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EP0333695A2 - Apparatus for removing wire straps from a strap-bending machine - Google Patents

Apparatus for removing wire straps from a strap-bending machine Download PDF

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Publication number
EP0333695A2
EP0333695A2 EP89890061A EP89890061A EP0333695A2 EP 0333695 A2 EP0333695 A2 EP 0333695A2 EP 89890061 A EP89890061 A EP 89890061A EP 89890061 A EP89890061 A EP 89890061A EP 0333695 A2 EP0333695 A2 EP 0333695A2
Authority
EP
European Patent Office
Prior art keywords
catch
arm
bending
bending plane
star
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
EP89890061A
Other languages
German (de)
French (fr)
Other versions
EP0333695A3 (en
EP0333695B1 (en
Inventor
Gerhard Dr.Dipl.-Ing. Ritter
Klaus Dipl.-Ing. Ritter
Gerhard Dipl.-Ing. Schmidt
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.)
EVG Entwicklungs und Verwertungs GmbH
Original Assignee
EVG Entwicklungs und Verwertungs GmbH
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 EVG Entwicklungs und Verwertungs GmbH filed Critical EVG Entwicklungs und Verwertungs GmbH
Publication of EP0333695A2 publication Critical patent/EP0333695A2/en
Publication of EP0333695A3 publication Critical patent/EP0333695A3/en
Application granted granted Critical
Publication of EP0333695B1 publication Critical patent/EP0333695B1/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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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
    • B21F1/00—Bending wire other than coiling; Straightening wire
    • 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
    • B21D11/00—Bending not restricted to forms of material mentioned in only one of groups B21D5/00, B21D7/00, B21D9/00; Bending not provided for in groups B21D5/00 - B21D9/00; Twisting
    • B21D11/10—Bending specially adapted to produce specific articles, e.g. leaf springs
    • B21D11/12—Bending specially adapted to produce specific articles, e.g. leaf springs the articles being reinforcements for concrete

Definitions

  • the invention relates to a device for removing wire brackets from a bow bending machine, with a rotatable catch arm star that can be moved towards the inclined bending plane of the bending machine, the catch arms of which can be rotated one after the other for receiving a predetermined number of wire brackets into the catch position, in which they counter against one in the area of the bending and severing tools located catch point in the bending plane.
  • the tentacle star is mounted on a carriage which can be moved on the floor.
  • This design has the disadvantage that the positioning of the tent arm star relative to the bending tools must be done by hand and is accordingly inaccurate and that there is also the risk of the tent arm star being displaced from the predetermined position as a result of the brackets causing the bracket to jump off when the finished bracket is separated Powers.
  • the invention aims to provide a device of the type mentioned in the introduction, which avoids the disadvantages described and ensures an exact setting of the tentacles on the catching point as well as a safe and trouble-free reception of the dropped wire bracket.
  • the device according to the invention is characterized in that the star arm star is rotatable in a swivel head at the free end of a telescopically extendable support arm which projects over the bending plane and is guided in a translationally movable manner along the bending plane, the inclination of the star arm star being adjustable relative to the bending plane by pivoting the swivel head is.
  • each catch arm is mounted on the rotating part of the catch arm star so as to be pivotable about an axis running transversely to the longitudinal direction of the catch arm and is actuated at the same time as the separation process by means of a mounted on the rotating part of the catch arm star th actuator against the bending plane and away from it.
  • each catch arm can move with its free end into the catch position in the catch position at the time the wire bracket is separated from the wire supply, so that it is impossible for the bracket to evade or slide off.
  • each guard arm is assigned a protective bracket which is rigidly mounted on the rotating part of the guard arm star and extends above the guard arm at an inclination to the latter.
  • an electronic program control device is also provided for the adjustment of the sliding head, the telescopic arm and the swivel head to the catching point and for the control of the actuating device of the catching arms.
  • the device is mounted on a bending machine intended for the production of wire brackets, of which the bending plane 1 inclined to the vertical, the bending tools 2 arranged therein and a pair of scissors 3 serving to separate the bent brackets from an intermittently advanced wire are shown schematically.
  • the device has a sliding head 4, which is guided on a rail 5 running along the upper side of the bending plane 1 and engages with a drive spindle 7 driven by an electric drive motor 6 via a spindle nut 8 which is firmly connected to the sliding head stands.
  • the sliding head 4 is connected to an arm 9 which projects over the inclined bending plane 1 of the stirrup bending machine and carries at its free end a telescopic arm 10 which runs essentially parallel to the bending plane 1.
  • This telescopic arm 10 consists of a guide sleeve 11 and an arm part 12 which can be displaced therein and which can be moved relative to the sleeve 11 by means of a drive spindle 14 which can be driven by an electric drive motor 13 via a spindle nut 15 which is fixedly connected to the arm part.
  • a swivel head 16 is fastened to be pivotable about an axis 17 parallel to the bending plane.
  • a catch arm star 18 is rotatably mounted in the swivel head 16 and, in the exemplary embodiment shown, is equipped with three bow catch arms 19 which have the same mutual angular distance.
  • the catch arm star 18 can be rotated about an axis x-x perpendicular to the swivel head plane by means of an electric drive device 20.
  • Each catch arm 19 is pivotally mounted on the rotating part 18 'of the catch arm star at 21 and in the catch position by means of an actuating element 22 acting in front of the pivot axis, e.g.
  • a hydraulic switching piston can be pivoted against the bending plane 1 against the action of a compression spring 23 connected to the rear arm end.
  • the free end 19 'of the tentacle 19 is bent against the bending plane 1 so that multi-wire curved bracket can be caught safely.
  • a protective bracket 24 extends from the swivel head 16 above each catch arm 19 to beyond the end of the catch arm.
  • the swivel head 16 and the catch arm star 18 are inclined relative to the bending plane 1 in such a way that the catch arms 19 form an acute angle with the bending plane 1.
  • the lengths of the legs and the bending angles between the legs of the stirrups to be produced, as well as the required number of pieces or the number of pieces to be picked up by each catch arm, are predetermined provided, such as punched tape or magnetic tapes serve as data carriers.
  • the control device first effects a movement of the sliding head 4 to the position of the catch point determined by the bow shape, and an alignment of the swivel head 16 with the aid of the telescopic arm 10 to the catch point and a corresponding inclination of the catch arm star 18 relative to the bending plane 1 by pivoting the swivel head 16 around the Axis 17 with the help of a swivel device, not shown, for example a spindle drive.
  • the inclination is preferably chosen so that a sufficiently large distance remains between the free end 19 'of the catch arm 19 and the bending plane 1 during the bending process, so that the movement of the bracket is not hindered during the bending process.
  • the control device causes the catch arm 19 to be actuated against the bending plane by an actuating element 22 at the same time as a switching impulse delivered simultaneously with the severing of a bent bow B by means of the scissors 3 is pivoted so that the spring that jumps away under the separating force is caught by the tentacle and slides backwards on the latter due to the inclined position of the tentacle.
  • multi-wire curved brackets can be safely caught in this way.
  • the curved free arm end 19 'facilitates the inclusion of the bracket.
  • the catch arm 19 pivots back about its pivot axis 21 into its starting position under the action of the compression spring 23.
  • the protective bracket 24 also serves as personal protection.
  • the catch arm star 18 is rotated by one arm division with the aid of the control device which actuates the rotary drive device 20.
  • the bracket B can then by means of a suitable, not shown Tying device can be tied off and removed from the full tentacle.
  • the inclination of the axis of rotation x-x and thus the catch arms 19 relative to the bending plane 1 can be adjusted by pivoting the swivel head 16 about its swivel axis 17.
  • the inclination of the axis of rotation x-x is expediently chosen so large that the stirrups to be caught slide securely into the rest position on the catch arm and that the catch arm rotated into the emptying position assumes an almost horizontal position, thereby facilitating the removal of the tied strap package.
  • the invention is not limited to the exemplary embodiment explained above, but that it can be modified in various ways within the scope of the general inventive concept.
  • the mechanism for pivoting the catch arms could also be formed by a single, double-acting switching element connected to the catch arm.
  • the tentacle star equipped with three tentacles in the example shown can also have more than three arms, which can also have different angular spacing, but has at least two tentacles. With the exception of the pivoting movement of the catch arms towards the bending plane, some of the control movements of the device according to the invention could also be carried out by hand.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Wire Processing (AREA)
  • Control And Other Processes For Unpacking Of Materials (AREA)
  • Manufacturing Of Electrical Connectors (AREA)
  • Bending Of Plates, Rods, And Pipes (AREA)

Abstract

Apparatus for removing wire straps (B) from a strap-bending machine, with a rotatable star-shaped arrangement (18) of collecting arms, which is movable up to the inclined bending plane (1) of the bending machine and the collecting arms (19) of which can be rotated successively into the collecting position in order to receive in each case a predetermined number of wire straps. In the collecting position, they are directed towards a collecting point in the bending plane, the said collecting point being situated in the region of the bending and cut-off tools, the star-shaped arrangement of collecting arms being rotatable in a swivel head (16) at the free end of a supporting arm (10) which projects across the bending plane, can be extended telescopically and is guided along the bending plane with translational mobility, and the inclination of the star-shaped arrangement of collecting arms being adjustable relative to the bending plane by swivelling the swivel head. <IMAGE>

Description

Die Erfindung betrifft eine Vorrichtung zum Entfernen von Drahtbügeln von einer Bügelbiegemaschine, mit einem an die geneigte Biegeebene der Biegemaschine heran bewegbaren drehbaren Fangarmstern, dessen Fangarme nacheinander zur Aufnahme je einer vorbestimmten Anzahl von Drahtbügeln in die Fangposition drehbar sind, in welcher sie gegen eine im Bereich der Biege- und Abtrennwerkzeuge gelegene Fangstelle in der Biegeebene gerichtet sind.The invention relates to a device for removing wire brackets from a bow bending machine, with a rotatable catch arm star that can be moved towards the inclined bending plane of the bending machine, the catch arms of which can be rotated one after the other for receiving a predetermined number of wire brackets into the catch position, in which they counter against one in the area of the bending and severing tools located catch point in the bending plane.

Bei einer aus der AT-PS 378.489 bekannten Vorrichtung dieser Art ist der Fangarmstern an einem auf dem Boden verfahrbaren Wagen montiert. Diese Ausbildung hat den Nachteil, daß die Positionierung des Fangarmsternes relativ zu den Biegewerkzeugen von Hand erfolgen muß und dement­sprechend ungenau ist und daß außerdem die Gefahr einer Verlagerung des Fangarmsternes aus der vorbestimmten Stellung infolge der beim Abtrennen der fertigen Bügel auftretenden, ein Wegspringen der Bügel verursachenden Kräfte besteht.In a device of this type known from AT-PS 378,489, the tentacle star is mounted on a carriage which can be moved on the floor. This design has the disadvantage that the positioning of the tent arm star relative to the bending tools must be done by hand and is accordingly inaccurate and that there is also the risk of the tent arm star being displaced from the predetermined position as a result of the brackets causing the bracket to jump off when the finished bracket is separated Powers.

Die Erfindung zielt darauf ab, eine Vorrichtung der einleitend angegebenen Art zu schaffen, welche die ge­schilderten Nachteile vermeidet und eine exakte Einstellung der Fangarme auf die Fangstelle sowie eine sichere und störungsfreie Aufnahme der abgeworfenen Drahtbügel gewähr­leistet. Die erfindungsgemäße Vorrichtung zeichnet sich dadurch aus, daß der Fangarmstern in einem Schwenkkopf am freien Ende eines über die Biegeebene auskragenden teles­kopartig ausziehbaren Tragarmes drehbar ist, der entlang der Biegeebene translatorisch bewegbar geführt ist, wobei die Neigung des Fangarmsternes relativ zur Biegeebene durch Verschwenken des Schwenkkopfes einstellbar ist.The invention aims to provide a device of the type mentioned in the introduction, which avoids the disadvantages described and ensures an exact setting of the tentacles on the catching point as well as a safe and trouble-free reception of the dropped wire bracket. The device according to the invention is characterized in that the star arm star is rotatable in a swivel head at the free end of a telescopically extendable support arm which projects over the bending plane and is guided in a translationally movable manner along the bending plane, the inclination of the star arm star being adjustable relative to the bending plane by pivoting the swivel head is.

Gemäß einer bevorzugten Ausführungsform der Erfindung ist jeder Fangarm am Drehteil des Fangarmsternes um eine quer zur Fangarmlängsrichtung verlaufende Achse schwenkbar montiert und mittels einer am Drehteil des Fangarmsternes montierten, gleichzeitig mit dem Abtrennvorgang angesteuer­ ten Betätigungseinrichtung gegen die Biegeebene hin und von dieser weg schwenkbar.According to a preferred embodiment of the invention, each catch arm is mounted on the rotating part of the catch arm star so as to be pivotable about an axis running transversely to the longitudinal direction of the catch arm and is actuated at the same time as the separation process by means of a mounted on the rotating part of the catch arm star th actuator against the bending plane and away from it.

Die Erfindung ermöglicht eine exakte und unverrückbare Einstellung des Fangarmsternes bzw. jedes Fangarmes relativ zur Biegestelle sowie eine einwandfreie Aufnahme der unter der Wirkung der beim Abtrennvorgang auftretenden Kräfte von der Biegeebene weg geschleuderten Drahtbügel. Insbesondere kann sich jeder Fangarm in der Fangposition mit seinem freien Ende im Zeitpunkt des Abtrennens des Drahtbügels vom Drahtvorrat in den Bügel hinein bewegen, so daß ein Ausweichen oder Abgleiten des Bügels unmöglich ist.The invention enables an exact and immovable setting of the tentacle star or each tentacle relative to the bending point as well as a perfect absorption of the wire bow thrown away from the bending plane under the effect of the forces occurring during the severing process. In particular, each catch arm can move with its free end into the catch position in the catch position at the time the wire bracket is separated from the wire supply, so that it is impossible for the bracket to evade or slide off.

Nach einem weiteren Merkmal der Erfindung ist jedem Fangarm ein am Drehteil des Fangarmsternes starr montierter Schutzbügel zugeordnet, der sich oberhalb des Fangarmes zu diesem geneigt erstreckt.According to a further feature of the invention, each guard arm is assigned a protective bracket which is rigidly mounted on the rotating part of the guard arm star and extends above the guard arm at an inclination to the latter.

Im Rahmen der Erfindung ist ferner für die Einstellung des Gleitkopfes, des Teleskoparmes und des Schwenkkopfes auf die Fangstelle sowie für die Steuerung der Betäti­gungseinrichtung der Fangarme eine elektronische Programm­steuereinrichtung vorgesehen.In the context of the invention, an electronic program control device is also provided for the adjustment of the sliding head, the telescopic arm and the swivel head to the catching point and for the control of the actuating device of the catching arms.

Weitere Merkmale der Erfindung werden nachfolgend an einem Ausführungsbeispiel unter Bezugnahme auf die Zeich­nungen näher erläutert.

  • Fig. 1 zeigt schematisch eine Vorrichtung gemäß der Erfindung in der Draufsicht und
  • Fig. 2 in der Seitenansicht.
Further features of the invention are explained in more detail below using an exemplary embodiment with reference to the drawings.
  • Fig. 1 shows schematically a device according to the invention in plan view and
  • Fig. 2 in side view.

Die Vorrichtung ist an einer zum Herstellen von Drahtbügeln bestimmten Biegemaschine montiert, von der die zur Vertikalen geneigte Biegeebene 1, die in dieser angeordneten Biegewerkzeuge 2 und eine zum Abtrennen der gebogenen Bügel von einem intermittierend vorgeschobenen Draht dienende Schere 3 schematisch dargestellt sind. Die Vorrichtung weist einen Gleitkopf 4 auf, der an einer entlang der Oberseite der Biegeebene 1 verlaufenden Schiene 5 geführt und mit einer von einem elektrischen Antriebs­motor 6 angetriebenen Antriebsspindel 7 über eine mit dem Gleitkopf fest verbundene Spindelmutter 8 in Eingriff steht. Der Gleitkopf 4 ist mit einem Arm 9 verbunden, der über die geneigte Biegeebene 1 der Bügelbiegemaschine auskragt und an seinem freien Ende einen im wesentlichen parallel zur Biegeebene 1 verlaufenden Teleskoparm 10 trägt. Dieser Teleskoparm 10 besteht aus einer Führungs­hülse 11 und einem in dieser verschiebbaren Armteil 12, der mittels einer von einem elektrischen Antriebsmotor 13 antreibbaren Antriebsspindel 14 über eine mit dem Armteil fest verbundene Spindelmutter 15 relativ zur Hülse 11 bewegbar ist.The device is mounted on a bending machine intended for the production of wire brackets, of which the bending plane 1 inclined to the vertical, the bending tools 2 arranged therein and a pair of scissors 3 serving to separate the bent brackets from an intermittently advanced wire are shown schematically. The device has a sliding head 4, which is guided on a rail 5 running along the upper side of the bending plane 1 and engages with a drive spindle 7 driven by an electric drive motor 6 via a spindle nut 8 which is firmly connected to the sliding head stands. The sliding head 4 is connected to an arm 9 which projects over the inclined bending plane 1 of the stirrup bending machine and carries at its free end a telescopic arm 10 which runs essentially parallel to the bending plane 1. This telescopic arm 10 consists of a guide sleeve 11 and an arm part 12 which can be displaced therein and which can be moved relative to the sleeve 11 by means of a drive spindle 14 which can be driven by an electric drive motor 13 via a spindle nut 15 which is fixedly connected to the arm part.

Am freien Ende des Teleskoparms 10 ist ein Schwenkkopf 16 um eine zur Biegeebene parallele Achse 17 schwenkbar befestigt. Im Schwenkkopf 16 ist ein Fangarmstern 18 drehbar gelagert, der beim dargestellten Ausführungs­beispiel mit drei Bügelfangarmen 19 ausgestattet ist, die gleichen gegenseitigen Winkelabstand haben. Der Fangarm­stern 18 ist um eine zur Schwenkkopfebene senkrechte Achse x-x mittels einer elektrischen Antriebseinrichtung 20 drehbar. Jeder Fangarm 19 ist am Drehteil 18′ des Fangarmsternes bei 21 schwenkbar gelagert und in der Fangposition mittels eines vor der Schwenkachse angreifen­den Betätigungselementes 22, z.B. eines hydraulischen Schaltkolbens, entgegen der Wirkung einer mit dem hinteren Armende verbundenen Druckfeder 23 gegen die Biegeebene 1 hin schwenkbar. Das freie Ende 19′ des Fangarmes 19 ist gegen die Biegeebene 1 hin abgebogen, damit auch mehradrig gebogene Bügel sicher gefangen werden können. Vom Schwenk­kopf 16 erstreckt sich oberhalb jedes Fangarmes 19 ein Schutzbügel 24 bis über das Ende des Fangarmes hinaus.At the free end of the telescopic arm 10, a swivel head 16 is fastened to be pivotable about an axis 17 parallel to the bending plane. A catch arm star 18 is rotatably mounted in the swivel head 16 and, in the exemplary embodiment shown, is equipped with three bow catch arms 19 which have the same mutual angular distance. The catch arm star 18 can be rotated about an axis x-x perpendicular to the swivel head plane by means of an electric drive device 20. Each catch arm 19 is pivotally mounted on the rotating part 18 'of the catch arm star at 21 and in the catch position by means of an actuating element 22 acting in front of the pivot axis, e.g. a hydraulic switching piston, can be pivoted against the bending plane 1 against the action of a compression spring 23 connected to the rear arm end. The free end 19 'of the tentacle 19 is bent against the bending plane 1 so that multi-wire curved bracket can be caught safely. A protective bracket 24 extends from the swivel head 16 above each catch arm 19 to beyond the end of the catch arm.

Wie insbesondere Fig. 2 zeigt, sind der Schwenkkopf 16 und der Fangarmstern 18 relativ zur Biegeebene 1 derart geneigt, daß die Fangarme 19 mit der Biegeebene 1 einen spitzen Winkel einschließen.As shown in FIG. 2 in particular, the swivel head 16 and the catch arm star 18 are inclined relative to the bending plane 1 in such a way that the catch arms 19 form an acute angle with the bending plane 1.

Im Betrieb werden mit Hilfe einer nicht gezeigten elektronischen Programmsteuereinrichtung die Längen der Schenkel und die Biegewinkel zwischen den Schenkeln der herzustellenden Bügel sowie die erforderlichen Stückzahlen bzw. die von jedem Fangarm aufzunehmende Stückzahl vorein­ gestellt, wobei als Datenträger z.B. Lochstreifen oder Magnetbänder dienen. Die Steuereinrichtung bewirkt zunächst ein Verfahren des Gleitkopfes 4 auf die durch die Bügelform bestimmte Position der Fangstelle sowie ein Ausrichten des Schwenkkopfes 16 mit Hilfe des Teleskoparmes 10 auf die Fangstelle und eine entsprechende Neigung des Fangarm­sternes 18 relativ zur Biegeebene 1 durch Schwenken des Schwenkkopfes 16 um die Achse 17 mit Hilfe einer nicht gezeigten Schwenkeinrichtung, z.B. einem Spindelantrieb. Die Neigung wird vorzugsweise so gewählt, daß während des Biegevorganges zwischen dem freien Ende 19′ des Fangarmes 19 und der Biegeebene 1 ein genügend großer Abstand verbleibt, damit die Bewegung des Bügels während des Biegevorganges nicht behindert wird. Sobald ein leerer Fangarm 19 auf die den Biegewerkzeugen 2 in Drahtvorschub­richtung nachgeschaltete Fangstelle ausgerichtet ist, bewirkt die Steuereinrichtung, daß der Fangarm 19 jeweils durch einen gleichzeitig mit dem Abtrennen eines fertig gebogenen Bügels B mittels der Schere 3 abgegebenen Schaltimpulses mittels des Betätigungselementes 22 gegen die Biegeebene geschwenkt wird, so daß der unter der Abtrennkraft wegspringende Bügel vom Fangarm gefangen wird und zufolge der Schräglage des Fangarmes auf diesem nach hinten gleitet. Insbesondere können auf diese Weise auch mehradrig gebogene Bügel sicher gefangen werden. Das gebogene freie Fangarmende 19′ erleichtert die Aufnahme des Bügels. Nach der Aufnahme des Bügels schwenkt der Fangarm 19 um seine Schwenkachse 21 unter der Wirkung der Druckfeder 23 in seine Ausgangsstellung zurück. Der relativ zum Fangarm 19 leicht geneigt verlaufende Schutzbügel 24 beruhigt die durch die Abtrennkraft verursachten Auf- und Abbewegungen der Bügel auf dem Fangarm. Für die nicht in Fangposition befindlichen Fangarme 19 dient der Schutzbügel 24 zugleich als Personenschutz. Nach der Aufnahme der voreingestellten Bügelanzahl wird der Fangarmstern 18 mit Hilfe der Steuereinrichtung, welche die Drehantriebsein­richtung 20 betätigt, um eine Armteilung gedreht. Die Bügel B können dann mittels einer geeigneten, nicht dargestellten Abbindeeinrichtung abgebunden und vom vollen Fangarm abgenommen werden.In operation, with the help of an electronic program control device, not shown, the lengths of the legs and the bending angles between the legs of the stirrups to be produced, as well as the required number of pieces or the number of pieces to be picked up by each catch arm, are predetermined provided, such as punched tape or magnetic tapes serve as data carriers. The control device first effects a movement of the sliding head 4 to the position of the catch point determined by the bow shape, and an alignment of the swivel head 16 with the aid of the telescopic arm 10 to the catch point and a corresponding inclination of the catch arm star 18 relative to the bending plane 1 by pivoting the swivel head 16 around the Axis 17 with the help of a swivel device, not shown, for example a spindle drive. The inclination is preferably chosen so that a sufficiently large distance remains between the free end 19 'of the catch arm 19 and the bending plane 1 during the bending process, so that the movement of the bracket is not hindered during the bending process. As soon as an empty catch arm 19 is aligned with the catch point downstream of the bending tools 2 in the wire feed direction, the control device causes the catch arm 19 to be actuated against the bending plane by an actuating element 22 at the same time as a switching impulse delivered simultaneously with the severing of a bent bow B by means of the scissors 3 is pivoted so that the spring that jumps away under the separating force is caught by the tentacle and slides backwards on the latter due to the inclined position of the tentacle. In particular, multi-wire curved brackets can be safely caught in this way. The curved free arm end 19 'facilitates the inclusion of the bracket. After the bracket has been received, the catch arm 19 pivots back about its pivot axis 21 into its starting position under the action of the compression spring 23. The protective bracket 24, which is slightly inclined relative to the catch arm 19, soothes the up and down movements of the brackets on the catch arm caused by the separating force. For the tentacles 19 not in the catching position, the protective bracket 24 also serves as personal protection. After the preset number of stirrups has been recorded, the catch arm star 18 is rotated by one arm division with the aid of the control device which actuates the rotary drive device 20. The bracket B can then by means of a suitable, not shown Tying device can be tied off and removed from the full tentacle.

Die Neigung der Drehachse x-x und damit der Fangarme 19 relativ zur Biegeebene 1 läßt sich durch Schwenken des Schwenkkopfes 16 um seine Schwenkachse 17 einstellen. Die Neigung der Drehachse x-x wird zweckmäßig so groß gewählt, daß die zu fangenden Bügel auf dem Fangarm sicher in die Ruhelage gleiten und daß der jeweils in die Entleerstellung gedrehte Fangarm eine nahezu horizontale Lage einnimmt, wodurch die Entnahme des abgebundenen Bügelpaketes erleich­tert wird.The inclination of the axis of rotation x-x and thus the catch arms 19 relative to the bending plane 1 can be adjusted by pivoting the swivel head 16 about its swivel axis 17. The inclination of the axis of rotation x-x is expediently chosen so large that the stirrups to be caught slide securely into the rest position on the catch arm and that the catch arm rotated into the emptying position assumes an almost horizontal position, thereby facilitating the removal of the tied strap package.

Es versteht sich, daß die Erfindung nicht auf das vorstehend erläuterte Ausführungsbeispiel beschränkt ist, dieses vielmehr im Rahmen des allgemeinen Erfindungs­gedankens verschiedentlich abgewandelt werden kann. So können insbesondere anstelle der Spindelantriebe für den Gleitkopf und für den Teleskoparm auch andere Antriebsein­richtungen gewählt werden. Ferner könnte der Mechanismus für die Schwenkbetätigung der Fangarme auch durch ein einziges mit dem Fangarm verbundenes doppeltwirkendes Schaltorgan gebildet sein. Der beim gezeigten Beispiel mit drei Fangarmen ausgestattete Fangarmstern kann auch mehr als drei Arme haben, die auch unterschiedlichen Winkelab­stand haben können, weist aber zumindest zwei Fangarme auf. Mit Ausnahme der Schwenkbewegung der Fangarme gegen die Biegeebene hin könnten einige der Steuerbewegungen der erfindungsgemäßen Vorrichtung auch von Hand ausgeführt werden.It goes without saying that the invention is not limited to the exemplary embodiment explained above, but that it can be modified in various ways within the scope of the general inventive concept. In particular, instead of the spindle drives for the sliding head and for the telescopic arm, other drive devices can also be selected. Furthermore, the mechanism for pivoting the catch arms could also be formed by a single, double-acting switching element connected to the catch arm. The tentacle star equipped with three tentacles in the example shown can also have more than three arms, which can also have different angular spacing, but has at least two tentacles. With the exception of the pivoting movement of the catch arms towards the bending plane, some of the control movements of the device according to the invention could also be carried out by hand.

Claims (7)

1. Vorrichtung zum Entfernen von Drahtbügeln von einer Bügelbiegemaschine, mit einem an die geneigte Biegeebene der Biegemaschine heran bewegbaren drehbaren Fangarmstern, dessen Fangarme nacheinander zur Aufnahme je einer vorbestimmten Anzahl von Drahtbügeln in die Fangposi­tion drehbar sind, in welcher sie gegen eine im Bereich der Biege- und Abtrennwerkzeuge gelegene Fangstelle in der Biegeebene gerichtet sind, dadurch gekennzeichnet, daß der Fangarmstern (18) in einem Schwenkkopf (16) am freien Ende eines über die Biegeebene (1) auskragenden teleskopartig ausziehbaren Tragarmes (10) drehbar ist, der entlang der Biegeebene (1) translatorisch bewegbar geführt ist, wobei die Neigung des Fangarmsternes (18) relativ zur Biegeebene (1) durch Verschwenken des Schwenkkopfes (16) einstellbar ist.1. Device for removing wire clips from a clip bending machine, with a rotatable catch arm star that can be moved toward the inclined bending plane of the bending machine, the catch arms of which can be rotated one after the other in order to receive a predetermined number of wire clips into the catch position, in which they press against one in the area of the bending - and cutting tools located catch point are directed in the bending plane, characterized in that the catch arm star (18) in a swivel head (16) at the free end of a projecting over the bending plane (1) projecting telescopic arm (10) is rotatable, which along the bending plane (1) is guided so as to be translationally movable, the inclination of the star arm (18) relative to the bending plane (1) being adjustable by pivoting the swivel head (16). 2. Vorrichtung nach Anspruch 1, dadurch gekennzeich­net, daß jeder Fangarm (19) am Drehteil (18′) des Fangarmsternes (18) um eine quer zur Fangarmlängsrichtung verlaufende Achse (21) schwenkbar montiert und mittels einer am Drehteil (18′) des Fangarmsternes (18) montierten, gleichzeitig mit dem Abtrennvorgang angesteuerten Betäti­gungseinrichtung (22) gegen die Biegeebene (1) hin und von dieser weg schwenkbar ist.2. Device according to claim 1, characterized in that each catch arm (19) on the rotating part (18 ') of the catch arm star (18) about a transverse to the longitudinal arm direction axis (21) pivotally mounted and by means of a rotating part (18') of the catch arm star (18) mounted, actuated simultaneously with the severing operation (22) against the bending plane (1) towards and away from it. 3. Vorrichtung nach Anspruch 1 oder 2, dadurch gekennzeichnet, daß das freie Ende (19′) jedes Fangarmes (18) gegen die Biegeebene (1) hin abgebogen ist.3. Apparatus according to claim 1 or 2, characterized in that the free end (19 ') of each catch arm (18) is bent against the bending plane (1). 4. Vorrichtung nach einem der Ansprüche 1 bis 3, dadurch gekennzeichnet, daß jedem Fangarm (19) ein am Drehteil (18′) des Fangarmsternes (18) starr montierter Schutzbügel (24) zugeordnet ist, der sich oberhalb des Fangarmes zu diesem geneigt erstreckt.4. Device according to one of claims 1 to 3, characterized in that each catch arm (19) on the rotating part (18 ') of the catch arm star (18) rigidly mounted protective bracket (24) is assigned, which extends above the catch arm to this inclined . 5. Vorrichtung nach einem der Ansprüche 1 bis 4, dadurch gekennzeichnet, daß zur Teleskopbewegung des Tragarmes (10) ein Spindelantrieb (13, 14) vorgesehen ist.5. Device according to one of claims 1 to 4, characterized in that a spindle drive (13, 14) is provided for the telescopic movement of the support arm (10). 6. Vorrichtung nach einem der Ansprüche 1 bis 5, dadurch gekennzeichnet, daß zur translatorischen Ver­ stellung des Tragarmes (10) entlang der Biegeebene (1) ein Spindelantrieb (6, 7) vorgesehen ist.6. Device according to one of claims 1 to 5, characterized in that for translational Ver position of the support arm (10) along the bending plane (1) a spindle drive (6, 7) is provided. 7. Vorrichtung nach einem der Ansprüche 1 bis 6, dadurch gekennzeichnet, daß für die Einstellung des Gleitkopfes (4), des Teleskoparmes (10) und des Schwenk­kopfes (16) auf die Fangstelle sowie für die Steuerung der Betätigungseinrichtung (22) der Fangarme (19) eine elektro­nische Programmsteuereinrichtung vorgesehen ist.7. Device according to one of claims 1 to 6, characterized in that for the adjustment of the sliding head (4), the telescopic arm (10) and the swivel head (16) on the catch point and for the control of the actuating device (22) of the catch arms ( 19) an electronic program control device is provided.
EP89890061A 1988-03-17 1989-03-02 Apparatus for removing wire straps from a strap-bending machine Expired - Lifetime EP0333695B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
AT718/88 1988-03-17
AT0071888A AT389476B (en) 1988-03-17 1988-03-17 DEVICE FOR REMOVING WIRE BRACKETS FROM A BRACKET BENDING MACHINE

Publications (3)

Publication Number Publication Date
EP0333695A2 true EP0333695A2 (en) 1989-09-20
EP0333695A3 EP0333695A3 (en) 1990-09-26
EP0333695B1 EP0333695B1 (en) 1993-09-08

Family

ID=3497987

Family Applications (1)

Application Number Title Priority Date Filing Date
EP89890061A Expired - Lifetime EP0333695B1 (en) 1988-03-17 1989-03-02 Apparatus for removing wire straps from a strap-bending machine

Country Status (4)

Country Link
EP (1) EP0333695B1 (en)
AT (2) AT389476B (en)
DE (1) DE58905500D1 (en)
GR (1) GR890300153T1 (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0446650A1 (en) * 1990-03-15 1991-09-18 M.E.P. Macchine Elettroniche Piegatrici S.p.A. Collection and discharge bench
EP0479281A1 (en) * 1990-10-04 1992-04-08 Heinz Ruhl Device for bending bar-shaped materials
GR1003500B (en) * 1999-04-06 2001-01-03 ������� & ��� �� "������" Reclining machine for aligning, bending, and cutting iron bars (automatic electronic strapping maker)

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Publication number Priority date Publication date Assignee Title
US3024815A (en) * 1958-03-03 1962-03-13 Western Electric Co Apparatus for forming and handling wire parts
DE2420936A1 (en) * 1973-05-02 1974-11-21 Mitsui Shipbuilding Eng DEVICE FOR REMOVING PIPES FROM A PIPE BENDING MACHINE
EP0032656A2 (en) * 1980-01-16 1981-07-29 EVG Entwicklungs- u. Verwertungs- Gesellschaft m.b.H. Installation for manufacturing stirrups of different shapes and sizes, particularly of concrete-reinforcing stirrups
SU897333A1 (en) * 1979-12-19 1982-01-15 Специальное Конструкторское Бюро Главстройпрома Machine for producing wire parts
AT378489B (en) * 1983-04-18 1985-08-12 Bucher Franz CUTTING MACHINE FOR THE PRODUCTION OF EXTENDED REINFORCING BARS FROM REINFORCED WIRE

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3024815A (en) * 1958-03-03 1962-03-13 Western Electric Co Apparatus for forming and handling wire parts
DE2420936A1 (en) * 1973-05-02 1974-11-21 Mitsui Shipbuilding Eng DEVICE FOR REMOVING PIPES FROM A PIPE BENDING MACHINE
SU897333A1 (en) * 1979-12-19 1982-01-15 Специальное Конструкторское Бюро Главстройпрома Machine for producing wire parts
EP0032656A2 (en) * 1980-01-16 1981-07-29 EVG Entwicklungs- u. Verwertungs- Gesellschaft m.b.H. Installation for manufacturing stirrups of different shapes and sizes, particularly of concrete-reinforcing stirrups
AT378489B (en) * 1983-04-18 1985-08-12 Bucher Franz CUTTING MACHINE FOR THE PRODUCTION OF EXTENDED REINFORCING BARS FROM REINFORCED WIRE

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Title
SOVIET INVENTIONS ILLUSTRATED, Week 8347, 12 January 1983. Derwent Publications Ltd., London GB. *no. A2092* & SU-A 897333 (GLAVSTROIPROM) 19 December 1979 *
SOVIET INVENTIONS ILLUSTRATED, Week 8347, 12 January 1983. Derwent Publications Ltd., London GB.& SU-A-897333 (GLAVSTROIPROM). *

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0446650A1 (en) * 1990-03-15 1991-09-18 M.E.P. Macchine Elettroniche Piegatrici S.p.A. Collection and discharge bench
EP0479281A1 (en) * 1990-10-04 1992-04-08 Heinz Ruhl Device for bending bar-shaped materials
GR1003500B (en) * 1999-04-06 2001-01-03 ������� & ��� �� "������" Reclining machine for aligning, bending, and cutting iron bars (automatic electronic strapping maker)

Also Published As

Publication number Publication date
DE58905500D1 (en) 1993-10-14
ATA71888A (en) 1989-05-15
EP0333695A3 (en) 1990-09-26
AT389476B (en) 1989-12-11
EP0333695B1 (en) 1993-09-08
ATE94097T1 (en) 1993-09-15
GR890300153T1 (en) 1990-03-14

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