EP0860218B1 - Method and device for producing continuous spirals with closed polygon forms from wire, concrete steel or metal tube - Google Patents

Method and device for producing continuous spirals with closed polygon forms from wire, concrete steel or metal tube Download PDF

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Publication number
EP0860218B1
EP0860218B1 EP98600003A EP98600003A EP0860218B1 EP 0860218 B1 EP0860218 B1 EP 0860218B1 EP 98600003 A EP98600003 A EP 98600003A EP 98600003 A EP98600003 A EP 98600003A EP 0860218 B1 EP0860218 B1 EP 0860218B1
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Prior art keywords
wire
spiral
production
metal tube
arbitrary
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EP98600003A
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German (de)
French (fr)
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EP0860218A3 (en
EP0860218A2 (en
Inventor
Kostas Karagiannis
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EUROBEND SA
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EUROBEND SA
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21F—WORKING OR PROCESSING OF METAL WIRE
    • B21F27/00—Making wire network, i.e. wire nets
    • B21F27/12—Making special types or portions of network by methods or means specially adapted therefor
    • B21F27/121—Making special types or portions of network by methods or means specially adapted therefor of tubular form, e.g. as reinforcements for pipes or pillars
    • B21F27/122—Making special types or portions of network by methods or means specially adapted therefor of tubular form, e.g. as reinforcements for pipes or pillars by attaching a continuous stirrup to longitudinal wires
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21F—WORKING OR PROCESSING OF METAL WIRE
    • B21F27/00—Making wire network, i.e. wire nets
    • B21F27/12—Making special types or portions of network by methods or means specially adapted therefor
    • B21F27/121—Making special types or portions of network by methods or means specially adapted therefor of tubular form, e.g. as reinforcements for pipes or pillars
    • B21F27/122—Making special types or portions of network by methods or means specially adapted therefor of tubular form, e.g. as reinforcements for pipes or pillars by attaching a continuous stirrup to longitudinal wires
    • B21F27/124—Making special types or portions of network by methods or means specially adapted therefor of tubular form, e.g. as reinforcements for pipes or pillars by attaching a continuous stirrup to longitudinal wires applied by rotation

Definitions

  • the invention is a device for the production of continuous spirals with any, closed, polygonal, constant winding forms made of wire, reinforcing steel or a metallic tube, as well as the use of the device.
  • Spirals of this type are usually made manually or with the help of simple (automatic or non-automatic) bending devices used for Manufacture of rebar, clamps and other wire products be used.
  • This production method has the following disadvantages: Bending each corner of a spiral turn will advance the Wire stopped with the result that productivity remains low. Moreover pushes the advanced wire pushes the already produced turns the spiral until due to friction and the weight of the Plastic deformations of the turns already produced enter. Because of this, the dimensions are this way produced spirals, limited.
  • the aim of the invention is to solve the problems described above by it offers a simple and quick method that is automated manufacturing of quality spirals made of wire, reinforcing steel or a metallic tube allowed.
  • the invention relates to a device according to claim 1 which is automatic Production of spirals from wire, reinforcing steel or a metallic pipe makes possible to offer and the simple in the construction, reliable in the Functionality that is high in productivity and easy to use.
  • the invention provides a method of making spirals arbitrary, closed, polygonal, constant forms of turns Wire, reinforcing steel or a metallic tube (1), which results in is characterized as first of all the winding of the wire, Reinforcing steel or metallic pipe, under sufficient tension, on suitable arranged bending rods (7), suitably mounted on a rotating device are required.
  • the method requires bending every single corner of the Spiral turns simultaneously with the rotation, the ejecting of the already produced turns of at least one diameter of the wire, Reinforcing steel or the metallic pipe (1), so that the production level for the next one to the producing turn becomes free Bending tools of the bending device (6) happens so that the Production level for obstacle-free winding of wire, reinforcing steel or of the metallic tube (1) is released.
  • the invention provides this device, the this method is implemented.
  • the method in the sense of the invention calls for the design of everyone single corner of the winding form a bending device (6), that is, if the turns of the spiral have a triangular shape if they have one Rectangular shape have four bending devices, etc.
  • the wire (1) comes from a reel (13) mounted on a reel and is pulled from the bars (7) with the help of a straightening unit (12) and directed.
  • the bars are part of four bending units (6) on one store rotating device.
  • the Wire (1) is wound around the rods (7) and is turned on simultaneously with the rotation each corner of the turn is bent by the corresponding bending unit (6).
  • the turns are produced with the help of an ejector (11) pushed outside the production level so that at that level Space for the production of the next turn is created.
  • the method described above in the sense of the invention can be by implement the device described in detail below.
  • the single ones Functions are monitored by a computer-controlled control unit and controlled.
  • the wire (1) is located on a reel (13) Coil and is from the rods (7) around which it is wrapped by a Straightening unit (12) in which it is judged.
  • a Straightening unit (12) in which it is judged.
  • On the spinning Four bending units (6) are mounted on the device (drawing 1), two each each bar (4) and (5) on either side of the center. You can click on the Beams (4) and (5) can be moved and placed in a suitable position Be secured with the help of suitable security mechanisms.
  • the Beams (4) and (5) are in turn on the beam (3) with plain bearings (15, 16) stored accordingly and can be moved to it. In this way can each bending unit (6) on any coordinate point of the corresponding quarter of the production level of the spiral windings be positioned and thus a quick and easy adjustment of the Device according to the desired shape of the winding producing spiral.
  • the two bending pins (8, 9) are extended above the production area and only bend when the piston (10) presses them onto the wire, reinforcing steel or metal pipe (1) to be bent.
  • the bending pins (8, 9) are moved below the production level so that they cannot hit the drawn wire, reinforcing steel or the metallic tube (1) during the winding.
  • the displacement of the last spiral produced outside the production level takes place with the aid of the ejection device (11), which is suitably synchronized with the piston (10) of the bending device (6).
  • the piston (10) of the bending pins (8, 9 ) of the bending unit (6) from position ( ⁇ ) to position ( ⁇ ) and the piston of the ejection device (11) from position ( ⁇ ) to position ( ⁇ ).
  • the rods (7) incline slightly in a suitable manner so that the turns (14) which have already been produced can be moved away from the production level without difficulty.
  • the two bending pins (8, 9) are arranged in a suitable manner so that they move simultaneously and parallel to each other and to the bisector of the angle of the winding corner under under production, from the initial position A to position C (drawing 2), whereby the wire (1) is bent through an angle ⁇ ⁇ 90 ° .
  • the pistons (10) of the bending units (6) and the pistons of the ejection devices (11) are driven hydraulically.
  • the hydraulic energy comes via the axis of rotation (2) through a distributor (17).
  • the valves that control the pistons are checked with the aid of suitable rings (21), which are located on the axis of rotation (2) and directly actuate the control switches (22).
  • the movement of the axis of rotation (2) is carried out with the aid of a hydraulic or electric motor (20) of constant or variable speed.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Wire Processing (AREA)
  • Reinforcement Elements For Buildings (AREA)

Abstract

The method entails using a rotatable device, on which the bending bars (6) are suitably arranged (one for each corner of the winding of the spiral being produced). A bar (7) of suitable length and cross-section is used and an ejection device pushes away the already produced windings of the spiral (14) in a suitable manner from the production plane around at least a diameter of the wire, concrete steel or the metallic tube (1) per rotation of the rotatable device. In this way, the production plane is cleared of the already produced windings. The bending pins (8,9) of the bending units (6) are arranged in a suitable manner so that they can move simultaneously and parallel to each other for angle-halving of the corners of the spiral winding during production.

Description

Bei der Erfindung handelt es sich um eine Vorrichtung zur Produktion von kontinuierlichen Spiralen mit beliebigen, geschlossenen, polygonalen, konstanten Windungsformen aus Draht, Betonstahl oder einem metallischem Rohr, sowle um die Verwendung der Vorrichtung.The invention is a device for the production of continuous spirals with any, closed, polygonal, constant winding forms made of wire, reinforcing steel or a metallic tube, as well as the use of the device.

Spiralen dieser Art werden in vielen Gebieten verwendet. Zum Beispielist es bekannt, daß Spiralen mit geschlossenen polygonalen, hauptsächlich aber mit rechtwinkligen Windungsformen, die aus Draht oder Betonstahl hergestellt werden, Anwendung in den Armierungen von Stahlbeton- Konstruktionen und Elementen finden, wie Tragsäulen und Balken, Kanalisationsrohren großer Abmessungen und Ähnliches. (siehe z.B. JP-A-58 154 429).Spirals of this type are used in many areas. For example, it is known that spirals with closed polygonal, but mainly with right-angled coil shapes made from wire or rebar be used in the reinforcement of reinforced concrete structures and Find elements such as supporting columns and beams, large sewer pipes Dimensions and the like. (see e.g. JP-A-58 154 429).

Spiralen dieser Art werden gewöhnlich manuell oder mit Hilfe von einfachen (automatischen oder nichtautomatischen) Biegevorrichtungen,die zur Herstellung von Betonstahl- Bügel, Klammern und anderen Produkten aus Draht verwendet werden. Diese Produktionsmethode hat folgende Nachteile: zur Biegung jeder einzelnen Ecke einer Spiralwindung wird der Vorschub des Drahtes gestoppt mit der Folge, daß die Produktivität niedrig bleibt. Außerdem schiebt der vorgeschobene Draht schiebt die bereits produzierten Windungen der Spirale, bis aufgrund von Reibungen und des Eigengewichtes des Produktes plastische Verformungen der bereits produzierten Windungen eintreten. Aus diesem Grund sind die Abmessungen, der auf diese Weise produzierten Spiralen, begrenzt.Spirals of this type are usually made manually or with the help of simple (automatic or non-automatic) bending devices used for Manufacture of rebar, clamps and other wire products be used. This production method has the following disadvantages: Bending each corner of a spiral turn will advance the Wire stopped with the result that productivity remains low. Moreover pushes the advanced wire pushes the already produced turns the spiral until due to friction and the weight of the Plastic deformations of the turns already produced enter. Because of this, the dimensions are this way produced spirals, limited.

Es ist offensichtlich, daß diese Produktionsmethode schlechte Produktqualität zur Folge hat, da nach einer kleinen Anzahl von Windungen plastische Verformungen aufgrund des Eigengewichtes des Produktes eintreten, die umso stärker werden je größer das Gewicht und die Abmessungen der Spirale sind, und niedriege Produktivität nach sich zieht, da der Vorschub und das Biegen des Drahtes nacheinander und nicht gleichzeitig stattfind.It is obvious that this method of production is bad Product quality results because after a small number of turns plastic deformations occur due to the weight of the product, the bigger the weight and dimensions of the Are spiral, and low productivity entails, since the feed and the wire is bent sequentially and not simultaneously.

Ziel der Erfindung ist die oben beschriebenen Probleme zu lösen, indem sie eine einfache und schnelle Methode bietet, die die automatisierte Herstellung von qualitativen Spiralen aus Draht, Betonstahl oder einem metallischen Rohr erlaubt.The aim of the invention is to solve the problems described above by it offers a simple and quick method that is automated manufacturing of quality spirals made of wire, reinforcing steel or a metallic tube allowed.

Gegenstand der Erfindung ist eine Vorrichtung gemäß Anspruch 1 die die automatische Herstellung von Spiralen aus Draht, Betonstahl oder einem metallischen Rohr möglich macht, zu bieten und die einfach in der Konstruktion, zuverlässig in der Funktionalität, mit hoher Produktivität und leicht zu bedienen ist.The invention relates to a device according to claim 1 which is automatic Production of spirals from wire, reinforcing steel or a metallic pipe makes possible to offer and the simple in the construction, reliable in the Functionality that is high in productivity and easy to use.

Die Erfindung bietet eine Methode zur Herstellung von Spiralen mit beliebigen, geschlossenen, polygonalen, konstanten Windungsformen aus Draht, Betonstahl oder einem metalischem Rohr (1), die dadurch gekennzeichnet ist, daß sie als aller erstes die Wicklung des Drahtes, Betonstahls oder metallischen Rohres, unter genügend Spannung, auf geeignet angeordneten Biegestäben (7), die auf einer Drehvorrichtung geeignet gelagert sind, fordert.. Ferner fordert die Methode das Biegen jeder einzelnen Ecke der Spiralwindungen gleichzeitig mit der Drehung, das Ausstoßen der bereits produzierten Windungen um mindenstens einen Durchmesser des Drahtes, Betonstahls oder des metallischen Rohres (1), so daß die Produktionsebene für die nächste zur produzierenden Windung frei wird.Das Zurückfahren der Biegewerkzeuge der Biegevorrichtung (6)geschieht so, daß die Produktionsebene für das hindernisfreie Wickeln des Drahtes, Betonstahls oder des matallischen Rohres (1) frei wird. Die Erfindung bietet diese Vorrichtung, die diese Methode verwiklicht.The invention provides a method of making spirals arbitrary, closed, polygonal, constant forms of turns Wire, reinforcing steel or a metallic tube (1), which results in is characterized as first of all the winding of the wire, Reinforcing steel or metallic pipe, under sufficient tension, on suitable arranged bending rods (7), suitably mounted on a rotating device are required. Furthermore, the method requires bending every single corner of the Spiral turns simultaneously with the rotation, the ejecting of the already produced turns of at least one diameter of the wire, Reinforcing steel or the metallic pipe (1), so that the production level for the next one to the producing turn becomes free Bending tools of the bending device (6) happens so that the Production level for obstacle-free winding of wire, reinforcing steel or of the metallic tube (1) is released. The invention provides this device, the this method is implemented.

Ferner fordert die Methode im Sinne der Erfindung zur Gestaltung jeder einzelnen Ecke der Windungsform eine Biegevorrichtung (6), das heißt, wenn die Windungen der Spirale eine Dreiecksform haben drei, wenn sie eine Rechtwinklige Form haben vier Biegevorrichtungen usw.Furthermore, the method in the sense of the invention calls for the design of everyone single corner of the winding form a bending device (6), that is, if the turns of the spiral have a triangular shape if they have one Rectangular shape have four bending devices, etc.

Die Merkmale der Vorrichtung im Sinne der Erfindung werden verständlich durch die unten stehende Beschreibung einer von deren möglichen Realisierungen. Eine solche Realisierung wird unten mit Bezügen auf Zeichnungen dargestellt, die nur diese eine besondere Realisierung der Vorrichtung zur Produktion von kontinuierlichen Spiralen mit beliebigen geschlossenen, polygonalen, konstanten Windungsformen aus Draht, Betonstahl oder einem metallischen Rohr (1), beschreiben.:

  • Zeichnung 1 stellt eine Vorderansicht der Wickelvorrichtung des Drahtes und der Biegevorrichtungen zur Produktion von Spiralen mit konstanten rechtwinkligen Windungsformen im Sinne der Erfindung dar.
  • Zeichnung 2 stellt eine Biegevorrichtung im Sinne der Erfindung dar.
  • Zeichnung 3 ist eine schematisch dargestellte Vorderansicht der Vorrichtung im Sinne der Erfindung.
  • Zeichnung 4 ist eine schematisch dargestellte Draufsicht der Vorrichtung im Sinne der Erfindung.
  • Zeichnung 5α zeigt schematisch ein Beispiel der Vorrichtung für Spiralen mit oktagonalen konstanten Windungsformen, im Sinne der Erfindung.
  • Zeichnung 5β zeigt schematisch ein Beispiel der Vorrichtung für Spiralen mit dreieckigen konstanten Windungsformen, im Sinne der Erfindung.
  • Zeichnung 5γ zeigt schematisch ein Beispiel der Vorrichtung für Spiralen mit rechtwinkligen konstanten Windungsformen aus einem metallischen Rohr, im Sinne der Erfindung.
    • The features of the device in the sense of the invention can be understood from the description below of one of its possible implementations. Such an implementation is shown below with reference to drawings, which only describe this particular implementation of the device for the production of continuous spirals with any closed, polygonal, constant winding forms made of wire, reinforcing steel or a metallic tube (1):
  • Drawing 1 shows a front view of the winding device of the wire and the bending devices for the production of spirals with constant rectangular winding shapes in the sense of the invention.
  • Drawing 2 shows a bending device in the sense of the invention.
  • Drawing 3 is a schematic front view of the device according to the invention.
  • Drawing 4 is a schematically represented top view of the device according to the invention.
  • Drawing 5α schematically shows an example of the device for spirals with octagonal constant winding forms, in the sense of the invention.
  • Drawing 5β shows schematically an example of the device for spirals with triangular constant winding forms, in the sense of the invention.
  • Drawing 5γ schematically shows an example of the device for spirals with right-angled constant winding forms made of a metallic tube, in the sense of the invention.

    • Der Draht (1) kommt aus einer auf einer Haspel (13) gelagerten Spule nd und wird von den Stäben (7) mit Hilfe einer Richteinheit (12) gezogen und gerichtet. Die Stäbe sind Teil von vier Biegeeinheiten (6), die auf einer drehenden Vorrichtung lagern. Während einer Drehung des Systems wird der Draht (1) um die Stäbe (7) gewickelt und wird gleichzeitig mit der Drehung an jeder Ecke der Windung von der korrespondierenden Biegeeinheit (6) gebogen. Danach werden die produzierten Windungen mit Hilfe einer Abwurfvorrichtung (11) außerhalb der Produktionsebene geschoben ,so daß auf dieser Ebene Platz für die Produktion der nächsten Windung geschaffen wird.The wire (1) comes from a reel (13) mounted on a reel and is pulled from the bars (7) with the help of a straightening unit (12) and directed. The bars are part of four bending units (6) on one store rotating device. During a rotation of the system the Wire (1) is wound around the rods (7) and is turned on simultaneously with the rotation each corner of the turn is bent by the corresponding bending unit (6). Then the turns are produced with the help of an ejector (11) pushed outside the production level so that at that level Space for the production of the next turn is created.

    Die oben beschriebene Methode im Sinne der Erfindung läßt sich durch die Vorrichtung, die unten detailliert beschrieben wird, realisieren. Die einzelnen Funktionen werden von einer computergesteuerten Kontrolleinheit überwacht und gesteuert. The method described above in the sense of the invention can be by implement the device described in detail below. The single ones Functions are monitored by a computer-controlled control unit and controlled.

    Der Draht (1) befindet sich auf einer an einer Haspel (13) gelagerten Spule und wird von den Stäben (7), um die er gewickelt wird, durch eine Richteinheit (12) gezogen, in der er gerichtet wird. Auf der sich drehenden Vorrichtung sind vier Biegeeinheiten (6) gelagert (Zeichnung 1), je zwei auf jedem Balken (4) und (5) beiderseits des Mittelpunktes. Sie können auf den Balken (4) und (5) verschoben werden und an einer geeigneten Position mit Hilfe von geeigneten Sicherungsmechanismen fest gesichert werden. Die Balken (4) und (5) sind ihrerseits auf dem Balken (3) mit Gleitlagern (15,16) entsprechend gelagert und können auf ihn verschoben werden. Auf diese Weise kann jede Biegeeinheit (6) auf jeden beliebigen Koordinatenpunkt des entsprechenden Viertels der Produktionsebene der Spiralwindungen fest positioniert werden und somit wird eine schnelle und einfache Einstellung der Vorrichtung entsprechend der jeweils gewünschten Windungsform der zur produzierenden Spirale gewährleistet.The wire (1) is located on a reel (13) Coil and is from the rods (7) around which it is wrapped by a Straightening unit (12) in which it is judged. On the spinning Four bending units (6) are mounted on the device (drawing 1), two each each bar (4) and (5) on either side of the center. You can click on the Beams (4) and (5) can be moved and placed in a suitable position Be secured with the help of suitable security mechanisms. The Beams (4) and (5) are in turn on the beam (3) with plain bearings (15, 16) stored accordingly and can be moved to it. In this way can each bending unit (6) on any coordinate point of the corresponding quarter of the production level of the spiral windings be positioned and thus a quick and easy adjustment of the Device according to the desired shape of the winding producing spiral.

    Die kontinuierliche Produktion der Spirale mit einer konstanten rechtwinkligen Windungsform, fordert ohne daß das Einwickeln des Drahtes während des Biegens unterbrochen wird, vier Biegeeinheiten (6) d.h. vier Stäbe (7) mit jeweils zwei parallel zu einander sich bewegenden Biegestiften (8, 9).The continuous production of the spiral with a constant right-angled winding shape, requires no wrapping of the wire interrupted during bending, four bending units (6) i.e. four bars (7) each with two bending pins (8, 9) moving parallel to one another.

    Die Biegeeinheiten (6) bestehen 1.aus einem zentralen Stab (7) geeigneter Länge, Querschnittsform und Durchmessers, welcher den Biegeradius r der Windungecken der Spirale festlegt, 2.aus zwei Biegestiften (8, 9), die schließlich den Winkel =90° formen (Zeichnung 2) und3.aus einer Abwurfvorrichtung (11). Die zwei Biegestifte (8, 9) werden oberhalb des Produktionsraumes ausgefahren und biegen nur wenn der Kolben (10) sie auf den zu biegenden Draht, Betonstahl oder das metallische Rohr (1) drückt. Beim Zurückfahren des Kolbens (10) werden die Biegestifte (8, 9) unterhalb der Produktionsebene gefahren, so daß sie den gezogenen Draht, Betonstahl oder das metallische Rohr (1) während des Wickelns nicht treffen können. Die Verschiebung der zuletzt produzierten Windung der Spirale außerhalb der Produktionsebene findet mit Hilfe der Auswurfvorrichtung (11), die auf geeignete Weise mit dem Kolben (10) der Biegevorrichtung (6) synchronisiert ist Zusammenfassend beginnt der Kolben (10) der Biegestifte (8, 9) der Biegeeinheit (6) von der Position (α) bis zur Position (β) zu wirken und der Kolben der Auswurfvorrichtung (11) von der Position (γ) bis zur Position (δ). Die Stäbe (7) neigen sich leicht auf geeigneter Weise nach innen, so daß das Verschieben der bereits produzierten Windungen (14) weg von der Produktionsebene ohne Schwierigkeit möglich wird. Die zwei Biegestifte (8, 9) sind auf geeignete Weise angeordnet, so daß sie sich gleichzeitig und parallel zueinander und zur Winkelhalbierenden des Winkels der unter Produktion sich befindlichen Windungsecke , von der Anfangsposition A zur Position C (Zeichnung 2) sich bewegen, wobei der Draht (1) um einen Winkel <90° gebogen wird. Die Differenz -1 entspricht der elastischen Rückstellung des Drahtes, Betonstahls oder des metallischen Rohres (1) wegen seines plastischelastischen Verhaltens. Auf diese Weise wird nach der elastischen Rückstellung des Drahtes, Betonstahls oder des metallischen Rohres (1) der gewünschte Winkel =90° geformt. Die Kolben (10) der Biegeeinheiten (6) sowie die Kolben der Auswurfvorrichtungen (11) werden hydraulisch angetrieben. Die hydraulische Energie (Öldruck) kommt über die Drehachse (2) durch einen Verteiler (17). Die Kontrolle der Ventile, die die Kolben steuern geschieht mit Hilfe von geeigneten Ringen (21), die sich auf der Drehachse (2) befinden und direkt die Kontrollschalter (22) betätigen. Die Bewegung der Drehachse (2) geschiet mit Hilfe eines hydraulischen oder elektrischen Motors (20) konstanter oder variabler Drehzahl.The bending units (6) 1. consist of a central rod (7) of suitable length, cross-sectional shape and diameter, which defines the bending radius r of the spiral corners of the spiral, 2. of two bending pins (8, 9), which finally have the angle  = 90 ° form (drawing 2) and 3. from a discharge device (11). The two bending pins (8, 9) are extended above the production area and only bend when the piston (10) presses them onto the wire, reinforcing steel or metal pipe (1) to be bent. When the piston (10) moves back, the bending pins (8, 9) are moved below the production level so that they cannot hit the drawn wire, reinforcing steel or the metallic tube (1) during the winding. The displacement of the last spiral produced outside the production level takes place with the aid of the ejection device (11), which is suitably synchronized with the piston (10) of the bending device (6). In summary, the piston (10) of the bending pins (8, 9 ) of the bending unit (6) from position (α) to position (β) and the piston of the ejection device (11) from position (γ) to position (δ). The rods (7) incline slightly in a suitable manner so that the turns (14) which have already been produced can be moved away from the production level without difficulty. The two bending pins (8, 9) are arranged in a suitable manner so that they move simultaneously and parallel to each other and to the bisector of the angle of the winding corner unter under production, from the initial position A to position C (drawing 2), whereby the wire (1) is bent through an angle  <90 ° . The difference - 1 corresponds to the elastic recovery of the wire, reinforcing steel or the metallic pipe (1) because of its plastic-elastic behavior. In this way, the desired angle  = 90 ° is formed after the elastic resetting of the wire, reinforcing steel or the metallic pipe (1). The pistons (10) of the bending units (6) and the pistons of the ejection devices (11) are driven hydraulically. The hydraulic energy (oil pressure) comes via the axis of rotation (2) through a distributor (17). The valves that control the pistons are checked with the aid of suitable rings (21), which are located on the axis of rotation (2) and directly actuate the control switches (22). The movement of the axis of rotation (2) is carried out with the aid of a hydraulic or electric motor (20) of constant or variable speed.

    In der Praxis hakt der Bediener der Maschine das Drahtende an eine auf einen zwischen den Positionen (α) und (β) befindlichen Stab (7) befestigten geeigneten Scheibe (19), ein. Anschließend schaltet er die Maschine ein, die Drehvorrichtung dreht sich und der Draht (1) wird um die Stäbe (7) gewickelt während gleichzeitig die Ecken der Windungen nacheinander von den entsprechenden Biegeeinheiten (6) geformt werden, wie wir oben beschrieben haben. Es muß notiert werden, daß im Gegensatz zu den gewöhnlichen Biegemaschinen, die Vorrichtung im Sinne der Erfindung keine Messvorrichtung für den Draht (1) benötigt, da die Längen der Seiten der Spiralwindungen von der Position der Stäbe (7) festgelegt sind. Außerdem ist keine Vorschubvorrichtung nötig, da der Draht, Betonstahl oder das metallische Rohr (1) unter geeigneten Spannung von den drehenden Stäben (7) gezogen wird. Somit sind die Investitionskosten der Vorrichtung niedrig. Der Draht (1) wird mit Hilfe einer geeigneten Schere manuell oder automatisch geschnitten, nachdem die gewünschte Spirale produziert worden ist. Die fertige Spirale (14) wird von den Stäben (7) entnommen und die Produktionsprozedur wird, erst nachdem , die Positionen der Stäbe (7) neu festgelegt werden, wiederholt. Natürlich kann das Neupositionieren der Stäbe (7) manuell oder auch automatisch mit Hilfe geeigneter Motoren stattfinden. Durch die Verwendung von Biegestiften (8, 9) geeigneter Abmessungen kann man gleichzeitig mehr als eine gleiche Spirale. produzieren. In diesem Fall wird eine entsprechende Anzahl von Scheiben (19) und Haspeln (13) verwendet.
    Die Vorteile der Erfindung sind:

  • Hohe Produktivität. Das Biegen der Ecken findet während der Drehung des Systems statt, ohne daß das Ziehen des Drahtes unterbrochen werden muß Somit ist die Produktionsgeschwindigkeit hoch mit gleichzeitig hoher Qualität. der Spirale.
  • Minimaler Zeitaufwand, bei Neudefinierung der zu produzierenden Spirale,, aufgrund des leichten und schnellen Einstellens der Vorrichtung zur Produktion von Spiralen mit anderen Windungsformen.
  • Paralelle Produktion von zwei oder mehr gleicher Spiralen .
  • Niedrige Investitionskosten, da Mess- und Vorschubvorrichtungen für den Draht, Betonstahl oder das metallische Rohr (1) nicht benötigt werden.
  • Einfache und robuste Konstruktion der Vorrichtung, aufgrund der Realisierung der oben genannten einfachen Methode.
  • Insbesondere hängt die Zeitersparnis, die erzielt wird, damit zusammen, daß das Biegen des Drahtes (1) gleichzeitig mit dem Einwickeln stattfindet, ohne daß die Drehbewegung der Drehachse (2) unterbrochen oder ihre Geschwindigkeit reduziert wird.
  • Schließlich erlauben die Methode und die Vorrichtung im Sinne der Erfindung die einfache und schnelle Produktion von kontinuierlichen Spiralen mit beliebigen geschlossenen polygonalen konstanten Windungsformen aus Draht, Betonstahl oder einem metallischen Rohr.
  • Bei der praktischen Realisierung der Erfindung entsprechen die verwendeten Materialien, deren Form und Abmessungen den Anforderungen.
  • Bei jedem der folgenden Ansprüche, überall dort wo technische Charakteristika erwähnt werden, sind diese von beiliegenden Zeichnungen mit verweisenden Zahlen gekennzeichnet, die nur dem Zweck des besseren Verständnisses der Ansprüche dienen.Sie können auf keinen Fall die Betrachtung jedes Elementes, das durch diese Zahlen anhand von Beispielen wieder erkannt wird, einschränken.
    • In practice, the operator of the machine hooks the wire end onto a suitable disc (19) attached to a rod (7) located between positions (α) and (β). Then he turns on the machine, the rotating device rotates and the wire (1) is wound around the bars (7) while at the same time the corners of the turns are successively formed by the corresponding bending units (6), as we have described above. It must be noted that, in contrast to the usual bending machines, the device according to the invention does not require a measuring device for the wire (1), since the lengths of the sides of the spiral turns are determined by the position of the bars (7). In addition, no feed device is necessary, since the wire, reinforcing steel or the metallic tube (1) is pulled from the rotating rods (7) under suitable tension. Thus, the investment cost of the device is low. The wire (1) is cut manually or automatically using suitable scissors after the desired spiral has been produced. The finished spiral (14) is removed from the bars (7) and the production procedure is repeated only after the positions of the bars (7) have been redefined. Of course, the repositioning of the rods (7) can take place manually or automatically with the aid of suitable motors. By using bending pins (8, 9) of suitable dimensions, more than one identical spiral can be made at the same time. to produce. In this case, a corresponding number of disks (19) and reels (13) are used.
    The advantages of the invention are:
  • High productivity. The bending of the corners takes place during the rotation of the system without having to interrupt the pulling of the wire. Thus the production speed is high with high quality at the same time. the spiral.
  • Minimal expenditure of time when redefining the spiral to be produced, because of the easy and quick setting of the device for producing spirals with other winding forms.
  • Parallel production of two or more identical spirals.
  • Low investment costs, since measuring and feed devices for the wire, reinforcing steel or the metallic pipe (1) are not required.
  • Simple and robust construction of the device, due to the implementation of the simple method mentioned above.
  • In particular, the time saving which is achieved is related to the fact that the bending of the wire (1) takes place simultaneously with the wrapping, without the rotational movement of the axis of rotation (2) being interrupted or its speed being reduced.
  • Finally, the method and the device according to the invention allow the simple and rapid production of continuous spirals with any closed polygonal constant winding forms made of wire, reinforcing steel or a metallic tube.
  • In the practical implementation of the invention, the materials used, their shape and dimensions correspond to the requirements.
  • In each of the following claims, wherever technical characteristics are mentioned, these are marked with reference numbers by the attached drawings, which are only for the purpose of better understanding the claims. You can on no account consider each element represented by these numbers be recognized by examples.

    • Claims (8)

    1. Arrangement for production of continuous, rigid, spiral coils (stirrups) of arbitrary, closed-form, polygonal geometries made of wire, rod or metal tube (1) of arbitrary cross-section area, which is characterised by a rotary mechanism where bending mechanisms (6) are properly arranged, one for each angle of the spiral stirrup, where each bending mechanism disposes two pins (8, 9), one stake (7) of suitable length and diameter and one ejector (11), which ejects appropriately the already made spiral coils (14) for a minimum of one diameter of the wire, rod or metal tube (1) per rotation of the said rotary mechanism, so that the produced spiral coils are released from the working plane.
    2. Arrangement for production of continuous, rigid, spiral coils (stirrups) of arbitrary, closed-form, polygonal geometries made of wire, rod or metal tube (1) of arbitrary cross-section area, according to Claim 1, which is characterised by installation and support of the bending mechanisms (6) on the said rotary mechanism in such a manner that each one of them can be placed on any arbitrary coordinate of the corresponding quarter on the spiral working plane.
    3. Arrangement for production of continuous, rigid, spiral coils (stirrups) of arbitrary, closed-form, polygonal geometries made of wire, rod or metal tube (1) of arbitrary cross-section area, according to Claim 1, which is characterised by arrangement of the pins (8, 9) of the bending mechanisms (6) in such a manner that they can move simultaneously, parallel to each other and parallel to the bisector of the angle of the spiral stirrup in production.
    4. Arrangement for production of continuous, rigid, spiral coils (stirrups) of arbitrary, closed-form, polygonal geometries made of wire, rod or metal tube (1) of arbitrary cross-section area, according to Claim 1, which is characterised by arrangement of the pins (8, 9) of the bending mechanisms (6) in such a manner that they can be transferred underneath the spiral coil working plane whenever they are not bending.
    5. Arrangement for production of continuous, rigid, spiral coils (stirrups) of arbitrary, closed-form, polygonal geometries made of wire, rod or metal tube (1) of arbitrary cross-section area, according to Claim 1, which is characterised by movement of the ejector (11) in a simultaneous and coordinated manner with the pins (8, 9) of the bending mechanism (6).
    6. Arrangement for production of continuous, rigid, spiral coils (stirrups) of arbitrary, closed-form, polygonal geometries made of wire, rod or metal tube (1) of arbitrary cross-section area, according to Claim 1, which is characterised by configuration of the pins (8, 9) of the bending mechanisms (6) in such a manner that they can process more than one wire, rod or metal tube (1), simultaneously.
    7. Implementation of arrangement according to Claims 1-6, for production of continuous, rigid, spiral coils (stirrups) of arbitrary, closed-form, polygonal geometries made of wire, rod or metal tube (1) of arbitrary cross-section area, where at first the wire, rod or metal tube (1) are required to be winded around properly arranged stakes (7), under appropriate stress, and the simultaneous formation of the spiral stirrup angles, through consecutive bendings, and then the release of each formed spiral stirrup from the working plane.
    8. Implementation of arrangement according to Claim 7, where the release of each formed spiral stirrup from the working plane is done after complete formation of each stirrup, so that available area is disposed on the working plane for production of the next stirrup.
    EP98600003A 1997-02-14 1998-01-19 Method and device for producing continuous spirals with closed polygon forms from wire, concrete steel or metal tube Expired - Lifetime EP0860218B1 (en)

    Applications Claiming Priority (2)

    Application Number Priority Date Filing Date Title
    GR97010053 1997-02-14
    GR97100053 1997-02-14

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    EP0860218A2 EP0860218A2 (en) 1998-08-26
    EP0860218A3 EP0860218A3 (en) 2002-01-02
    EP0860218B1 true EP0860218B1 (en) 2004-10-13

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    Application Number Title Priority Date Filing Date
    EP98600003A Expired - Lifetime EP0860218B1 (en) 1997-02-14 1998-01-19 Method and device for producing continuous spirals with closed polygon forms from wire, concrete steel or metal tube

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    EP (1) EP0860218B1 (en)
    AT (1) ATE279274T1 (en)
    DE (1) DE59812100D1 (en)
    GR (1) GR1002855B (en)

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    CN100450661C (en) * 2005-11-22 2009-01-14 润弘精密工程事业股份有限公司 Spiral steel bar forming device and method

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    CN103962479B (en) * 2014-05-04 2016-01-20 中国人民解放军军械工程学院 A kind of metal-rubber blank laying apparatus
    CN103949568B (en) * 2014-05-07 2016-01-20 中国人民解放军军械工程学院 Metal-rubber blank braiding apparatus and special cover plate mechanism for auto
    CN104259349B (en) * 2014-08-13 2016-06-15 武汉三江航天远方科技有限公司 Metal damper blank wind
    CN107671150B (en) * 2017-10-27 2024-05-31 东莞市健耀烨电子科技有限公司 Automatic feeding and bending machine and method
    CN107812856B (en) * 2017-11-24 2019-08-02 林传醒 A kind of apparatus for bending that can make different size rectangle reinforcing bar

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    FR1111841A (en) * 1954-10-01 1956-03-05 Algerienne Des Entpr S Chaufou Reinforced concrete reinforcing machine
    GB1322391A (en) * 1970-01-09 1973-07-04 British Steel Corp Metallic cage structure and apparatus for manufacturing same hot water generator
    DE2009509C3 (en) * 1970-02-28 1981-10-22 Ed. Züblin AG, 7000 Stuttgart Machine for the continuous production of reinforcement cages for posts, masts or the like. made of reinforced concrete
    CH602215A5 (en) * 1976-02-26 1978-07-31 Saw Spannbetonwerk Ag Zweignie
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    EP0860218A3 (en) 2002-01-02
    ATE279274T1 (en) 2004-10-15
    DE59812100D1 (en) 2004-11-18
    GR1002855B (en) 1998-02-06
    EP0860218A2 (en) 1998-08-26

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