EP0099413B1 - Method of straightening elongated round material and apparatus therefor - Google Patents

Method of straightening elongated round material and apparatus therefor Download PDF

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Publication number
EP0099413B1
EP0099413B1 EP82106454A EP82106454A EP0099413B1 EP 0099413 B1 EP0099413 B1 EP 0099413B1 EP 82106454 A EP82106454 A EP 82106454A EP 82106454 A EP82106454 A EP 82106454A EP 0099413 B1 EP0099413 B1 EP 0099413B1
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EP
European Patent Office
Prior art keywords
straightening
die
arc
stock
round material
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired
Application number
EP82106454A
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German (de)
French (fr)
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EP0099413A1 (en
Inventor
Johann Mostert
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Schumag AG
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Schumag AG
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Publication date
Application filed by Schumag AG filed Critical Schumag AG
Priority to EP82106454A priority Critical patent/EP0099413B1/en
Priority to DE8282106454T priority patent/DE3270096D1/en
Priority to JP58019862A priority patent/JPS5919045A/en
Priority to US06/473,456 priority patent/US4489582A/en
Publication of EP0099413A1 publication Critical patent/EP0099413A1/en
Application granted granted Critical
Publication of EP0099413B1 publication Critical patent/EP0099413B1/en
Expired legal-status Critical Current

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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D3/00—Straightening or restoring form of metal rods, metal tubes, metal profiles, or specific articles made therefrom, whether or not in combination with sheet metal parts
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D3/00—Straightening or restoring form of metal rods, metal tubes, metal profiles, or specific articles made therefrom, whether or not in combination with sheet metal parts
    • B21D3/02—Straightening or restoring form of metal rods, metal tubes, metal profiles, or specific articles made therefrom, whether or not in combination with sheet metal parts by rollers
    • B21D3/08—Straightening or restoring form of metal rods, metal tubes, metal profiles, or specific articles made therefrom, whether or not in combination with sheet metal parts by rollers which move in an orbit without rotating round the work
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21F—WORKING OR PROCESSING OF METAL WIRE
    • B21F1/00—Bending wire other than coiling; Straightening wire
    • B21F1/02—Straightening
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21F—WORKING OR PROCESSING OF METAL WIRE
    • B21F1/00—Bending wire other than coiling; Straightening wire
    • B21F1/02—Straightening
    • B21F1/023—Straightening in a device rotating about the wire axis

Definitions

  • the invention relates to a method for straightening elongated round material by moving forward in the longitudinal direction and simultaneously rotating about the longitudinal axis and thereby briefly deflecting from the inlet straight in a straightening sheet containing straightening nozzles while exceeding the flow limit.
  • the invention relates, according to the preamble of claim 3, to a device for carrying out this method for straightening elongated round material with at least one drive device for moving the round material axially and rotationally and at least one straightening sheet, each consisting at least of a deflecting straightening nozzle, an outlet straightening nozzle and a device for introducing the round material into the deflection straightening nozzle, and at least one device having takeover elements for taking over the round material behind an outlet straightening nozzle.
  • FIGS. 1 to 3 a straightening process of the prior art is shown in progressive sequence in FIGS. 1 to 3.
  • the figures mentioned schematically show the usual three straightening nozzles of a straightening sheet.
  • Figure 1 shows the inlet situation of the round material to be straightened.
  • the round material 1 entering through the directional nozzle 2 in the direction of entry is deflected upwards by the deflecting directional nozzle 4 and, with its front end, abuts the insertion funnel of the outlet nozzle 3.
  • FIG. 2 shows that the outlet nozzle 3 has taken over the round material 1 to be straightened at its beginning and bent it in the opposite direction again for forwarding and taking over by further machine elements.
  • the invention is therefore based on the object of proposing a straightening method with which a better straightening result is achieved at the ends of the round material rods to be straightened.
  • this object is achieved in a method of the type described at the outset in that the deviation from the infeed line which is forced in the straightening sheet by deflection is maintained approximately as the direction of exit from the straightening sheet.
  • the direction of exit of a preceding straightening sheet is approximately the direction of entry for a subsequent straightening sheet.
  • straightness errors of different wavelengths can be detected and directed by using several different straightening sheets. It is advisable to arrange a subsequent straightening sheet so that it can take over the outgoing round material in the outflow direction without any constraint.
  • Another object of the invention is to propose a device with which the method according to the invention can be carried out.
  • this object is achieved in a device of the type described in the introduction in that each device for taking over the round material behind an outlet straightening nozzle is aligned or can be aligned at least with its take-over elements in such a way that the round material emerging from the outlet straightening nozzle under the deviation from that required in the straightening sheet Inlet straight line is adopted without significant changes in direction.
  • each device for taking over the round material behind an outlet straightening nozzle is aligned or can be aligned at least with its take-over elements in such a way that the round material emerging from the outlet straightening nozzle under the deviation from that required in the straightening sheet Inlet straight line is adopted without significant changes in direction.
  • At least one device for taking over the round material is formed by a further straightening sheet comprising straightening nozzles. This makes it possible to combine the means for the formation of the directional sheet and the means for the formation of the device for taking over the round material in a sequence of straightening sheets, whereby the overall construction effort can be reduced.
  • one inlet straightening nozzle of the following straightening sheet forms the takeover element. This makes it possible to save a special takeover element in front of the respective straightening sheets.
  • a further embodiment of the device provides that at least the device for taking over the round material following the first straightening sheet is arranged on a base which changes in position. This makes it possible to easily adapt the device for taking over the round material to different discharge directions.
  • the outlet straightening nozzle of the first straightening sheet is arranged on the same position-changing base. In this way it is achieved that the device for taking over the round material automatically adapts to a change in the outlet direction.
  • a further embodiment of the device provides that the deflecting straightening nozzle of the first straightening sheet is also arranged on the same position-changing base. In this way, the most important elements for creating the straightening sheet and for taking over the leaking round material are combined in a common machine assembly.
  • the base can be pivoted about an axis perpendicular to the surface in which the round material curved in the straightening sheet lies. In this way, it is possible to adapt the device to different requirements by changing the curvature of the straightening sheet. At the same time, all components essential to the invention remain in the relative position to one another that is required to carry out the method according to the invention.
  • an aligned or orientable device for taking over the round material is arranged at least after the last outlet straightening nozzle of all straightening sheets.
  • the deflecting straightening nozzle of at least the first straightening sheet can be pivoted about its vertical axis independently of the base. This makes it possible to achieve fine adjustment of the straightening sheet by independently pivoting the deflecting straightening nozzle and thus by shifting the point of contact between the straightening nozzle and the material. In narrow areas, this can also influence the direction of discharge of the round material.
  • the outlet straightening nozzle of at least the first straightening sheet can be pivoted about its vertical axis independently of the base. This also applies to the fine-tuning of the straightening sheet and the influencing of the outlet direction of the round material.
  • a further embodiment of the device provides that the device for introducing the round material of at least the first straightening sheet is arranged on a stationary base. This minimizes the construction work for the moving parts and clearly separates the functional groups.
  • the inlet straightening nozzle of at least the first straightening sheet is arranged on an immobile base. This results in a more Bauschfachun is g achieved, which still has all the advantages of the invention.
  • the deflecting straightening nozzle of the first straightening sheet is also arranged on the immovable base. This combination offers the possibility of inexpensively retrofitting existing straightening machines so that the method according to the invention can be carried out.
  • a drivable pair of friction wheels 16 is arranged in the usual and known manner in the case of straightening machines of the generic type, which ensures the axial and rotational movement of the round material 20 to be straightened.
  • the round material 20 is moved forward in the direction of arrow 21.
  • Arrow 21 thus indicates the direction of transport of the round material 20.
  • the straightening nozzle 18 fulfills the task of reliably introducing the round material 20 into the inlet straightening nozzle 15 of the straightening sheet 1. It is entirely possible to arrange the straightening nozzle 18 as an outlet straightening nozzle of a straightening curve 19 (FIG. 2). In this straightening curve 19, the individual straightening nozzles are then arranged as closely as possible to one another and have only a relatively small radial offset relative to one another.
  • the relative arrangement of the straightening sheet 19 to the friction wheel pair 16 can be conventional, so that the outlet direction is the same or at least parallel to the inlet direction.
  • the relative arrangement of straightening sheet 19 and friction wheel pair 16 is provided in a conventional manner for the sake of simplicity, so that the round material 20 emerging from the straightening nozzle 18 of the straightening sheet 19 is first bent back by the inlet straightening nozzle 15 in the direction of the arrow 21.
  • the round material 20 can in principle be completely omitted in the straightening sheet 19.
  • the assembly 14 or 14a arranged on the immovable pedestal 13 in its entirety forms the device for introducing the round material 20 into the inlet straightening nozzle 15 of the straightening sheet 1.
  • the inlet straightening nozzle 15 is fixedly arranged on the immovable pedestal 13.
  • the straightening sheet 1 is the main straightening sheet in which the round material 20 is straightened with the desired tolerance.
  • the round material 20 is moved further out of the inlet straightening nozzle 15 in the direction of the arrow 21 and taken over by the deflecting straightening nozzle 10, which in the exemplary embodiment is arranged on the base 9 which changes in position, and is guided further into the outlet straightening nozzle 6.
  • the outlet straightening nozzle 6 is also arranged on the base 9 which can change its position.
  • the arrangement of the deflecting straightening nozzle 10 and the outlet straightening nozzle 6 on the position-changing base is such that the round material 20 to be straightened comes into contact with it approximately tangentially to the narrowest cross section of the mentioned straightening nozzles, as can be seen in FIGS. 1 and 2.
  • This type of contact between the round material 20 to be straightened and the aforementioned straightening nozzles is particularly advantageous, but is not absolutely necessary.
  • the deflecting directional nozzle 10 must be arranged on the base 9 so that it can rotate about its vertical axis independently of the position-changing base 9.
  • the position-changing pedestal 9 can be pivoted, as indicated by arrow 22, it is sufficient if the outlet directional nozzle 6 is rigidly arranged on the position-changing pedestal 9. Due to the pivotability of the position-changing base 9, the outlet straightening nozzle 6 always maintains the desired position.
  • the round material 20 to be straightened leaves the outlet straightening nozzle 6, it has undergone a deflection 3 from the inlet straight line 2 (FIG. 2) and has now become the directed round material 7. So that the unpleasant end defects described at the beginning do not occur, it must now be ensured that the round material 7 emerging from the outlet straightening nozzle 6 and now directed can continue to flow in the outlet direction 4 and is not bent back into or parallel to the inlet direction by subsequent directional nozzles The arrow 21.
  • the directional round material 7 is taken over from the inlet straightening nozzle 8 of a further straightening sheet 5 arranged on the base 9, which is variable in position.
  • a drivable friction wheel pair 17 is again provided in a known manner for the further transport of the straightened round material 7 .
  • the directed round material 7 can each but also without the interposition of a further straightening sheet 5 immediately after the outlet straightening nozzle 6 by the friction wheel pair 17.
  • a further straightening sheet 5 has the advantage, however, that small, short-wave unevenness can be re-aligned here.
  • the arrangement can be such that the friction wheel pair 17 is pivoted slightly so that it takes over the round material 7 running out of the straightening sheet 5 without a new change of direction.
  • straightening sheet 5 in combination with the friction wheel pair 17 can therefore be seen in its entirety as a device for taking over the round material behind the straightening sheet 1.
  • the pivotable arrangement of the position-changing base 9 is not the only possible design of a straightening machine for executing the straightening method according to the invention.
  • the entire device 14 or 14a and the straightening sheet 1 together on a fixed machine frame.
  • the straightening nozzles 6, 10 and 15 of the straightening sheet 1 can then be pivoted and displaced radially in a conventional manner and, if appropriate, can also be rotated additionally about the vertical axis. It is then only necessary to align the devices following the straightening sheet 1 in such a way that they can take over the round material emerging from the straightening sheet 1 without constraint.
  • these take-over devices can either be fixed in the required take-over position for a very specific and known application, or they can be pivotable or radially displaceable on their or with their base, or both to adapt to the necessary outlet direction. It is irrelevant here whether the devices that follow straightening sheet 1 are further straightening sheets for straightening minor unevenness or whether they are other devices.
  • the method according to the invention and the device according to the invention enable for the first time significant improvements in the straightening result at the respective ends of the bars to be straightened.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Wire Processing (AREA)
  • Treatment Of Fiber Materials (AREA)

Description

Die Erfindung betrifft nach dem Oberbegriff von Anspruch 1 ein Verfahren zum Richten von langgestrecktem Rundmaterial durch Vorwärtsbewegen in Längsrichtung und gleichzeitiges Drehen um die Längsachse und dabei kurzzeitiges Ablenken von der Einlauf geraden in einem Richtdüsen enthaltenden Richtbogen unter Überschreitung der Fließgrenze.According to the preamble of claim 1, the invention relates to a method for straightening elongated round material by moving forward in the longitudinal direction and simultaneously rotating about the longitudinal axis and thereby briefly deflecting from the inlet straight in a straightening sheet containing straightening nozzles while exceeding the flow limit.

Weiterhin betrifft die Erfindung gemäß Oberbegriff von Anspruch 3 eine Einrichtung zur Durchführung dieses Verfahrens zum Richten von langgestrecktem Rundmaterial mit mindestens einer Antriebseinrichtung, um das Rundmaterial axial und rotatorisch zu bewegen und mindestens einem Richtbogen, jeweils mindestens bestehend aus einer Umlenkrichtdüse, einer Auslaufrichtdüse und einer Einrichtung zum Einführen des Rundmaterials in die Umlenkrichtdüse, sowie mindestens einer Übernahmeelemente aufweisenden Einrichtung zum Übernehmen des Rundmaterials hinter einer Auslaufrichtdüse.Furthermore, the invention relates, according to the preamble of claim 3, to a device for carrying out this method for straightening elongated round material with at least one drive device for moving the round material axially and rotationally and at least one straightening sheet, each consisting at least of a deflecting straightening nozzle, an outlet straightening nozzle and a device for introducing the round material into the deflection straightening nozzle, and at least one device having takeover elements for taking over the round material behind an outlet straightening nozzle.

Verfahren zum Richten von langgestrecktem Rundmaterial der eingangs beschriebenen Art sind beispielsweise bekannt geworden durch die DE-A-29 37 635 oder durch die DE-A-30 20 536.Methods for straightening elongated round material of the type described in the introduction have become known, for example, from DE-A-29 37 635 or from DE-A-30 20 536.

Aus den genannten Schriften sind ebenfalls Einrichtungen der eingangs beschriebenen Art zur Durchführung solcher Verfahren bekannt geworden.Devices of the type described at the outset for carrying out such methods have also become known from the cited documents.

Die Technologie des Richtens von langgestrecktem Rundmaterial ist seit langem bekannt. Letzte Verbesserungen des Richtergebnisses wurden mit den in den eingangs genannten Schriften gelehrten Maßnahmen erreicht. Trotz der an sich gut bekannten Technologie des Richtens ist es jedoch bisher nicht gelungen, Anfang und Ende einer zu richtenden Rundmaterialstange befriedigend zu richten. Die bekannten Richtverfahren und Richteinrichtungen erzeugen an beiden Enden der zu richtenden Stange Bereiche unbefriedigender Geradheit, so daß der Verwender der gerichteten Stangen häufig gezwungen ist, die unbefriedigend gerichteten Enden der Stange abzuschneiden. Abgesehen von dem hierzu notwendigen zusätzlichen Arbeitsgang entsteht hierdurch auch ein relativ großer Materialverlust.The technology of straightening elongated round material has been known for a long time. The last improvements in the judging result were achieved with the measures taught in the writings mentioned at the beginning. Despite the well-known straightening technology, it has so far not been possible to satisfactorily straighten the beginning and end of a round material bar to be straightened. The known straightening methods and straightening devices produce areas of unsatisfactory straightness at both ends of the bar to be straightened, so that the user of the straightened bars is often forced to cut off the unsatisfactorily directed ends of the bar. Apart from the additional work step required for this, this also results in a relatively large loss of material.

In der DE-A-16 27 612 ist ein Richtverfahren des Standes der Technik in den Figuren 1 bis 3 in fortschreitender Folge dargestellt. Die genannten Figuren zeigen schematisch die üblichen drei Richtdüsen eines Richtbogens. Hierbei zeigt Figur 1 die Einlaufsituation des zu richtenden Rundmaterials. Das in Einlaufrichtung durch die Richtdüse 2 einlaufende Rundmaterial 1 wird von der Umlenkrichtdüse 4 in der Darstellung nach oben abgelenkt und stößt mit seinem vorderen Ende an den Einführungstrichter der Austrittsdüse 3 an. Figur 2 zeigt, daß die Auslaufdüse 3 das zu richtende Rundmaterial 1 an seinem Anfang übernommen und in entgegengesetzter Richtung wieder abgebogen hat zur Weiterleitung und Übernahme durch weitere Maschinenelemente. Diese weiteren Maschinenelemente sind im Stand der Technik entweder weitere Richtbögen oder eine am Ende angeordnete Antriebseinrichtung. Diese übernimmt das zu richtende Gut dann wieder so, daß der übernommene Bereich wieder in Einlaufrichtung fließt, wie deutlich der Figur 3 entnommen werden kann. Genau diese Vorgehensweise aber erzeugt die vorbeschriebenen Nachteile.In DE-A-16 27 612 a straightening process of the prior art is shown in progressive sequence in FIGS. 1 to 3. The figures mentioned schematically show the usual three straightening nozzles of a straightening sheet. Here, Figure 1 shows the inlet situation of the round material to be straightened. The round material 1 entering through the directional nozzle 2 in the direction of entry is deflected upwards by the deflecting directional nozzle 4 and, with its front end, abuts the insertion funnel of the outlet nozzle 3. FIG. 2 shows that the outlet nozzle 3 has taken over the round material 1 to be straightened at its beginning and bent it in the opposite direction again for forwarding and taking over by further machine elements. In the prior art, these further machine elements are either further straightening bends or a drive device arranged at the end. This then takes over the material to be straightened again so that the area taken over flows again in the direction of entry, as can be clearly seen in FIG. 3. It is exactly this approach that creates the disadvantages described above.

Es ist weiter mit der US-A-2 318 019 eine Einrichtung zum Abwickeln und Geradebiegen von auf Spulenkörpern aufgewickeltem Draht bekannt geworden, bei der der Draht zunächst mit der angenäherten Spulenkrümmung in eine Biegeeinrichtung eingefädelt und anschließend mit genügend großer Krümmung umgekehrter Richtung, jedoch in gleicher Ebene, wieder herausgeführt wird. Dies ist jedoch lediglich eine Grobausrichtung, die nur in einer Ebene erfolgt und zudem unerwünschte Spannungen im Werkstoff hinterläßt. Ein sauberes Richten von langgestrecktem Rundmaterial in allen möglichen Ebenen der auftretenden Ungeradheiten ist nicht möglich.With the US-A-2 318 019 a device for unwinding and straightening wire wound on bobbins is known, in which the wire is first threaded into a bending device with the approximate coil curvature and then with a sufficiently large curvature in the opposite direction, but in same level, is brought out again. However, this is only a rough alignment, which only takes place in one plane and also leaves undesirable stresses in the material. It is not possible to straighten elongated round material in all possible levels of unevenness.

Der Erfindung liegt somit die Aufgabe zugrunde, ein Richtverfahren vorzuschlagen, mit welchem ein besseres Richtergebnis an den Enden der zu richtenden Rundmaterialstangen erzielt wird.The invention is therefore based on the object of proposing a straightening method with which a better straightening result is achieved at the ends of the round material rods to be straightened.

Erfindungsgemäß wird diese Aufgabe bei einem Verfahren der eingangs beschriebenen Art dadurch gelöst, daß die im Richtbogen durch Ablenkung erzwungene Abweichung von der Einlaufgeraden ungefähr als Auslaufrichtung aus dem Richtbogen beibehalten wird. Uberraschenderweise hat diese Maßnahme in der praktischen Erprobung dazu geführt, daß an den Enden der zu richtenden Rundmaterialstangen nur noch sehr geringe Richtfehler auftreten und diese sich nur über einen wesentlich kürzeren Bereich erstrecken. Der immer noch vorhandene Richtfehler ist hierbei so gering, daß er vielfach in der Weiterverarbeitung dieser Stangen, beispielsweise durch spitzenloses Schleifen, nicht mehr hinderlich ist, sondern durch die Schleifoperation eliminiert wird. In solchen Fällen entsteht sogar überhaupt kein Abfallstück mehr an den zu richtenden Rundmaterialstangen.According to the invention, this object is achieved in a method of the type described at the outset in that the deviation from the infeed line which is forced in the straightening sheet by deflection is maintained approximately as the direction of exit from the straightening sheet. Surprisingly, this measure has resulted in practical testing that only very small straightening errors occur at the ends of the round material rods to be straightened and these only extend over a much shorter range. The straightening error that is still present is so small that it is often no longer a hindrance in the further processing of these rods, for example by centerless grinding, but is instead eliminated by the grinding operation. In such cases, there is no longer any waste piece at all on the round material rods to be straightened.

Nach einer Ausgestaltung des Verfahrens wird vorgeschlagen, daß die Auslaufrichtung eines vorangehenden Richtbogens ungefähr Einlaufrichtung für einen nachfolgenden Richtbogen ist. Bekanntermaßen können durch die Verwendung mehrerer unterschiedlicher Richtbögen Geradheitsfehler unterschiedlicher Wellenlänge erfaßt und gerichtet werden. Hierbei ist es zweckmäßig, einen nachfolgenden Richtbogen so anzuordnen, daß er das auslaufende Rundmaterial in der Auslaufrichtung ohne Zwang übernehmen kann. Hierbei kann es vorteilhaft sein, als nachfolgenden Richtbogen einen Richtbogen mit enger zusammenstehenden Richtdüsen anzuordnen, damit im fortlaufenden Richtprozeß immer kürzere Welligkeiten erfaßt werden. Sind dabei die aufeinander folgenden Richtbögen jeweils nach der Lehre der Erfindung angeordnet, so kann hierdurch der Endfehler immer weiter verringert werden.According to an embodiment of the method, it is proposed that the direction of exit of a preceding straightening sheet is approximately the direction of entry for a subsequent straightening sheet. As is known, straightness errors of different wavelengths can be detected and directed by using several different straightening sheets. It is advisable to arrange a subsequent straightening sheet so that it can take over the outgoing round material in the outflow direction without any constraint. Here it can be advantageous as after the following straightening sheet to arrange a straightening sheet with straightening straightening nozzles so that ever shorter ripples are detected in the continuous straightening process. If the successive straightening sheets are each arranged according to the teaching of the invention, the final error can thereby be reduced further and further.

Eine weitere Aufgabe der Erfindung ist es, eine Einrichtung vorzuschlagen, mit welcher das erfindungsgemäße Verfahren durchgeführt werden kann.Another object of the invention is to propose a device with which the method according to the invention can be carried out.

Erfindungsgemäß wird diese Aufgabe bei einer Einrichtung der eingangs beschriebenen Art dadurch gelöst, daß jede Einrichtung zum Übernehmen des Rundmaterials hinter einer Auslaufrichtdüse mindestens mit ihren Übernahmeelementen so ausgerichtet oder so ausrichtbar ist, daß das aus der Auslaufrichtdüse austretende Rundmaterial unter der im Richtbogen erzwungenen Abweichung gegenüber der Einlaufgeraden ohne nennenswerte Richtungsänderungen übernommen wird. Bei einer solchen Ausrichtung der Übernahmeelemente ist es problemlos möglich, die im Richtbogen erzwungene Ablenkung von der Einlaufgeraden als Auslaufrichtung aus dem Richtbogen beizubehalten.According to the invention, this object is achieved in a device of the type described in the introduction in that each device for taking over the round material behind an outlet straightening nozzle is aligned or can be aligned at least with its take-over elements in such a way that the round material emerging from the outlet straightening nozzle under the deviation from that required in the straightening sheet Inlet straight line is adopted without significant changes in direction. With such an alignment of the transfer elements, it is easily possible to maintain the deflection from the inlet straight line, which is forced in the straightening sheet, as the exit direction from the straightening sheet.

Nach einer Ausgestaltung der Einrichtung wird vorgeschlagen, daß mindestens eine Einrichtung zum Übernehmen des Rundmaterials von einem weiteren, Richtdüsen umfassenden Richtbogen gebildet wird. Hierdurch gelingt es, bei einer Folge von Richtbögen die Mittel für die Bildung des Richtbogens sowie die Mittel für die Bildung der Einrichtung zum Übernehmen des Rundmaterials miteinander zu kombinieren, wodurch der Gesamtbauaufwand verringert werden kann.According to an embodiment of the device, it is proposed that at least one device for taking over the round material is formed by a further straightening sheet comprising straightening nozzles. This makes it possible to combine the means for the formation of the directional sheet and the means for the formation of the device for taking over the round material in a sequence of straightening sheets, whereby the overall construction effort can be reduced.

Nach einer weiteren Ausgestaltung der Einrichtung wird vorgeschlagen, daß in einer Folge von mehreren Richtbögen jeweils eine Einlaufrichtdüse des nachfolgenden Richtbogens das Übernahmeelement bildet. Hierdurch gelingt es, ein besonderes Übernahmeelement vor den jeweiligen Richtbögen einzusparen.According to a further embodiment of the device, it is proposed that, in a sequence of several straightening sheets, one inlet straightening nozzle of the following straightening sheet forms the takeover element. This makes it possible to save a special takeover element in front of the respective straightening sheets.

Eine weitere Ausgestaltung der Einrichtung sieht vor, daß mindestens die dem ersten Richtbogen folgende Einrichtung zum Übernehmen des Rundmaterials auf einem lageveränderlichen Untersatz angeordnet ist. Hierdurch wird es möglich, die Einrichtung zum Übernehmen des Rundmaterials unterschiedlichen Auslaufrichtungen problemlos anzupassen.A further embodiment of the device provides that at least the device for taking over the round material following the first straightening sheet is arranged on a base which changes in position. This makes it possible to easily adapt the device for taking over the round material to different discharge directions.

Nach einer weiteren Ausgestaltung der Einrichtung ist noch vorgesehen, daß die Auslaufrichtdüse des ersten Richtbogens auf dem gleichen lageveränderlichen Untersatz angeordnet ist. Auf diese Art und Weise wird erreicht, daß sich die Einrichtung zum Übernehmen des Rundmaterials automatisch einer Veränderung der Auslaufrichtung anpaßt.According to a further embodiment of the device, it is also provided that the outlet straightening nozzle of the first straightening sheet is arranged on the same position-changing base. In this way it is achieved that the device for taking over the round material automatically adapts to a change in the outlet direction.

Eine weitere Ausgestaltung der Einrichtung sieht vor, daß auch die Umlenkrichtdüse des ersten Richtbogens auf dem gleichen lageveränderlichen Untersatz angeordnet ist. Auf diese Art und Weise sind die wichtigsten Elemente zur Erzeugung des Richtbogens und zur Übernahme des auslaufenden Rundmaterials in einer gemeinsamen Maschinenbaugruppe zusammengefaßt.A further embodiment of the device provides that the deflecting straightening nozzle of the first straightening sheet is also arranged on the same position-changing base. In this way, the most important elements for creating the straightening sheet and for taking over the leaking round material are combined in a common machine assembly.

Wiederum nach einer Ausgestaltung der Einrichtung ist vorgeschlagen, daß der Untersatz um eine Achse senkrecht zu der Fläche, in der das im Richtbogen gekrümmte Rundmaterial liegt, schwenkbar ist. Auf diese Art und Weise gelingt es, die Einrichtung durch Veränderung der Krümmung des Richtbogens unterschiedlichen Anforderungen anzupassen. Gleichzeitig bleiben hierbei alle für die Erfindung wesentlichen Bauelemente in der relativen Lage zueinander, die erforderlich ist, um das erfindungsgemäße Verfahren durchzuführen.Again according to an embodiment of the device, it is proposed that the base can be pivoted about an axis perpendicular to the surface in which the round material curved in the straightening sheet lies. In this way, it is possible to adapt the device to different requirements by changing the curvature of the straightening sheet. At the same time, all components essential to the invention remain in the relative position to one another that is required to carry out the method according to the invention.

Nach einer anderen Ausgestaltung der Einrichtung wiederum ist vorgesehen, daß eine ausgerichtete oder ausrichtbare Einrichtung zum Übernehmen des Rundmaterials mindestens der letzten Auslaufrichtdüse aller Richtbögen nachfolgend angeordnet ist. Hierdurch wird es möglich, beispielsweise einen Richtvorgang herkömmlicher Art in mehreren, in üblicher Weise hintereinander geschalteten oder überlagerten Richtbögen durchzuführen, dem sich dann durch die entsprechende Einrichtung zum Übernehmen des Rundmaterials in entsprechender Ausrichtung das Verfahren nach der Erfindung anschließt. Hierdurch wird es möglich, bereits bestehende Richtmaschinen baulich so zu ergänzen, daß auch mit diesen Maschinen das erfindungsgemäße Verfahren durchgeführt werden kann.According to another embodiment of the device, it is provided that an aligned or orientable device for taking over the round material is arranged at least after the last outlet straightening nozzle of all straightening sheets. This makes it possible, for example, to carry out a straightening process of a conventional type in a plurality of straightening sheets which are conventionally connected or superimposed one after the other, which is then followed by the method according to the invention by the corresponding device for taking over the round material in a corresponding orientation. This makes it possible to structurally supplement existing straightening machines so that the method according to the invention can also be carried out with these machines.

Wiederum nach einer anderen Ausgestaltung der Einrichtung ist vorgesehen, daß die Umlenkrichtdüse mindestens des ersten Richtbogens um ihre Hochachse unabhängig vom Untersatz schwenkbar ist. Hierdurch wird es möglich, Feinregulierungen des Richtbogens durch unabhängiges Schwenken der Umlenkrichtdüse und damit durch Verlagerung des Berührungspunktes zwischen Richtdüse und Werkstoff zu erreichen. In engen Bereichen kann außerdem hierdurch die Auslaufrichtung des Rundmaterials beeinflußt werden.According to another embodiment of the device, it is provided that the deflecting straightening nozzle of at least the first straightening sheet can be pivoted about its vertical axis independently of the base. This makes it possible to achieve fine adjustment of the straightening sheet by independently pivoting the deflecting straightening nozzle and thus by shifting the point of contact between the straightening nozzle and the material. In narrow areas, this can also influence the direction of discharge of the round material.

Nach einer anderen Ausgestaltung der Einrichtung wiederum ist vorgesehen, daß die Auslaufrichtdüse mindestens des ersten Richtbogens um ihre Hochachse unabhängig vom Unteratz schwenkbar ist. Auch dies gilt der Feinabstimmung des Richtbogens und der Beeinflussung der Auslaufrichtung des Rundmaterials.According to another embodiment of the device, it is again provided that the outlet straightening nozzle of at least the first straightening sheet can be pivoted about its vertical axis independently of the base. This also applies to the fine-tuning of the straightening sheet and the influencing of the outlet direction of the round material.

Eine weitere Ausgestaltung der Einrichtung sieht vor, daß die Einrichtung zum Einführen des Rundmaterials mindestens des ersten Richtbogens auf einem unbeweglichen Untersatz angeordnet ist. Hierdurch wird der Bauaufwand der beweglichen Teile minimiert und eine klare Trennung der Funktionsgruppen erreicht.A further embodiment of the device provides that the device for introducing the round material of at least the first straightening sheet is arranged on a stationary base. This minimizes the construction work for the moving parts and clearly separates the functional groups.

Nach einer anderen Ausgestaltung der Einrichtung ist noch vorgesehen, daß die Einlaufrichtdüse mindestens des ersten Richtbogens auf einem unbeweglichen Untersatz angeordnet ist. Hierdurch wird eine weitere Bauvereinfachung erreicht, die dennoch alle Vorteile der Erfindung aufweist.According to another embodiment of the device, it is also provided that the inlet straightening nozzle of at least the first straightening sheet is arranged on an immobile base. This results in a more Bauvereinfachun is g achieved, which still has all the advantages of the invention.

Schließlich ist noch nach einer weiteren Ausgestaltung der Einrichtung vorgesehen, daß die Umlenkrichtdüse des ersten Richtbogens ebenfalls auf dem unbeweglichen Untersatz angeordnet ist. Diese Kombination bietet die Möglichkeit, auf einfache Weise bereits bestehende Richtmaschinen kostengünstig so nachzurüsten, daß das erfindungsgemäße Verfahren durchführbar ist.Finally, according to a further embodiment of the device, it is provided that the deflecting straightening nozzle of the first straightening sheet is also arranged on the immovable base. This combination offers the possibility of inexpensively retrofitting existing straightening machines so that the method according to the invention can be carried out.

Die Erfindung soll nun anhand der beigefügten Zeichnungen, die ein Ausführungsbeispiel zeigen, näher erläutert werden.The invention will now be explained in more detail with reference to the accompanying drawings, which show an embodiment.

Es zeigen :

  • Figur 1 Prinzipdarstellung der erfindungsgemäßen Einrichtung in Draufsicht mit horizontalem Schnitt durch die Richtdüsen
  • Figur 2 Darstellung nach Figur 1, jedoch mit Einlaufrichtbogen für kurzwellige Geradheitsabweichungen
Show it :
  • Figure 1 schematic representation of the device according to the invention in plan view with a horizontal section through the directional nozzles
  • FIG. 2 representation according to FIG. 1, but with an inlet straightening curve for short-wave straightness deviations

Auf einem unbeweglichen Untersatz 13 ist in bei gattungsgemäßen Richtmaschinen üblicher und bekannter Weise ein antriebbares Reibradpaar 16 angeordnet, welches für die axiale und rotatorische Bewegung des zu richtenden Rundmaterials 20 sorgt. Das Rundmaterial 20 wird hierbei in Richtung des Pfeiles 21 vorwärts bewegt. Pfeil 21 gibt somit die Transportrichtung des Rundmaterials 20 an.On a stationary base 13, a drivable pair of friction wheels 16 is arranged in the usual and known manner in the case of straightening machines of the generic type, which ensures the axial and rotational movement of the round material 20 to be straightened. The round material 20 is moved forward in the direction of arrow 21. Arrow 21 thus indicates the direction of transport of the round material 20.

Wenn das Rundmaterial 20 in Transportrichtung das Reibradpaar 16 verläßt, wird es von einer Richtdüse 18 (Figur 1) übernommen und in die Einlaufrichtdüse 15 eingefädelt. Die Einlaufrichtdüse 15 ist fest auf dem unbeweglichen Untersatz 13 angeordnet. In der beschriebenen Anordnung erfüllt die Richtdüse 18 die Aufgabe, das Rundmaterial 20 zuverlässig in die Einlaufrichtdüse 15 des Richtbogens 1 einzuführen. Es ist hierbei durchaus möglich, die Richtdüse 18 als Auslaufrichtdüse eines Richtbogens 19 (Figur 2) anzuordnen. In diesem Richtbogen 19 sind dann die einzelnen Richtdüsen möglichst eng nebeneinander angeordnet und weisen nur einen relativ geringen radialen Versatz relativ zueinander auf. Der Richtbogen 19, welcher auf dem unbeweglichen Untersatz 13 angeordnet sein kann, dient nur dem Richten von kleinen, kurzwelligen Ungeradheiten. Hierbei kann die relative Anordnung des Richtbogens 19 zum Reibradpaar 16 in herkömmlicher Art sein, sodaß die Auslaufrichtung gleich oder mindestens parallel zur Einlaufrichtung ist. Es ist aber auch möglich, die dem Richtbogen 19 nachfolgenden Bauelemente oder Richtbögen so anzuordnen, daß die Auslaufrichtung aus der Richtdüse 18 des Richtbogens 19 beibehalten wird und von der nächsten Richtdüse, beispielsweise der Einlaufrichtdüse 15 des Richtbogens 1 zwanglos übernommen wird. Im Ausführungsbeispiel ist die relative Anordnung von Richtbogen 19 und Reibradpaar 16 der Einfachheit halber in herkömmlicher Weise vorgesehen, sodaß das aus der Richtdüse 18 des Richtbogens 19 austretende Rundmaterial 20 von der Einlaufrichtdüse 15 zunächst zurückgebogen wird in die Einlaufrichtung des Pfeiles 21.When the round material 20 leaves the friction wheel pair 16 in the transport direction, it is taken over by a straightening nozzle 18 (FIG. 1) and threaded into the inlet straightening nozzle 15. The inlet straightening nozzle 15 is fixedly arranged on the immobile base 13. In the arrangement described, the straightening nozzle 18 fulfills the task of reliably introducing the round material 20 into the inlet straightening nozzle 15 of the straightening sheet 1. It is entirely possible to arrange the straightening nozzle 18 as an outlet straightening nozzle of a straightening curve 19 (FIG. 2). In this straightening curve 19, the individual straightening nozzles are then arranged as closely as possible to one another and have only a relatively small radial offset relative to one another. The straightening sheet 19, which can be arranged on the immobile pedestal 13, only serves to straighten small, short-wave oddities. Here, the relative arrangement of the straightening sheet 19 to the friction wheel pair 16 can be conventional, so that the outlet direction is the same or at least parallel to the inlet direction. However, it is also possible to arrange the components or straightening sheets following the straightening sheet 19 such that the outlet direction from the straightening nozzle 18 of the straightening sheet 19 is maintained and is taken over by the next straightening nozzle, for example the inlet straightening nozzle 15 of the straightening sheet 1. In the exemplary embodiment, the relative arrangement of straightening sheet 19 and friction wheel pair 16 is provided in a conventional manner for the sake of simplicity, so that the round material 20 emerging from the straightening nozzle 18 of the straightening sheet 19 is first bent back by the inlet straightening nozzle 15 in the direction of the arrow 21.

Wie jedoch das Ausführungsbeispiel nach Figur 1 zeigt, kann ein Vorrichten des Rundmaterials 20 im Richtbogen 19 im Prinzip völlig entfallen.However, as the exemplary embodiment according to FIG. 1 shows, the round material 20 can in principle be completely omitted in the straightening sheet 19.

Die auf dem unbeweglichen Untersatz 13 angeordnete Baugruppe 14 bzw. 14a bildet in ihrer Gesamtheit die Einrichtung zum Einführen des Rundmaterials 20 in die Einlaufrichtdüse 15 des Richtbogens 1. Im Ausführungsbeispiel ist hierbei die Einlaufrichtdüse 15 fest auf dem unbeweglichen Untersatz 13 angeordnet. Der Richtbogen 1 ist der Hauptrichtbogen, in welchem das Rundmaterial 20 mit der gewünschten Toleranz gerichtet wird. Hierzu wird das Rundmaterial 20 aus der Einlaufrichtdüse 15 in Richtung des Pfeiles 21 weiter bewegt und von der Umlenkrichtdüse 10, welche im Ausführungsbeispiel auf dem lageveränderlichen Untersatz 9 angeordnet ist, übernommen und weiter in die Auslaufrichtdüse 6 geführt. Die Auslaufrichtdüse 6 ist ebenfalls auf dem lageveränderlichen Untersatz 9 angeordnet. Im Ausführungsbeispiel ist die Anordnung der Umlenkrichtdüse 10 und der Auslaufrichtdüse 6 auf dem lageveränderlichen Untersatz derart, daß das zu richtende Rundmaterial 20 etwa tangential zum engsten Querschnitt der genannten Richtdüsen an diesen zur Anlage kommt, so wie in den Figuren 1 und 2 erkennbar. Diese Art der Berührung zwischen dem zu richtenden Rundmaterial 20 und den genannten Richtdüsen ist zwar besonders vorteilhaft, aber nicht zwingend notwendig. Um den beschriebenen Vorteil zu erreichen, muß die Umlenkrichtdüse 10 um ihre Hochachse unabhängig vom lageveränderlichen Untersatz 9 drehbar auf diesem angeordnet sein.The assembly 14 or 14a arranged on the immovable pedestal 13 in its entirety forms the device for introducing the round material 20 into the inlet straightening nozzle 15 of the straightening sheet 1. In the exemplary embodiment, the inlet straightening nozzle 15 is fixedly arranged on the immovable pedestal 13. The straightening sheet 1 is the main straightening sheet in which the round material 20 is straightened with the desired tolerance. For this purpose, the round material 20 is moved further out of the inlet straightening nozzle 15 in the direction of the arrow 21 and taken over by the deflecting straightening nozzle 10, which in the exemplary embodiment is arranged on the base 9 which changes in position, and is guided further into the outlet straightening nozzle 6. The outlet straightening nozzle 6 is also arranged on the base 9 which can change its position. In the exemplary embodiment, the arrangement of the deflecting straightening nozzle 10 and the outlet straightening nozzle 6 on the position-changing base is such that the round material 20 to be straightened comes into contact with it approximately tangentially to the narrowest cross section of the mentioned straightening nozzles, as can be seen in FIGS. 1 and 2. This type of contact between the round material 20 to be straightened and the aforementioned straightening nozzles is particularly advantageous, but is not absolutely necessary. In order to achieve the described advantage, the deflecting directional nozzle 10 must be arranged on the base 9 so that it can rotate about its vertical axis independently of the position-changing base 9.

Da im Ausführungsbeispiel der lageveränderliche Untersatz 9, wie mit Pfeil 22 angegedeutet, schwenkbar ist, genügt es, wenn die Auslaufrichtdüse 6 auf dem lageveränderlichen Untersatz 9 starr angeordnet ist. Durch die Schwenkbarkeit des lageveränderlichen Untersatzes 9 behält die Auslaufrichtdüse 6 immer die gewünschte Lage bei.Since, in the exemplary embodiment, the position-changing pedestal 9 can be pivoted, as indicated by arrow 22, it is sufficient if the outlet directional nozzle 6 is rigidly arranged on the position-changing pedestal 9. Due to the pivotability of the position-changing base 9, the outlet straightening nozzle 6 always maintains the desired position.

Wenn das zu richtende Rundmaterial 20 die Auslaufrichtdüse 6 verläßt, hat es eine Ablenkung 3 von der Einlaufgeraden 2 (Fig. 2) erfahren und ist nunmehr zum gerichteten Rundmaterial 7 geworden. Damit die unangenehmen und eingangs beschriebenen Endenfehler nicht entstehen, muß nun dafür gesorgt werden, daß das aus der Auslaufrichtdüse 6 austretende und nunmehr gerichtete Rundmaterial 7 in Auslaufrichtung 4 weiterfließen kann und nicht etwa durch nachfolgende Richtdüsen wieder zurück gebogen wird in die oder parallel zur Einlaufrichtung nach dem Pfeil 21. Im Ausführungsbeispiel wird hierzu das gerichtete Rundmaterial 7 von der Einlaufrichtdüse 8 eines weiteren, auf dem lageveränderlichen Untersatz 9 angeordneten Richtbogens 5 zwanglos übernommen, hinter dem Richtbogen 5 ist wiederum ein antreibbares Reibradpaar 17 in bekannter Weise zum Weitertransport des gerichteten Rundmaterials 7 vorgesehen. Das gerichtete Rundmaterial 7 kann jedoch auch ohne Zwischenschaltung eines weiteren Richtbogens 5 sofort hinter der Auslaufrichtdüse 6 von dem Reibradpaar 17 übernommen werden.When the round material 20 to be straightened leaves the outlet straightening nozzle 6, it has undergone a deflection 3 from the inlet straight line 2 (FIG. 2) and has now become the directed round material 7. So that the unpleasant end defects described at the beginning do not occur, it must now be ensured that the round material 7 emerging from the outlet straightening nozzle 6 and now directed can continue to flow in the outlet direction 4 and is not bent back into or parallel to the inlet direction by subsequent directional nozzles The arrow 21. In the exemplary embodiment, the directional round material 7 is taken over from the inlet straightening nozzle 8 of a further straightening sheet 5 arranged on the base 9, which is variable in position. Behind the straightening bow 5, a drivable friction wheel pair 17 is again provided in a known manner for the further transport of the straightened round material 7 . The directed round material 7 can each but also without the interposition of a further straightening sheet 5 immediately after the outlet straightening nozzle 6 by the friction wheel pair 17.

Die Nachschaltung eines weiteren Richtbogens 5 hat jedoch den Vorteil, daß hier noch einmal kleine, kurzwellige Ungeradheiten nachgerichtet werden können. Hierbei kann die Anordnung so sein, daß das Reibradpaar 17 leicht geschwenkt ist, sodaß es das aus dem Richtbogen 5 auslaufende Rundmaterial 7 ohne neue Richtungsänderung übernimmt. Dies wäre dann eine Anordnung nach der hier vorliegenden Erfindung. Da die im Richtbogen 5 noch zu richtenden Beträge in aller Regel kleiner sind als die geforderte Geradheitstoleranz der gesamten, zu richtenden Rundmaterialstange, ist eine solche Anordnung nicht unbedingt erforderlich. Es ist durchaus möglich, das Reibradpaar 17 so anzuordnen, daß das aus dem Richtbogen auslaufende Rundmaterial wieder in dieselbe Richtung zurückgeholt wird wie das in die Einlaufrichtdüse 8 des Richtbogens 5 einlaufende Rundmaterial 7. Die sich hierdurch ergebende Endenabbiegung ist ihrer Größe nach so klein, daß sie hingenommen werden kann. Dies liegt daran, daß die Hauptrichtarbeit im Richtbogen 1 vorgenommen wurde und der Richtbogen 5 so gestaltet ist, daß nur sehr kleine, kurzwellige Geradheitsabweichungen gerichtet werden. In einer Anordnung nach den dargestellten Ausführungsbeispielen ist daher der Richtbogen 5 in Kombination mit dem Reibradpaar 17 in seiner Gesamtheit als Einrichtung zum Übernehmen des Rundmaterials hinter dem Richtbogen 1 anzusehen.The addition of a further straightening sheet 5 has the advantage, however, that small, short-wave unevenness can be re-aligned here. Here, the arrangement can be such that the friction wheel pair 17 is pivoted slightly so that it takes over the round material 7 running out of the straightening sheet 5 without a new change of direction. This would then be an arrangement according to the present invention. Since the amounts still to be straightened in straightening sheet 5 are generally smaller than the required straightness tolerance of the entire round material bar to be straightened, such an arrangement is not absolutely necessary. It is entirely possible to arrange the pair of friction wheels 17 in such a way that the round material flowing out of the straightening sheet is brought back in the same direction as the round material 7 entering the straightening nozzle 8 of the straightening sheet 5. The resulting end bend is so small in size that it is small it can be accepted. This is because the main straightening work was carried out in straightening sheet 1 and straightening sheet 5 is designed so that only very small, short-wave deviations in straightness are straightened. In an arrangement according to the exemplary embodiments shown, the straightening sheet 5 in combination with the friction wheel pair 17 can therefore be seen in its entirety as a device for taking over the round material behind the straightening sheet 1.

Es soll besonders darauf hingewiesen werden, daß die schwenkbare Anordnung des lageveränderlichen Untersatzes 9 nicht die einzig mögliche Gestaltung einer Richtmaschine zur Ausführung des erfindungsgemäßen Richtverfahrens ist. Es ist beispielsweise durchaus denkbar, die gesamte Einrichtung 14 bzw. 14a und den Richtbogen 1 gemeinsam auf einem festen Maschinengestell anzuordnen. Hierbei können dann die Richtdüsen 6, 10 und 15 des Richtbogens 1 in herkömmlicher Weise schwenkbar und radial versetzbar und ggf. noch zusätzlich um die Hochachse drehbar sein. Es ist dann lediglich erforderlich, die dem Richtbogen 1 nachfolgenden Einrichtungen so auszurichten, daß sie das aus dem Richtbogen 1 austretende Rundmaterial ohne Zwang übernehmen können. Hierbei können diese Übernahmeeinrichtungen entweder für einen ganz bestimmten und bekannten Einsatzfall in der notwendigen Übernahmeposition fixiert sein oder aber sie können auf ihrem oder mit ihrem Untersatz schwenkbar oder radial verschiebbar oder beides sein zur Anpassung an die notwendige Auslaufrichtung. Hierbei ist es unerheblich, ob die Einrichtungen, die dem Richtbogen 1 folgen, weitere Richtbögen zum Richten von kleineren Ungeradheiten sind oder ob es sich um andere Einrichtungen handelt.It should be particularly pointed out that the pivotable arrangement of the position-changing base 9 is not the only possible design of a straightening machine for executing the straightening method according to the invention. For example, it is entirely conceivable to arrange the entire device 14 or 14a and the straightening sheet 1 together on a fixed machine frame. In this case, the straightening nozzles 6, 10 and 15 of the straightening sheet 1 can then be pivoted and displaced radially in a conventional manner and, if appropriate, can also be rotated additionally about the vertical axis. It is then only necessary to align the devices following the straightening sheet 1 in such a way that they can take over the round material emerging from the straightening sheet 1 without constraint. In this case, these take-over devices can either be fixed in the required take-over position for a very specific and known application, or they can be pivotable or radially displaceable on their or with their base, or both to adapt to the necessary outlet direction. It is irrelevant here whether the devices that follow straightening sheet 1 are further straightening sheets for straightening minor unevenness or whether they are other devices.

Es ist jedoch auch denkbar, mehrere Richtbögen hintereinander in der erfindungsgemäßen Anordnung vorzusehen, sodaß eine Art Sinusverlauf sämtlicher Richtdüsen aller hintereinander geschalteten Richtbögen entsteht. Wichtig ist lediglich, daß nach Austritt aus einem vorangehenden Richtbogen der Eintritt in den nachfolgenden Richtbogen zwanglos, d. h. unter Beibehaltung der Austrittsrichtung erfolgt. Auch ist denkbar, solcherart hintereinander geschaltete Richtbögen zu einem übergeordneten Richtbogen zusammen zu fassen, mit dem dann besonders langwellige Ungeradheiten gerichtet werden können.However, it is also conceivable to provide a plurality of straightening bends one behind the other in the arrangement according to the invention, so that a kind of sinusoidal curve is produced for all the straightening nozzles of all the straightening bends connected in series. It is only important that after leaving a previous directional sheet, entry into the subsequent directional sheet is casual, i.e. H. done while maintaining the exit direction. It is also conceivable to combine straightening sheets connected in series in this way to form a superordinate straightening sheet, with which particularly long-wave oddities can then be straightened.

Das erfindungsgemäße Verfahren und die erfindungsgemäße Vorrichtung ermöglichen erstmals deutliche Verbesserungen des Richtergebnisses an den jeweiligen Enden der zu richtenden Stangen.The method according to the invention and the device according to the invention enable for the first time significant improvements in the straightening result at the respective ends of the bars to be straightened.

Claims (15)

1. Method for straightening drawn round stock (20) by moving the said stock forward in lengthwise direction (21) and simultaneously rotating the stock about the longitudinal axis and thereby briefly deflecting the stock from a straight line (2) in a straightening arc (1) containing straightening dies whereby the yield point of the stock is exceeded, characterized in that the deflection from the straight line (2) enforced in the straightening arc is approximately kept as the exit path (4) out of the straightening arc (1).
2. Method according to claim 1 characterized in that the exit path of a preceding straightening arc (1) is approximately the entry path for a following straightening arc (5).
3. Apparatus for carrying out the method according to claims 1 and 2 for straightening drawn round stock (20) with at least one drive means (17, 16) for advancing the stock (20) axially and rotating and at least one straightening arc (1) each consisting of at least a deflecting die (10), an exit die (6) and a device (14, 14a) for introducing the stock into the deflecting die as well as a device having at least one receiving element for receiving the round stock behind an exit die (6) characterized in that each device (5, 17) for receiving the round stock (20) behind the exit die (6) is oriented or can be oriented behind an exit die at least by its receiving elements (8, 17) so that the round stock (7) leaving the exit die (6) with the deflection from the straight line enforced by the straightening arc (1) is received without a mentionable change of direction.
4. Apparatus according to claim 3 characterized in that at least a device for receiving the round stock is formed by a further straightening arc (5) containing straightening dies.
5. Apparatus according to claims 3 and 4 characterized in that in a series of more straightening arcs (15) an entry die (8) forms the receiving element of the following straightening arc (5) respectively.
6. Apparatus according to claims 3 to 5 characterized in that at least the device for receiving the round stock (7) behind the first straightening arc (1) is mounted on a movable frame (9).
7. Apparatus according to claim 6 characterized in that the exit die (6) of the first straightening arc (1) is mounted on the same movable frame (9).
8. Apparatus according to claim 7 characterized in that also the deflecting die (10) of the first straightening arc (1) is mounted on the same movable frame (9).
9. Apparatus according to claims 6 to 8 characterized in that the frame is pivotable about an axis (11) perpendicular to the plane in which the curved round stock (7) lies in the straightening arc (1).
10. Apparatus according to claim 3 characterized in that an adjusted or adjustable device for receiving the round stock (7) is arranged at least behind the last exit die of all straightening arcs.
11. Apparatus according to claims 3 to 10 characterized in that the deflecting die (10) of at least the first straightening arc (1) is pivotable independently of the frame (9).
12. Apparatus according to claims 3 to 10 characterized in that the exit die (6) of at least the first straightening arc (1) is pivotable about its axis independently of the frame (9).
13. Apparatus according to claims 3 to 10 characterized in that the device for introducing the round stock (7) of at least the first straightening arc (1) is mounted on an immovable frame (13).
14. Apparatus according to claims 3 to 7 characterized in that the entry die (15) of at least the first straightening arc (1) is mounted on an immovable frame (13).
15. Apparatus according to claims 3 to 7 and 9 to 14 characterized in that the deflecting die (10) of the first straightening arc (1) is also mounted on an immovable frame (13).
EP82106454A 1982-07-17 1982-07-17 Method of straightening elongated round material and apparatus therefor Expired EP0099413B1 (en)

Priority Applications (4)

Application Number Priority Date Filing Date Title
EP82106454A EP0099413B1 (en) 1982-07-17 1982-07-17 Method of straightening elongated round material and apparatus therefor
DE8282106454T DE3270096D1 (en) 1982-07-17 1982-07-17 Method of straightening elongated round material and apparatus therefor
JP58019862A JPS5919045A (en) 1982-07-17 1983-02-10 Method and device for straightening round wire rod
US06/473,456 US4489582A (en) 1982-07-17 1983-03-09 Method for straightening drawn round stock and apparatus for the practice of the method

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP82106454A EP0099413B1 (en) 1982-07-17 1982-07-17 Method of straightening elongated round material and apparatus therefor

Publications (2)

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EP0099413A1 EP0099413A1 (en) 1984-02-01
EP0099413B1 true EP0099413B1 (en) 1986-03-26

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US (1) US4489582A (en)
EP (1) EP0099413B1 (en)
JP (1) JPS5919045A (en)
DE (1) DE3270096D1 (en)

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* Cited by examiner, † Cited by third party
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Family Cites Families (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE503092C (en) * 1929-07-22 1930-07-19 Friedr Boecker Philipp S Sohn Straightening and polishing machine for round bars
US1936765A (en) * 1930-04-04 1933-11-28 Steel And Tubes Inc Method of bending and apparatus therefor
US1977223A (en) * 1931-09-15 1934-10-16 Petter B Abramsen Apparatus for finishing tubes and rounds
US2318019A (en) * 1941-04-10 1943-05-04 Metallizing Engineering Compan Device for removing curvature from metallizing wires
US2936811A (en) * 1956-10-30 1960-05-17 Sutton Eng Co Straightening machine table
US3222906A (en) * 1962-04-13 1965-12-14 Iii Bernard J Aurin Tube processing apparatus
DE1627612A1 (en) * 1967-01-27 1971-01-14 Schumag Schumacher Metallwerke Straightening device
SU453216A1 (en) * 1973-04-18 1974-12-15 DEVICE FOR THE EDITION AND POLISHING OF BARS
US3998083A (en) * 1975-08-11 1976-12-21 Kawecki Berylco Industries, Inc. Straightening apparatus
US4057988A (en) * 1976-08-16 1977-11-15 Kotaro Tsukamoto Rectifying equipment of bar material
DE3020536A1 (en) * 1980-05-30 1981-12-10 Schumag Gmbh, 5100 Aachen Straightening die for round stock - has stock passed through die and simultaneously rotated longitudinally and deflected in straightening arc
DE2937635A1 (en) * 1979-09-18 1981-03-19 Schumag Gmbh, 5100 Aachen Straightening unit for drawn round metal bars - has line of dies alternately contacting opposite sides of bar rotated by rotary end dies
IT1146189B (en) * 1979-09-18 1986-11-12 Schumag Gmbh PROCEDURE AND DEVICE FOR STRAIGHTENING LONG DRAWN IRONED MATERIAL

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111001733A (en) * 2019-12-05 2020-04-14 中国二十冶集团有限公司 Rapid machining device for arc stirrups and using method thereof

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EP0099413A1 (en) 1984-02-01
US4489582A (en) 1984-12-25
DE3270096D1 (en) 1986-04-30
JPS5919045A (en) 1984-01-31

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