EP0333695B1 - Appareil à enlever des étriers en fil d'une machine à plier des étriers - Google Patents

Appareil à enlever des étriers en fil d'une machine à plier des étriers Download PDF

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Publication number
EP0333695B1
EP0333695B1 EP89890061A EP89890061A EP0333695B1 EP 0333695 B1 EP0333695 B1 EP 0333695B1 EP 89890061 A EP89890061 A EP 89890061A EP 89890061 A EP89890061 A EP 89890061A EP 0333695 B1 EP0333695 B1 EP 0333695B1
Authority
EP
European Patent Office
Prior art keywords
arm
pickup
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.)
Expired - Lifetime
Application number
EP89890061A
Other languages
German (de)
English (en)
Other versions
EP0333695A3 (en
EP0333695A2 (fr
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/fr
Publication of EP0333695A3 publication Critical patent/EP0333695A3/de
Application granted granted Critical
Publication of EP0333695B1 publication Critical patent/EP0333695B1/fr
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 arm 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 has to 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 brackets 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 and 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
  • Actuating device can be pivoted towards and away from the bending plane.
  • 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 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 taken up by each catch arm, are preset using an electronic program control device (not shown), where, for example, perforated strips 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 selected 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 reception 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 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 stirrup 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.

Landscapes

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

Claims (7)

  1. Installation permettant d'enlever des étriers en fil métallique d'une machine à plier les étriers, qui peut se déplacer près du plan de pliage incliné (1) de la machine à plier, comportant une étoile (18) déplaçable et qui peut tourner, et dont les bras collecteurs (19) peuvent tourner successivement et l'un après l'autre dans la partie de collecte pour recevoir chacun un nombre prédéterminé d'étriers en fil (B), et dans laquelle les bras collecteurs sont dirigés dans la position de collecte dans la zone de pliage et de cisaillage du plan de pliage (1), caractérisée en ce que l'étoile à bras collecteurs (18) peut tourner sur une tête pivotante (16) située à l'extrémité libre d'un bras de support télescopique (10) et faisant saillie au-dessus du plan de pliage (1), lequel bras de support peut être soumis à un mouvement de translation le long du plan de pliage (1), et où l'inclinaison de l'étoile à bras collecteurs (18) peut être réglée en faisant pivoter la tête pivotante (16).
  2. Appareil selon la revendication 1, caractérisé en ce que chaque bras collecteur (19) est monté à pivotement sur la partie rotative (18') de l'étoile à bras collecteurs (18), celle-ci étant montée pivotante sur un axe (21) qui court perpendiculairement à la direction longitudinale des bras collecteurs et qui peut pivoter au moyen de la partie rotative (18') de l'étoile à bras collecteurs (18) en même temps que l'opération de commande de la cisaille (22), le long du plan de pliage (1) et en sens inverse.
  3. Appareil selon la revendication 1 ou 2, caractérisé en ce que l'extrémité libre (19') de chaque bras collecteur (18) est pliée contre le plan de pliage (1).
  4. Appareil selon l'une quelconque des revendications 1 à 3, caractérisé en ce qu'un étrier de protection (24) monté de manière rigide sur la partie rotative (18') de l'étoile à bras collecteurs (18) est adjoint à chaque bras collecteur (19) et que cet étrier de protection s'étend au-dessus du bras collecteur selon une certaine inclinaison vis-à-vis de celui-ci.
  5. Appareil selon l'une quelconque des revendications 1 à 4, caractérisé en ce qu'un entrainement à broches (13, 14) est prévu pour le mouvement télescopique du bras de support (10).
  6. Appareil selon l'une quelconque des revendications 1 à 5, caractérisé en ce qu'un entrainement à broches (6, 7) est prévu pour le mouvement de translation du bras de support télescopique (10) le long du plan de pliage (1).
  7. Appareil selon l'une quelconque des revendications 1 à 6, caractérisé en ce qu'un dispositif de commande électronique programmé est prévu pour le positionnement de la tête coulissante (4), du bras de support télescopique (10) et de la tête pivotante (16) au point collecteur ainsi que pour l'actionnement du dispositif de commande (22) des bras collecteurs (19) un dispositif électronique commandé par programme.
EP89890061A 1988-03-17 1989-03-02 Appareil à enlever des étriers en fil d'une machine à plier des étriers Expired - Lifetime EP0333695B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
AT0071888A AT389476B (de) 1988-03-17 1988-03-17 Vorrichtung zum entfernen von drahtbuegeln von einer buegelbiegemaschine
AT718/88 1988-03-17

Publications (3)

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

Family

ID=3497987

Family Applications (1)

Application Number Title Priority Date Filing Date
EP89890061A Expired - Lifetime EP0333695B1 (fr) 1988-03-17 1989-03-02 Appareil à enlever des étriers en fil d'une machine à plier des étriers

Country Status (4)

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

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
IT1239665B (it) * 1990-03-15 1993-11-11 Piegatrici Macch Elettr Banco di raccolta ed evacuazione
DE9013845U1 (fr) * 1990-10-04 1991-02-14 Ruhl, Heinz, 8703 Ochsenfurt, De
GR1003500B (el) * 1999-04-06 2001-01-03 ������� & ��� �� "������" Ανακλινομενη μηχανη ευθυγραμμισεως, καμψεως και κοπης βεργων σιδηρου (αυτοματος ηλεκτρονικος τσερκαδορος)

Family Cites Families (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
JPS502077U (fr) * 1973-05-02 1975-01-10
SU897333A1 (ru) * 1979-12-19 1982-01-15 Специальное Конструкторское Бюро Главстройпрома Станок дл изготовлени проволочных деталей
AT367322B (de) * 1980-01-16 1982-06-25 Evg Entwicklung Verwert Ges Anlage zum herstellen von buegeln verschiedener gestalt und groesse, insbesondere von betonbewehrungsbssgeln
AT378489B (de) * 1983-04-18 1985-08-12 Bucher Franz Schneidemaschine zur herstellung von abgelaengten bewehrungsstaeben aus bewehrungsdraht

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
SOVIET INVENTIONS ILLUSTRATED, Week 8347, 12 January 1983. Derwent Publications Ltd., London GB.& SU-A-897333 (GLAVSTROIPROM). *

Also Published As

Publication number Publication date
GR890300153T1 (en) 1990-03-14
EP0333695A3 (en) 1990-09-26
DE58905500D1 (de) 1993-10-14
AT389476B (de) 1989-12-11
ATA71888A (de) 1989-05-15
ATE94097T1 (de) 1993-09-15
EP0333695A2 (fr) 1989-09-20

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