EP0549520A1 - Straightener die for a wire straightening machine - Google Patents

Straightener die for a wire straightening machine Download PDF

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Publication number
EP0549520A1
EP0549520A1 EP92810889A EP92810889A EP0549520A1 EP 0549520 A1 EP0549520 A1 EP 0549520A1 EP 92810889 A EP92810889 A EP 92810889A EP 92810889 A EP92810889 A EP 92810889A EP 0549520 A1 EP0549520 A1 EP 0549520A1
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EP
European Patent Office
Prior art keywords
straightening
insert
chuck
opening
face
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.)
Granted
Application number
EP92810889A
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German (de)
French (fr)
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EP0549520B1 (en
Inventor
Stephan Wirth
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Pantex Stahl AG
Original Assignee
Pantex-Stahl AG
Pantex Stahl AG
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Filing date
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Publication of EP0549520A1 publication Critical patent/EP0549520A1/en
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Publication of EP0549520B1 publication Critical patent/EP0549520B1/en
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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
    • 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
    • B21D3/06—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 arranged inclined to a revolving flier rolling frame
    • 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

  • Known straightening devices for straightening wire have a plurality of interchangeable straightening jaws as wear parts, via which the wire is drawn off.
  • the straightening jaws are made of different materials.
  • straightening jaws made of gray cast iron are used for reinforcing steels.
  • these wear out relatively quickly, especially if the wire to be dressed has an outwardly protruding profile. This results in short service life of the straightening jaws.
  • the present invention is based on the object of designing straightening jaws of the type mentioned at the outset in such a way that they enable inexpensive operation of a straightening device. This object is achieved by the combination of features of claims 1 and 8.
  • FIG. 1 and 2 show the process of straightening a wire 1 in a rotating straightening body 2.
  • Five pairs of straightening jaws 3 bend the continuous wire 1 as shown in FIG. 2 in a wave-like manner, the waves constantly changing due to the rotation of the straightening body 2. This removes the tension in the wire and the wire leaves the straightening device in a straight form and we are then cut to length.
  • FIGS. 3 and 4 A straightening jaw 3 according to the invention is shown in FIGS. 3 and 4.
  • An approximately cuboidal chuck 31 is provided with a longitudinal directional groove 32 on an end face 36.
  • an inlet part 33 and an outlet part 34 are formed from the groove 32.
  • the inlet and outlet parts are preferably identical, symmetrical to the central plane, differing from the illustration in FIG. 4.
  • the inlet part 33 and the outlet part 34 each have a base inclined towards the end face 36. They converge against each other.
  • the chuck 31 has on both sides a bulge 37 bulging like a cylinder segment, similar to a cylinder 40 penetrating the chuck 31, the axis of which is perpendicular to the end face 36.
  • This cylinder 40 has a central bore 41, the axis of which is also perpendicular to the upper end face 36 and into which a straightening insert 50 is inserted.
  • the straightening insert 50 has a saddle shape at the upper end Straightening boss 35, which connects the inlet part 33 and the outlet part 34 to one another and forms the groove 32 together with these.
  • the bore 41 opens into a concentric countersink 42 which has a stop surface 43 at at least one point.
  • the straightening insert 50 is cylindrical.
  • the straightening insert 50 has a concentric flange 51 which has stop surfaces 52 which match the stop surfaces 43 of the countersink 42. The straightening insert 5 thus remains aligned in the bore 41.
  • the set screws 11 in the straightening body 2 determine the position of the straightening jaw pairs 3 and thus press against the side of the chuck 31 in which the recess 42 and the flange 51 are located.
  • the straightening insert 50 thus does not have to be soldered in. It can be easily replaced if a wire with a different diameter has to be processed or a worn straightening insert has to be replaced.
  • the feed 31 can therefore be used repeatedly.
  • the straightening jaws 3 can have a flat base surface 38 opposite the end face 36 or it can be provided with lugs 39, as the illustration of the straightening jaws 3 in FIG. 1 shows. These lugs 39 protect the screws 11 in the event of a wire break.
  • the material of the straightening insert 50 depends on the intended use.
  • the straightening insert 50 advantageously consists of hard metal.
  • the lining 11 preferably consists of gray cast iron. Both the lining 11 and the straightening insert 50 can be produced inexpensively. Due to the easy interchangeability, the downtimes of the straightening device are kept short.
  • the embodiment 5 - 7 differs from that of FIGS. 3 and 4 mainly in that the flange 51 is omitted on the straightening insert 50.
  • the straightening insert 50 is cylindrical over its entire height. It has an oval cross-section to prevent rotation (Fig. 7). Accordingly, the opening 41 is oval.
  • the straightening insert 50 can have ample play of up to several millimeters in the opening 41.
  • the opening 41 has a shoulder 44 at the top of the straightening groove 32, against which flat end faces 53 of the straightening insert 50 rest.
  • the opening 41 is closed at the bottom by a cover 60 which is fitted with a e.g. circular cylindrical pin 61 is centered in the opening 41 and abuts with a flange 62 on the lower end face 38 of the chuck 31.
  • the lid 60 is e.g. held by a bracket 63 made of spring steel. This can be inserted in a groove 64 of the cover 60 and snaps on top with hooks 65 in grooves 66 in the thickenings 37 of the lining 31.
  • the straightening insert 50 can be produced particularly inexpensively.
  • the feed 31 can be reused several times.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Wire Processing (AREA)
  • Nonmetallic Welding Materials (AREA)

Abstract

The straightener die (3) comprises a cuboid chuck (31) with a flat front face (36). The front face (36) has an inlet part (33) and an outlet part (34) of a straightening groove (32). Arranged between them, perpendicularly to the front face (36), is an opening (41). A straightening insert (51) made of sintered carbide is inserted loosely but in a manner secured against rotation into the opening (41). On the front side, the straightening insert (51) has a straightening saddle (35) which connects the grooves (33,34). This design ensures that the straightener die has a long service life and that the down times of the straightening machine are short and the costs of its manufacture are low. <IMAGE>

Description

Bekannte Richtvorrichtungen zum Geraderichten von Draht weisen als Verschleissteile mehrere auswechselbare Richtbacken auf, über welche der Draht abgezogen wird. Je nach Art des abzuziehenden Drahtes bestehen die Richtbacken aus unterschiedlichen Materialien. Für Armierungsstähle werden beispielsweise Richtbacken aus Grauguss verwendet. Diese verschleissen aber relativ rasch, insbesondere wenn der abzurichtende Draht eine nach aussen vorstehende Profilierung hat. Dies ergibt kurze Standzeiten der Richtbacken.Known straightening devices for straightening wire have a plurality of interchangeable straightening jaws as wear parts, via which the wire is drawn off. Depending on the type of wire to be removed, the straightening jaws are made of different materials. For example, straightening jaws made of gray cast iron are used for reinforcing steels. However, these wear out relatively quickly, especially if the wire to be dressed has an outwardly protruding profile. This results in short service life of the straightening jaws.

Der vorliegenden Erfindung liegt die Aufgabe zugrunde, Richtbacken der eingangs genannten Art derart auszubilden, dass sie einen kostengünstigen Betrieb einer Richtvorrichtung ermöglichen. Diese Aufgabe wird durch die Merkmalskombination der Ansprüche 1 und 8 gelöst.The present invention is based on the object of designing straightening jaws of the type mentioned at the outset in such a way that they enable inexpensive operation of a straightening device. This object is achieved by the combination of features of claims 1 and 8.

Nachfolgend werden Ausführungsbeispiele der Erfindung anhand der Zeichnung erläutert. Darin zeigt:

Fig. 1
einen Längsschnitt durch einen Richtkörper mit fünf Richtbackenpaaren,
Fig. 2
die Verformung des Drahtes beim Geraderichten,
Fig. 3
eine perspektivische Ansicht eines Richtbackens nach der Erfindung,
Fig. 4
einen Längsschnitt gemäss der Schnittlinie IV-IV in Fig. 3,
Fig. 5
eine perspektivische Ansicht einer zweiten Ausführungsform der Erfindung,
Fig. 6
einen Querschnitt durch die Ausführungsform nach Fig. 6, und
Fig. 7
eine Stirnansicht eines Richteinsatzes.
Exemplary embodiments of the invention are explained below with reference to the drawing. It shows:
Fig. 1
a longitudinal section through a straightening body with five pairs of straightening jaws,
Fig. 2
the deformation of the wire when straightening,
Fig. 3
2 shows a perspective view of a straightening jaw according to the invention,
Fig. 4
3 shows a longitudinal section along the section line IV-IV in FIG. 3,
Fig. 5
2 shows a perspective view of a second embodiment of the invention,
Fig. 6
a cross section through the embodiment of FIG. 6, and
Fig. 7
an end view of a straightening insert.

Fig. 1 und 2 zeigen den Ablauf des Geraderichtens eines Drahtes 1 in einem rotierenden Richtkörper 2. Durch fünf Paare Richtbacken 3 wird der durchlaufende Draht 1 gemäss Fig. 2 wellenartig verbogen, wobei sich die Wellen infolge des Rotierens des Richtkörpers 2 dauernd rotierend verändern. Damit werden die Spannungen im Draht aufgehoben und der Draht verlässt die Richtvorrichtung in gerader Form und wir anschliessend abgelängt.1 and 2 show the process of straightening a wire 1 in a rotating straightening body 2. Five pairs of straightening jaws 3 bend the continuous wire 1 as shown in FIG. 2 in a wave-like manner, the waves constantly changing due to the rotation of the straightening body 2. This removes the tension in the wire and the wire leaves the straightening device in a straight form and we are then cut to length.

Ein erfindungsgemässer Richtbacken 3 ist in Fig. 3 und 4 dargestellt. Ein annähernd quaderförmiges Futter 31 ist an einer Stirnseite 36 mit einer längslaufenden Richtnut 32 versehen. An der Stirnseite 36 des Futters 31 ist von der Nut 32 ein Einlaufteil 33 und ein Auslaufteil 34 ausgebildet. Vorzugsweise sind Einlauf- und Auslaufteil identisch, symmetrisch zur Mittelebene, abweichend von der Darstellung in Fig. 4. Einlaufteil 33 und Auslaufteil 34 haben je einen zur Stirnseite 36 geneigten Grund. Sie konvergieren gegeneinander. Mittig hat das Futter 31 beidseits eine zylindersegmentförmig ausgewölbte Verdickung 37 ähnlich einem das Futter 31 durchdringenden Zylinder 40, dessen Achse senkrecht zur Stirnseite 36 steht. Dieser Zylinder 40 hat eine zentrische Bohrung 41, deren Achse ebenfalls senkrecht zur oberen Stirnfläche 36 ist, und in die ein Richteinsatz 50 eingesetzt ist. Der Richteinsatz 50 hat am oberen Stirnende einen sattelförmigen Richtbuckel 35, der den Einlaufteil 33 und den Auslaufteil 34 miteinander verbindet und zusammen mit diesen die Nut 32 bildet. Untenseitig mündet die Bohrung 41 in eine konzentrische Ansenkung 42, die an wenigstens einer Stelle eine Anschlagfläche 43 besitzt. Der Richteinsatz 50 ist zylindrisch ausgebildet. An seinem dem Richtbuckel 35 entgegengesetzten Ende hat der Richteinsatz 50 einen konzentrischen Flansch 51, der mit den Anschlagflächen 43 der Ansenkung 42 übereinstimmende Anschlagflächen 52 aufweist. Damit bleibt der Richteinsatz 5 ausgerichtet in der Bohrung 41 eingesetzt.A straightening jaw 3 according to the invention is shown in FIGS. 3 and 4. An approximately cuboidal chuck 31 is provided with a longitudinal directional groove 32 on an end face 36. On the front side 36 of the chuck 31, an inlet part 33 and an outlet part 34 are formed from the groove 32. The inlet and outlet parts are preferably identical, symmetrical to the central plane, differing from the illustration in FIG. 4. The inlet part 33 and the outlet part 34 each have a base inclined towards the end face 36. They converge against each other. In the center, the chuck 31 has on both sides a bulge 37 bulging like a cylinder segment, similar to a cylinder 40 penetrating the chuck 31, the axis of which is perpendicular to the end face 36. This cylinder 40 has a central bore 41, the axis of which is also perpendicular to the upper end face 36 and into which a straightening insert 50 is inserted. The straightening insert 50 has a saddle shape at the upper end Straightening boss 35, which connects the inlet part 33 and the outlet part 34 to one another and forms the groove 32 together with these. On the underside, the bore 41 opens into a concentric countersink 42 which has a stop surface 43 at at least one point. The straightening insert 50 is cylindrical. At its end opposite the directional boss 35, the straightening insert 50 has a concentric flange 51 which has stop surfaces 52 which match the stop surfaces 43 of the countersink 42. The straightening insert 5 thus remains aligned in the bore 41.

Die Stellschrauben 11 im Richtkörper 2 (Fig. 1) bestimmen die Lage der Richtbackenpaare 3 und drücken somit gegen die Seite des Futters 31, in der sich die Vertiefung 42 und der Flansch 51 befinden. Damit muss der Richteinsatz 50 nicht eingelötet werden. Er kann leicht ausgewechselt werden, wenn ein Draht mit anderem Durchmesser bearbeitet oder ein abgenützter Richteinsatz ersetzt werden muss. Das Futter 31 kann daher wiederholt verwendet werden.The set screws 11 in the straightening body 2 (FIG. 1) determine the position of the straightening jaw pairs 3 and thus press against the side of the chuck 31 in which the recess 42 and the flange 51 are located. The straightening insert 50 thus does not have to be soldered in. It can be easily replaced if a wire with a different diameter has to be processed or a worn straightening insert has to be replaced. The feed 31 can therefore be used repeatedly.

Der Richtbacken 3 kann eine Ebene Grundfläche 38 gegenüberliegend der Stirnfläche 36 haben oder er kann mit Nasen 39 versehen sein, wie die Darstellung der Richtbacken 3 in Fig. 1 zeigt. Diese Nasen 39 schützen die Schrauben 11 bei Drahtbruch.The straightening jaws 3 can have a flat base surface 38 opposite the end face 36 or it can be provided with lugs 39, as the illustration of the straightening jaws 3 in FIG. 1 shows. These lugs 39 protect the screws 11 in the event of a wire break.

Das Material des Richteinsatzes 50 richtet sich nach dem Verwendungszweck. Für Armierungsstähle mit oder ohne Profil besteht der Richteinsatz 50 vorteilhafterweise aus Hartmetall. Das Futter 11 besteht demgegenüber vorzugsweise aus Grauguss. Sowohl Futter 11 als auch Richteinsatz 50 können kostengünstig hergestellt werden. Durch die leichte Auswechselbarkeit werden auch die Stillstandszeiten der Richtvorrichtung gering gehalten.The material of the straightening insert 50 depends on the intended use. For reinforcing steels with or without a profile, the straightening insert 50 advantageously consists of hard metal. In contrast, the lining 11 preferably consists of gray cast iron. Both the lining 11 and the straightening insert 50 can be produced inexpensively. Due to the easy interchangeability, the downtimes of the straightening device are kept short.

Es wäre zwar möglich, den Richteinsatz 50 in die Bohrung 41 einzulöten. Die Anmelderin hat jedoch festgestellt, dass überraschenderweise die Standzeiten ganz wesentlich höher sind, wenn der Richteinsatz 50 nur lose in das Futter 31 eingelegt ist. Dieser Umstand wird darauf zurückgeführt, dass das Hartlöten die Werkstoffeigenschaften des Hartmetalls ungünstig beeinflusst. Eine zusätzliche Erhöhung der Standzeit um 30 % bis 50 % kann dadurch erreicht werden, dass die Richtbacken 3 periodisch gewendet werden. Deshalb wird die symmetrische Ausbildung der Richtnut 32 bezüglich der Mittelebene der Richtbacken 3 bevorzugt. Das periodische Wenden der Richtbacken 3 wirkt sich auch positiv aus auf die Beanspruchung der Richtvorrichtung.It would be possible to solder the straightening insert 50 into the bore 41. However, the applicant has found that, surprisingly, the service life is considerably longer if the straightening insert 50 is only loosely inserted into the chuck 31. This fact is attributed to the fact that brazing adversely affects the material properties of the hard metal. An additional increase in tool life by 30% to 50% can be achieved by periodically turning the straightening jaws 3. Therefore, the symmetrical formation of the straightening groove 32 with respect to the center plane of the straightening jaws 3 is preferred. The periodic turning of the straightening jaws 3 also has a positive effect on the stress on the straightening device.

Bei der Ausführungsform nach Fig. 5 - 7 sind analoge Teile mit gleichen Bezugszeichen versehen, so dass sich eine detaillierte Erläuterung dieser Teile erübrigt. Die Ausführungsform nach Fig. 5 - 7 unterscheidet sich von jener nach Fig. 3 und 4 hauptsächlich dadurch, dass am Richteinsatz 50 der Flansch 51 weggelassen ist. Der Richteinsatz 50 ist über seine ganze Höhe zylindrisch. Zur Drehsicherung hat er einen ovalen Querschnitt (Fig. 7). Dementsprechend ist auch die Oeffnung 41 oval. Der Richteinsatz 50 kann in der Oeffnung 41 reichlich Spiel von bis zu mehreren Millimetern haben.In the embodiment according to FIGS. 5-7, analog parts are provided with the same reference numerals, so that a detailed explanation of these parts is unnecessary. The embodiment 5 - 7 differs from that of FIGS. 3 and 4 mainly in that the flange 51 is omitted on the straightening insert 50. The straightening insert 50 is cylindrical over its entire height. It has an oval cross-section to prevent rotation (Fig. 7). Accordingly, the opening 41 is oval. The straightening insert 50 can have ample play of up to several millimeters in the opening 41.

Um ein Herausfallen des Richteinsatzes 50 beim Einbau des Backens 3 in den Richtkörper 2 zu vermeiden, hat die Oeffnung 41 oben seitlich der Richtnut 32 eine Schulter 44, gegen welche ebene Stirnflächen 53 des Richteinsatzes 50 anliegen. Um den Richtbacken 3 als Einheit ein- und ausbauen zu können, ist die Oeffnung 41 unten durch einen Deckel 60 verschlossen, der mit einem z.B. kreiszylindrischen Zapfen 61 in der Oeffnung 41 zentriert ist und mit einem Flansch 62 an der unteren Stirnseite 38 des Futters 31 anliegt. Der Deckel 60 wird z.B. durch einen Bügel 63 aus Federstahl gehalten. Dieser kann in einer Nut 64 des Deckels 60 eingelegt sein und schnappt oben mit Haken 65 in Nuten 66 in den Verdickungen 37 des Futters 31 ein.In order to prevent the straightening insert 50 from falling out when the jaw 3 is installed in the straightening body 2, the opening 41 has a shoulder 44 at the top of the straightening groove 32, against which flat end faces 53 of the straightening insert 50 rest. In order to be able to install and remove the straightening jaws 3 as a unit, the opening 41 is closed at the bottom by a cover 60 which is fitted with a e.g. circular cylindrical pin 61 is centered in the opening 41 and abuts with a flange 62 on the lower end face 38 of the chuck 31. The lid 60 is e.g. held by a bracket 63 made of spring steel. This can be inserted in a groove 64 of the cover 60 and snaps on top with hooks 65 in grooves 66 in the thickenings 37 of the lining 31.

Durch diese Ausbildung kann der Richteinsatz 50 besonders kostengünstig hergestellt werden. Auch hier kann das Futter 31 mehrfach wiederverwendet werden.With this design, the straightening insert 50 can be produced particularly inexpensively. Here too, the feed 31 can be reused several times.

Claims (10)

Richtbacken für eine Richtvorrichtung (2) zum Geraderichten von Draht (1), umfassend: - ein Futter (31), das an seiner ersten Stirnseite (36) einen Einlaufteil (33) und einen Auslaufteil (34) einer Richtnut (32) hat und zwischen dem Einlaufteil (33) und dem Auslaufteil (34) eine senkrecht zur ersten Stirnseite (36) verlaufende, zylindrische oder prismatische Oeffnung (41) aufweist, und - einen in die Oeffnung (41) eingesetzten, gegenüber dem Futter (3) gegen Verdrehen gesicherten Richteinsatz (50), der stirnseitig einen den Einlaufteil (33) mit dem Auslaufteil (34) verbindenden, sattelförmigen Richtbuckel (35) aufweist. Straightening jaws for a straightening device (2) for straightening wire (1), comprising: - A chuck (31) which has on its first end face (36) an inlet part (33) and an outlet part (34) of a directional groove (32) and between the inlet part (33) and the outlet part (34) a perpendicular to the first end side (36) extending, cylindrical or prismatic opening (41), and - A straightening insert (50) inserted into the opening (41) and secured against rotation against the chuck (3), which has a saddle-shaped directional boss (35) connecting the inlet part (33) to the outlet part (34) on the end face. Richtbacken nach Anspruch 1, wobei der Richteinsatz (50) allseits formschlüssig im Futter (31) mit Spiel gehalten ist.Straightening jaws according to claim 1, wherein the straightening insert (50) is positively held on all sides in the chuck (31). Richtbacken nach Anspruch 2, wobei die Oeffnung (41) benachbart der ersten Stirnseite (36) eine Schulter (44) zum Rückhalten des Richteinsatzes (50) hat und auf der gegenüberliegenden zweiten Stirnseite (38) ein Halteelement (60) eingesetzt ist, das die Oeffnung (41) mindestens teilweise verschliesst.Straightening jaw according to claim 2, wherein the opening (41) adjacent to the first end face (36) has a shoulder (44) for retaining the straightening insert (50) and on the opposite second end face (38) a holding element (60) is inserted, which Opening (41) at least partially closes. Richtbacken nach Anspruch 3, wobei das Halteelement (60) durch Schnappfedern (63) am Futter (31) eingerastet ist.Straightening jaws according to claim 3, wherein the holding element (60) is snapped onto the chuck (31) by snap springs (63). Richtbacken nach einem der Ansprüche 1 bis 4, wobei die Oeffnung (41) und der Richteinsatz (50) einen unrunden Querschnitt haben.Straightening jaws according to one of claims 1 to 4, wherein the opening (41) and the straightening insert (50) have a non-circular cross-section. Richtbacken nach einem der Ansprüche 1 bis 5, wobei das Futter (31) aus Grauguss besteht.Straightening jaws according to one of claims 1 to 5, wherein the chuck (31) consists of gray cast iron. Richtbacken nach einem der Ansprüche 1 bis 6, wobei die Richtnut (32) bestehend aus Einlaufteil (33), Auslaufteil (34) und Richtbuckel (35) symmetrisch zu einer Mittelebene des Richtbackens (3) ausgebildet ist.Straightening jaws according to one of claims 1 to 6, wherein the straightening groove (32) consisting of inlet part (33), outlet part (34) and straightening boss (35) is formed symmetrically to a central plane of the straightening jaw (3). Richteinsatz (50) zur Verwendung in einem Richtbacken (3) gemäss einem der Ansprüche 1 bis 7, wobei der Richteinsatz (50) zylindrisch oder prismatisch ausgebildet ist und auf der einen Stirnseite einen sattelförmigen Richtbuckel (35) aufweist und Drehsicherungsmittel hat, um ihn gegen ein Verdrehen in einem Futter (31) zu sichern.Straightening insert (50) for use in a straightening jaw (3) according to one of claims 1 to 7, the straightening insert (50) being cylindrical or prismatic and on one end face a saddle-shaped straightening boss (35) and has anti-rotation means to secure it against twisting in a chuck (31). Richteinsatz nach Anspruch 8, wobei er einen über seine ganze Höhe annähernd konstanten, unrunden Querschnitt hat.Straightening insert according to claim 8, wherein it has an approximately constant, non-circular cross-section over its entire height. Richteinsatz nach Anspruch 8 oder 9, wobei er aus Hartmetall besteht.Straightening insert according to claim 8 or 9, wherein it consists of hard metal.
EP92810889A 1991-11-29 1992-11-16 Straightener die for a wire straightening machine Expired - Lifetime EP0549520B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CH3507/91 1991-11-29
CH350791 1991-11-29

Publications (2)

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EP0549520A1 true EP0549520A1 (en) 1993-06-30
EP0549520B1 EP0549520B1 (en) 1996-07-03

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EP92810889A Expired - Lifetime EP0549520B1 (en) 1991-11-29 1992-11-16 Straightener die for a wire straightening machine

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US (1) US5327757A (en)
EP (1) EP0549520B1 (en)
AT (1) ATE139917T1 (en)
DE (1) DE59206702D1 (en)
DK (1) DK0549520T3 (en)
ES (1) ES2090575T3 (en)
GR (1) GR3020462T3 (en)

Cited By (2)

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Publication number Priority date Publication date Assignee Title
WO1994005439A1 (en) * 1992-09-03 1994-03-17 Neumann Steel Pty. Ltd. Adjustable re-usable ceramic inserts
FR2720960A1 (en) * 1994-06-13 1995-12-15 Rockford Mfg Group Wire straightener with long-lasting dies.

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Publication number Priority date Publication date Assignee Title
ES2102794T3 (en) * 1993-03-25 1997-08-01 Schlatter Ag PROCEDURE FOR INTERMITTENT RIGHTENING OF WIRE.
JP3962085B1 (en) * 2005-10-20 2007-08-22 協栄線材株式会社 Cable hanger manufacturing apparatus and manufacturing method
CN106077282B (en) * 2016-06-02 2018-07-13 温州职业技术学院 A kind of C100 shift forks shaping module

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CH673605A5 (en) * 1987-10-01 1990-03-30 Schlatter Ag

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DE349328C (en) * 1919-05-15 1922-03-01 Glauer & Co Device for straightening profiled bars
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US3335764A (en) * 1965-05-19 1967-08-15 Hugh A Pilling Apparatus for straightening wire
DE2449873A1 (en) * 1974-10-21 1976-04-29 Hufnagl Walter Wire straightening machine with rollers or dies - has ceramic coating on tool vibration absorbing substrate for process improvement
US4177843A (en) * 1978-05-08 1979-12-11 Sarver Douglas R Wire straightener die

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1994005439A1 (en) * 1992-09-03 1994-03-17 Neumann Steel Pty. Ltd. Adjustable re-usable ceramic inserts
FR2720960A1 (en) * 1994-06-13 1995-12-15 Rockford Mfg Group Wire straightener with long-lasting dies.

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ES2090575T3 (en) 1996-10-16
GR3020462T3 (en) 1996-10-31
DE59206702D1 (en) 1996-08-08
ATE139917T1 (en) 1996-07-15
EP0549520B1 (en) 1996-07-03
US5327757A (en) 1994-07-12
DK0549520T3 (en) 1996-07-29

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