WO2004024367A1 - Device for bending a piece of iron wire - Google Patents

Device for bending a piece of iron wire Download PDF

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Publication number
WO2004024367A1
WO2004024367A1 PCT/EP2003/009388 EP0309388W WO2004024367A1 WO 2004024367 A1 WO2004024367 A1 WO 2004024367A1 EP 0309388 W EP0309388 W EP 0309388W WO 2004024367 A1 WO2004024367 A1 WO 2004024367A1
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WO
WIPO (PCT)
Prior art keywords
bending
wire
iron wire
piece
adjustable
Prior art date
Application number
PCT/EP2003/009388
Other languages
German (de)
French (fr)
Inventor
Ralf Kräher
Original Assignee
Kraeher Ralf
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Kraeher Ralf filed Critical Kraeher Ralf
Publication of WO2004024367A1 publication Critical patent/WO2004024367A1/en

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21F—WORKING OR PROCESSING OF METAL WIRE
    • B21F45/00—Wire-working in the manufacture of other particular articles
    • B21F45/16—Wire-working in the manufacture of other particular articles of devices for fastening or securing purposes
    • B21F45/22—Wire-working in the manufacture of other particular articles of devices for fastening or securing purposes of paper fasteners or clips
    • 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
    • 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
    • B21F1/002—Bending wire other than coiling; Straightening wire by means of manually operated devices, e.g. pliers
    • 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
    • B21F1/006—Bending wire other than coiling; Straightening wire in 3D with means to rotate the tools about the wire axis

Definitions

  • the invention relates to a device to be operated and set up by hand for bending a relatively short piece of wire with a relatively small wire thickness by means of an adjustable bending device.
  • the present invention addresses the problem of creating a simple device, by means of which a multi-bent piece of wire is created, which, for. B. can be used as a paper clip.
  • a multi-bent piece of wire which, for. B. can be used as a paper clip.
  • it is a matter of creating curved wire pieces which on the one hand can take on the function of a paper clip, but on the other hand differ from previously known clips.
  • Figure 1 shows an enlarged view of a paper clip which has been produced with the aid of a device according to the invention.
  • Figure 4 shows different positions of the bending device.
  • two wire feed rollers can be seen in the first illustration on the left, which are designed in such a way that they can receive a piece of wire and can hold it securely in a desired position. Accordingly, the rollers can be provided with a groove that closely matches the wire thickness of the piece of wire used.
  • the wire can be moved in its longitudinal extent by rotating the conveyor rollers. It arrives at a bending point, which is shown schematically on the right in FIG. 4 in the form of two pins attached to a disk.
  • the pins protrude from the paper plane at a distance from each other. The distance has been chosen so that the piece of wire can be guided between the two pins and that the pins can in turn engage the wire at a certain point along the wire.
  • the disk to which the two pins are attached can be rotated about an axis perpendicular to the plane of the paper, so that when the disk rotates accordingly, the two pins cause the wire to bend, as is the case in FIGS. 2 and 3 at different stages is shown.
  • the bending pins In position 3 of FIG. 4, the bending pins have already returned to their original position, the wire is moved a further distance between the two pins, as can be seen in position 4 and in position 5 a further bending process is carried out, this time in the opposite sense ,
  • the pins have been made relatively thin in diameter in order to be able to carry out bends in a confined space.
  • the disc that carries the two pins can also be pivoted so that the bending axis does not remain perpendicular to the plane of the paper, but can take an angle to the plane of the paper, so that the bending process can be carried out out of the plane, which is the case with a special shape, for example Brackets may be desirable if, for example, the clasped objects are not flat or not completely flat.
  • rollers for conveying the wire and the disk for the bending process can be attached to a mounting plate.
  • the individual conveying and bending processes are expediently carried out by hand, although a motor drive is also conceivable.
  • the figure does not show stops and templates for the bending process, so that, in particular, an inexperienced person can produce paper clips of the same appearance if they adhere to the specifications. Otherwise, it is up to the operator to give their creativity free rein.
  • FIG. 2 shows the individual bending processes which have to be carried out one after the other in order to obtain the paper clip shown on an enlarged scale in FIG.
  • the wire piece is provided with distance markings only for illustration purposes.
  • paper clips can be made of wire with integrated symbols, in particular in such a way that the same outer contours always result, even though the inner contours are modeled on the desired symbols.
  • Paper clips with so-called undercuts are conceivable, in particular bends can be carried out to the right and to the left.
  • a wire structure can also be produced in which the individual pieces of wire come to lie in different planes to one another.
  • the minimum radius around which a piece of wire can be bent results from the thickness of the piece of wire. If this radius were smaller than the wire thickness, the material would be crushed and the cross-section reduced at the bending point, which is generally not desirable.
  • Common paper clips have a thickness of 0.9 mm, so that the smallest radius is 1.8 mm. This in turn results in the minimum space requirement for a 180 ° bend of 3.6 mm x 1.8 mm, i.e. approximately 7 mm 2 .
  • an electrical, pneumatic or hydraulic drive is provided.
  • a stepper motor with corresponding control electronics could be used in which the individual bending steps can be stored, so that, for example, once performed Bending processes can be saved and then repeated as often as necessary.
  • the bending pins with their washer could also be moved out of their bending position to such an extent that after a 180 ° bending process the piece of wire is released and a further bending process beyond 180 ° can then be carried out after the bending pins have been returned to their working position.
  • the bending process takes place from the inside to the outside.
  • it is also possible to carry out combined bending processes for example to bend a piece of wire up to a certain area from one side and then to carry out further bending processes from the other side.

Abstract

The invention relates to a manually operating and adjusting device for bending a relatively short and thin peace of iron wire by adjustable bending. The aim of said invention is to bend the pieces of iron wire whose length ranges approximately from 10 to 20 cm and thickness is equal approximately to 1 mm, thereby producing paper clips having a similar structure. For this purpose, at least one system for bending is used, the curvature angle between the input of the iron wire and the output thereof being adjustable between 0 and approximately 180°. Said system also makes it possible to bend the iron wire outside the plane of the introduction thereof.

Description

Vorrichtung zum Biegen eines Drahtstückes Device for bending a piece of wire
Die Erfindung bezieht sich auf eine von Hand zu betätigende und einzurichtende Vorrichtung zum Biegen eines relativ kurzen Drahtstückes mit relativ geringer Drahtdicke mittels verstellbarer Biegeeinrichtung.The invention relates to a device to be operated and set up by hand for bending a relatively short piece of wire with a relatively small wire thickness by means of an adjustable bending device.
Die vorliegende Erfindung befasst sich mit dem Problem eine einfache Vorrichtung zu schaffen, mit deren Hilfe ein mehrfach gebogenes Drahtstück entsteht, das z. B. als Büroklammer einsetzbar ist. Insbesondere geht es darum, gebogene Drahtstücke zu schaffen, die einerseits die Funktion einer Büroklammer übernehmen können, andererseits jedoch sich von bislang bekannten Klammern unterscheiden.The present invention addresses the problem of creating a simple device, by means of which a multi-bent piece of wire is created, which, for. B. can be used as a paper clip. In particular, it is a matter of creating curved wire pieces which on the one hand can take on the function of a paper clip, but on the other hand differ from previously known clips.
Erreicht wird dies mit einer Vorrichtung der eingangs genannten Art dadurch, dass zum Biegen von kurzen Drahtstücken zu Klammern ähnlichen Gebilden mindestens eine Biegeeinrichtung vorgesehen ist. Mit Hilfe der Vorrichtung gemäß der Erfindung können Klammern so hergestellt werden, dass sie an den Vorgang des Zusammenbringens von Objekten angepasst sind oder eine eigentümliche Gestalt haben, um etwa durch diese Klammern zu kennzeichnen, zu welcher Akte die umklammerten Papiere gehören.This is achieved with a device of the type mentioned at the outset in that at least one bending device is provided for bending short pieces of wire into structures similar to staples. With the aid of the device according to the invention, staples can be produced in such a way that they are adapted to the process of bringing objects together or have a peculiar shape, for example by means of these staples to indicate to which file the wrapped papers belong.
Die Erfindung wird nachstehend anhand der Zeichnung beispielsweise erläutert.The invention is explained below with reference to the drawing, for example.
Figur 1 zeigt in vergrößerter Darstellung eine Büroklammer, die mit Hilfe einer Vorrichtung gemäß der Erfindung, hergestellt worden ist.Figure 1 shows an enlarged view of a paper clip which has been produced with the aid of a device according to the invention.
BESTATIGUNGSKOPIE Die Figuren 2 und 3 zeigen einzelne Fertigungsstufen.BESTATIGUNGSKOPIE Figures 2 and 3 show individual manufacturing stages.
Figur 4 zeigt unterschiedliche Stellungen der Biegevorrichtung.Figure 4 shows different positions of the bending device.
In Figur 4 sind in der ersten Darstellung links zwei Drahtförderrollen zu erkennen, welche so ausgestaltet sind, dass sie ein Drahtstück aufnehmen können und in einer gewünschten Lage sicher halten können. Entsprechend können die Rollen mit einer Nut versehen sein, die eng zu der Drahtdicke des verwendeten Drahtstückes passt.In FIG. 4, two wire feed rollers can be seen in the first illustration on the left, which are designed in such a way that they can receive a piece of wire and can hold it securely in a desired position. Accordingly, the rollers can be provided with a groove that closely matches the wire thickness of the piece of wire used.
Es ist ersichtlich, dass durch Drehen der Förderrollen der Draht in seiner Längserstreckung bewegt werden kann. Er gelangt zu einer Biegestelle, die rechts in der Figur 4 schematisch in der Form von zwei an einer Scheibe befestigten Stiften dargestellt ist. Die Stifte stehen in einem Abstand zueinander aus der Papierebene nach oben vor. Der Abstand ist so gewählt worden, dass das Drahtstück zwischen die beiden Stifte geführt werden kann und dass die Stifte wiederum an einer bestimmten Stelle längs des Drahtes mit dem Draht in Eingriff treten können.It can be seen that the wire can be moved in its longitudinal extent by rotating the conveyor rollers. It arrives at a bending point, which is shown schematically on the right in FIG. 4 in the form of two pins attached to a disk. The pins protrude from the paper plane at a distance from each other. The distance has been chosen so that the piece of wire can be guided between the two pins and that the pins can in turn engage the wire at a certain point along the wire.
Die Scheibe, an der die beiden Stifte befestigt sind, ist um eine senkrecht zur Papierebene liegende Achse drehbar, so dass bei einer entsprechenden Drehbewegung der Scheibe die beiden Stifte eine Verbiegung des Drahtes bewirken, so wie dies in den Figuren 2 und 3 in unterschiedlichen Stadien gezeigt ist. In Position 3 der Fig. 4 haben die Biegestifte bereits wieder die Ursprungslage eingenommen, der Draht wird ein weiteres Stück zwischen den beiden Stiften hindurchbewegt, wie dies Position 4 erkennen lässt und in der Position 5 wird ein weiterer Biegevorgang durchgeführt, diesmal allerdings im entgegengesetzten Sinne. Die Stifte sind verhältnismäßig dünn in ihrem Durchmesser ausgeführt worden, um Biegungen auf engstem Raum durchführen zu können. Die Scheibe, die die beiden Stifte trägt kann auch so verschwenkt werden, dass die Biegeachse nicht senkrecht zur Papierebene verbleibt, sondern zur Papierebene einen Winkel einnehmen kann, so dass der Biegevorgang aus der Ebene heraus durchgeführt werden kann, was beispielsweise bei einer speziellen Form einer Klammer erwünscht sein kann, wenn z.B. die umklammerten Objekte nicht plan oder nicht vollständig eben sind.The disk to which the two pins are attached can be rotated about an axis perpendicular to the plane of the paper, so that when the disk rotates accordingly, the two pins cause the wire to bend, as is the case in FIGS. 2 and 3 at different stages is shown. In position 3 of FIG. 4, the bending pins have already returned to their original position, the wire is moved a further distance between the two pins, as can be seen in position 4 and in position 5 a further bending process is carried out, this time in the opposite sense , The pins have been made relatively thin in diameter in order to be able to carry out bends in a confined space. The disc that carries the two pins can also be pivoted so that the bending axis does not remain perpendicular to the plane of the paper, but can take an angle to the plane of the paper, so that the bending process can be carried out out of the plane, which is the case with a special shape, for example Brackets may be desirable if, for example, the clasped objects are not flat or not completely flat.
Die Rollen zum Fördern des Drahtes und die Scheibe für den Biegevorgang können an einer Montageplatte befestigt sein. Die einzelnen Förder- und Biegevorgänge werden zweckmäßigerweise von Hand durchgeführt, wenngleich auch ein motorischer Antrieb denkbar ist.The rollers for conveying the wire and the disk for the bending process can be attached to a mounting plate. The individual conveying and bending processes are expediently carried out by hand, although a motor drive is also conceivable.
In der Figur nicht gezeigt sind Anschläge und Vorlagen für den Biegevorgang, so dass insbesondere eine nicht geübte Person Büroklammern von immer gleichem Aussehen herstellen kann, wenn sie sich an die Vorgaben hält. Ansonsten ist es der Bedienungsperson überlassen, ihrer Kreativität freien Raum zu geben.The figure does not show stops and templates for the bending process, so that, in particular, an inexperienced person can produce paper clips of the same appearance if they adhere to the specifications. Otherwise, it is up to the operator to give their creativity free rein.
Die Figur 2 zeigt die einzelnen Biegevorgänge, die nacheinander durchgeführt werden müssen, um die in Figur 1 in vergrößertem Maßstab gezeigte Büroklammer zu erhalten. Lediglich zur Veranschaulichung ist das Drahtstück mit Abstandsmarkierungen versehen.FIG. 2 shows the individual bending processes which have to be carried out one after the other in order to obtain the paper clip shown on an enlarged scale in FIG. The wire piece is provided with distance markings only for illustration purposes.
Am unteren Ende der Darstellungen nach Figur 2 werden weitere Biegevorgänge entsprechend der Figur 3 rechts von oben nach unten betrachtet durchgeführt. Mit Hilfe der Vorrichtung gemäß der Erfindung können Büroklammern aus Draht mit integrierten Symbolen hergestellt werden, insbesondere so, dass immer die gleichen Außenkonturen entstehen, wenngleich die Innenkonturen den gewünschten Symbolen nachgebildet werden.At the lower end of the representations according to FIG. 2, further bending processes corresponding to FIG. 3 are carried out from top to bottom on the right. With the aid of the device according to the invention, paper clips can be made of wire with integrated symbols, in particular in such a way that the same outer contours always result, even though the inner contours are modeled on the desired symbols.
Es stehen viele Symbole zur Verfügung, die mit Hilfe der Vorrichtung der Erfindung gebogen werden können, insbesondere eine Standard-Büroklammer, bei welcher der Draht innerhalb einer Ebene gebogen wird und auch Biegevorgänge nur in einer Richtung erfolgen.There are many symbols available that can be bent using the device of the invention, in particular a standard paper clip, in which the wire is bent within one plane and also bending operations take place in one direction only.
Es sind Büroklammern denkbar mit sogenannten Hinterschneidungen, insbesondere können Biegungen rechtsinnig und linkssinnig durchgeführt werden. Schließlich kann auch ein Drahtgebilde hergestellt werden, bei welchen die einzelnen Drahtstücke in unterschiedlichen Ebenen zueinander zu liegen kommen.Paper clips with so-called undercuts are conceivable, in particular bends can be carried out to the right and to the left. Finally, a wire structure can also be produced in which the individual pieces of wire come to lie in different planes to one another.
Der minimale Radius, um den ein Drahtstück gebogen werden kann, ergibt sich aus der Dicke des Drahtstückes. Wäre dieser Radius kleiner als die Drahtdicke, so käme es zu Quetschungen des Materials und Querschnittsverringerungen an der Biegestelle, was im allgemeinen nicht erwünscht wird. Gebräuchliche Büroklammern haben eine Dicke von 0,9 mm, so dass sich als kleinster Radius 1 ,8 mm ergibt. Daraus wiederum folgt der minimale Platzbedarf für eine 180°- Biegung von 3,6 mm x 1 ,8 mm, also ca. 7 mm2.The minimum radius around which a piece of wire can be bent results from the thickness of the piece of wire. If this radius were smaller than the wire thickness, the material would be crushed and the cross-section reduced at the bending point, which is generally not desirable. Common paper clips have a thickness of 0.9 mm, so that the smallest radius is 1.8 mm. This in turn results in the minimum space requirement for a 180 ° bend of 3.6 mm x 1.8 mm, i.e. approximately 7 mm 2 .
Bei einer bevorzugten Ausführungsform der Erfindung ist ein elektrischer, pneumatischer oder hydraulischer Antrieb vorgesehen. Insbesondere aber ein Schrittmotor mit entsprechender Steuerelektronik. Hinzu könnte noch eine Steuereinrichtung eingesetzt werden, in der die einzelnen Biegeschritte gespeichert werden können, so dass beispielsweise einmal durchgeführte Biegevorgänge gespeichert werden können und dann entsprechend oft wiederholt werden könnten.In a preferred embodiment of the invention, an electrical, pneumatic or hydraulic drive is provided. In particular, however, a stepper motor with corresponding control electronics. In addition, a control device could be used in which the individual bending steps can be stored, so that, for example, once performed Bending processes can be saved and then repeated as often as necessary.
Darüber hinaus könnten die Biegestifte mit ihrer Scheibe auch aus ihrer Biegelage soweit herausgefahren werden, dass nach einem 180° Biegevorgang das Drahtstück frei kommt und danach ein weiterer über 180° hinausgehender Biegevorgang durchgeführt werden kann, nachdem die Biegestifte in ihre Arbeitslage zurückgeführt worden sind.In addition, the bending pins with their washer could also be moved out of their bending position to such an extent that after a 180 ° bending process the piece of wire is released and a further bending process beyond 180 ° can then be carried out after the bending pins have been returned to their working position.
Es liegt im Rahmen der Erfindung, nicht einzelne Drahtstücke zu verwenden, sondern Draht von der Rolle einzusetzen und erst nach dem Biegevorgang Stücke abzutrennen.It is within the scope of the invention not to use individual pieces of wire, but to insert wire from the roll and to separate pieces only after the bending process.
Prinzipiell erfolgt der Biegevorgang von Innen her nach Außen hin. Jedoch ist es auch möglich, kombinierte Biegevorgänge durchzuführen, beispielsweise ein Drahtstück bis zu einem bestimmten Bereich von der einen Seite her zu biegen und sodann weitere Biegevorgänge von der anderen Seite her auszuführen. In principle, the bending process takes place from the inside to the outside. However, it is also possible to carry out combined bending processes, for example to bend a piece of wire up to a certain area from one side and then to carry out further bending processes from the other side.

Claims

Patentanspruchclaim
Von Hand zu betätigende und einzurichtende Vorrichtung zum Biegen eines relativ kurzen Drahtstückes mit relativ geringer Drahtdicke mittels verstellbarer Biegeeinrichtung, dadurch gekennzeichnet, dass zum Biegen von Drahtstücken mit einer Länge von ca. 10 bis 20 cm und einer Dicke von ca. 1 mm zu Klammern ähnlichen Gebilden mindestens eine Biegeeinrichtung vorgesehen ist, deren Biegewinkel zwischen Drahtzuführung und Drahtaustritt von 0° bis ca. 180° verstellbar ist und auch Biegungen aus der Ebene heraus zulasst, in der das zugeführte Drahtstück sich erstreckt. Hand-operated and set-up device for bending a relatively short piece of wire with a relatively small wire thickness by means of an adjustable bending device, characterized in that for bending pieces of wire with a length of approx. 10 to 20 cm and a thickness of approx. 1 mm similar to clips Form at least one bending device is provided, the bending angle between the wire feed and wire exit from 0 ° to about 180 ° is adjustable and also allows bends out of the plane in which the supplied piece of wire extends.
PCT/EP2003/009388 2002-08-26 2003-08-25 Device for bending a piece of iron wire WO2004024367A1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE20213036.3 2002-08-26
DE20213036U DE20213036U1 (en) 2002-08-26 2002-08-26 Device for bending a wire

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102017011182A1 (en) * 2017-12-04 2019-06-06 Gunther Lu Method for forming wire in 2-dimensional structure

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1083212B (en) * 1957-03-01 1960-06-15 Ludwig Grefe Maschinenfabrik Process for bending and shaping mass-produced articles from wire
US3672408A (en) * 1970-11-12 1972-06-27 Mattel Inc Wire bending device
US3901292A (en) * 1974-06-19 1975-08-26 Gerrard & Co A J Bale tie end former
EP0396489A2 (en) * 1989-04-11 1990-11-07 Anagnostopoulos, Panaghiotis A. Additional bender of metal wire working machines for creation of three dimensional shapes (Forms)
NL9401473A (en) * 1994-09-09 1996-04-01 Holland Mechanics Bv Bending device

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1083212B (en) * 1957-03-01 1960-06-15 Ludwig Grefe Maschinenfabrik Process for bending and shaping mass-produced articles from wire
US3672408A (en) * 1970-11-12 1972-06-27 Mattel Inc Wire bending device
US3901292A (en) * 1974-06-19 1975-08-26 Gerrard & Co A J Bale tie end former
EP0396489A2 (en) * 1989-04-11 1990-11-07 Anagnostopoulos, Panaghiotis A. Additional bender of metal wire working machines for creation of three dimensional shapes (Forms)
NL9401473A (en) * 1994-09-09 1996-04-01 Holland Mechanics Bv Bending device

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102017011182A1 (en) * 2017-12-04 2019-06-06 Gunther Lu Method for forming wire in 2-dimensional structure

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