EP0027106B1 - Dispositif pour amener automatiquement du matériau en tiges à une machine à cintrer des brides d'armature de béton - Google Patents

Dispositif pour amener automatiquement du matériau en tiges à une machine à cintrer des brides d'armature de béton Download PDF

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Publication number
EP0027106B1
EP0027106B1 EP19800890111 EP80890111A EP0027106B1 EP 0027106 B1 EP0027106 B1 EP 0027106B1 EP 19800890111 EP19800890111 EP 19800890111 EP 80890111 A EP80890111 A EP 80890111A EP 0027106 B1 EP0027106 B1 EP 0027106B1
Authority
EP
European Patent Office
Prior art keywords
rod
rolls
bending
feed
thrower
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
Application number
EP19800890111
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German (de)
English (en)
Other versions
EP0027106A1 (fr
Inventor
Klaus Dipl.-Ing. Ritter
Hans Dipl.-Ing. Gött
Gerhard Dipl.-Ing. Dr. Ritter
Josef Dipl.-Ing. Dr. Ritter
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
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Publication date
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Application filed by EVG Entwicklungs und Verwertungs GmbH filed Critical EVG Entwicklungs und Verwertungs GmbH
Publication of EP0027106A1 publication Critical patent/EP0027106A1/fr
Application granted granted Critical
Publication of EP0027106B1 publication Critical patent/EP0027106B1/fr
Expired 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
    • B21F23/00—Feeding wire in wire-working machines or apparatus
    • B21F23/005—Feeding discrete lengths of wire or rod
    • 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
    • B21D43/00—Feeding, positioning or storing devices combined with, or arranged in, or specially adapted for use in connection with, apparatus for working or processing sheet metal, metal tubes or metal profiles; Associations therewith of cutting devices
    • B21D43/006—Feeding elongated articles, such as tubes, bars, or profiles
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21F—WORKING OR PROCESSING OF METAL WIRE
    • B21F23/00—Feeding wire in wire-working machines or apparatus
    • B21F23/005—Feeding discrete lengths of wire or rod
    • B21F23/007—Feeding discrete lengths of wire or rod using pick-up means, e.g. for isolating a predefined number of wires from a bundle

Definitions

  • the invention relates to a device according to the preamble of claim 1 for automatically feeding rod material to a bending machine for concrete reinforcement stirrups.
  • the cut-to-length rod pieces are normally fed to a processing device by means of a gripper, but are thrown off at the beginning and at the end of each rod to remove the uneven end sections of the rod material from the gripper, which temporarily acts as a rod ejector, perpendicular to the rod axis.
  • stirrups are to be made from rod material that is available in standard lengths - usually 12 to 14 m - the accumulation of remnants is unavoidable, because the standard length of a rod generally does not correspond to the sum of the unwound lengths of the stirrups made one after the other from the rod .
  • the bending machine In order to work efficiently and to be able to produce the stirrups economically, the bending machine must be able to be automatically loaded with the required rods, which are taken from a rod magazine, and must also be equipped with an electronic computer, which measures the lengths of the individual feed steps of the rod material between successive bending stages , the sense of direction and the size of the bending angle and finally also the available bar length must be entered. On the basis of these input data, the computer can then determine when the remaining length of a bar is no longer sufficient to produce another bracket and must therefore be removed from the machine.
  • the feed rollers Due to the design dimensions of the feed rollers, the scissors and the bending device, the feed rollers are always arranged at a distance from the actual bending device. It follows immediately that the bending process must be ended at the latest when the end of the remaining remnant is just being gripped by the feed rollers, or in other words when the minimum length of the remnant is equal to the vertical distance of the pivot axis of the bending tool from that through the axes of the Feed rollers defined level is. If this length of the remaining piece is reached, then a further, controlled feeding of the remaining piece to the bending unit is no longer possible, but the remaining piece can still be removed from the bending machine by reversing the direction of rotation of the feed rollers in the direction opposite to its normal feed direction.
  • the minimum length of the remnants must be greater than the value specified above, by such an amount that it is still possible to accelerate the remnant by rapidly driving the feed rollers so that its rear end due to the remnant at Acceleration given the impulse between the feed rollers and the Bending tool can go through.
  • the invention is concerned with the task of designing a device of the type specified in the introduction which is suitable for the automatic feeding of rod material to a bending machine in such a way that the minimum length of unusable remaining pieces is as short as possible and that further removal of long remaining pieces from the bending machine is possible without this can either get back into the rod magazine or injure people in front of the bending machine.
  • the cut-to-length rod pieces regardless of whether they are rod pieces for further processing, end products or waste, are removed from the rod feed path in a lateral direction behind the scissors
  • the remaining pieces resulting from bow bending machines are removed in the area the feed rollers lying in front of the scissors are ejected laterally, for which the roller gap is enlarged accordingly and the rod guides provided in this area are opened laterally.
  • the remnants ejected laterally in front of the scissors cannot mix with the finished stirrups behind the scissors; they can therefore be easily collected and they can be ejected without considerable effort, so that there is no risk of injury to the operating personnel required at the front end of the machine.
  • the remaining pieces can be kept very short in order to minimize material losses.
  • Embodiments of the invention result from the dependent claims 2 to 4.
  • the rod magazine 2 has a V-shaped bottom surface 3, so that the rods located in the magazine always move towards the center of the magazine by gravity.
  • a single bar can be gripped in the magazine 2 and conveyed to the bar feed device of the bending machine.
  • gripping devices are generally known and therefore do not need to be described in more detail.
  • the gripper 4 pushes the front end of the bar in each case so far into a straight bar guide 5 that it gets into the roller gap between a pair of feed rollers 6 and 7.
  • the rollers 6 and 7 each have a circumferential groove and engage positively over the rod.
  • the roller 6- is a drive roller which can be driven by a motor in the direction of the arrow P3, the roller 7, which can be adjusted by means of a hydraulic or pneumatic working cylinder 8 against the drive roller 6 or against the rod located between it and the drive roller 6 and can be removed from it , is a towed role that can be connected to a pulse generator in a known manner and can thus also serve as a measuring role.
  • the bending tool 11 is preferably designed in accordance with AT-B-314 319 so that the bending mandrel and the movable bending jaw are withdrawn from the rod feed path for changing the direction of the bending process and can be returned to the working position in reversed relative positions with respect to this path, as is the case here has been indicated by the tool position 11 '.
  • the scissors 10 can be operated by a working cylinder 12 in the sense of a cut.
  • Aii & machine parts with the exception of the scissors 10 and the bending tool 11, are, as can be seen in FIG. 2, covered with a cover plate 15 which can be brought into an opening position 15 'for inspection purposes and then closed again by means of a working cylinder 16.
  • the lower sides of the rod guides 5 and 9 are formed by machine-controlled sheet metal strips 17, whereas the remaining three sides of these rod guides are attached to the ends of levers 18, which also serve as rod ejectors and are connected in a rotationally fixed manner to a width 23, by which the cover plate is also connected 15 is pivotally mounted.
  • the shaft 23 can be pivoted about its axis by a working cylinder 20 by means of a lever 19.
  • FIGS. 3 and 4 show a machine which is suitable both for loading with rod material in the form of straight rods of a predetermined length and for loading with rod material of very long length wound into rings.
  • This machine has a second pair of feed rollers 25, 26, in which both rollers can be driven by a motor and the roller 26 can be adjusted against the roller 25 by means of a working cylinder 27 or can be removed from this roller, rod guides 28, 29, the structure and method of operation of which are completely the same like that of the staves 5 and 9, complete this additional drive mechanism.
  • a structural unit 34 is provided, which by means of a working cylinder 35 between two. Limit positions adjustable, can be moved in the illustrated embodiment.
  • a straightening roller set 36 lies in the material feed path.
  • a straight rod guide 37 lies in the material feed path.
  • the rod guide 37 consists of a guide trough which is closed on three sides and open towards the viewer and which is closed on the open side only by the cover plate 15. As a result of this design, the rod resting in the rod guide 37 can emerge unhindered from the rod guides 5, 9, 28, 29 and also out of the guide 37 when the levers 18, which also act as rod ejectors, are actuated.
  • a second straightening roller set 38 is provided according to FIG. 5, which is brought into its working position (in FIGS. 3 and 5 with a working cylinder 39) drawn full lines) or from this working position to its rest position (shown in dashed lines in Figures 4 and 5) can be pivoted.
  • the working cylinders 35, 39 are connected in parallel in a common pressure medium line, as a result of which the machine can be converted in a single changeover step either to the supply of elongated rods which have already been aligned or to the supply of rods which have been removed from rings and which are still to be straightened.
  • roller groups of each of the two straightening roller sets which are arranged in two parallel planes, can moreover be separated from one another by means which are not shown because generally known means, in order to make it easier to insert the rod into the machine or to remove it from the machine.

Claims (4)

1. Dispositif pour amener automatiquement du matériau en tiges aux outils de cintrage (11) d'une machine (1) à cintrer des brides d'armature de béton, en utilisant au moins une paire entraînée de rouleaux d'alimentation (6, 7 ; 25, 26) coopérant les uns avec les autres et recouvrant le matériau avec adaptation des formes, ces rouleaux pouvant être rapprochés dans leur plan et en cas de besoin écartés les uns des autres, et un éjecteur de tiges (18) qui éjecte les extrémités des tiges perpendiculairement à l'axe des tiges, caractérisé en ce que les rouleaux d'alimentation (6, 7 ; 25, 26) peuvent être écartés l'un de l'autre sur une distance suffisante pour qu'une sortie du matériau en tiges hors de l'intervalle entre les rouleaux, en direction perpendiculaire au plan des rouleaux, soit possible, en ce que l'éjecteur de tiges (18) est monté dans la zone de l'interstice entre les rouleaux et en ce qu'à l'avant et/ou à l'arrière de la paire de rouleaux d'alimentation (6, 7 ; 25, 26) sont prévus des guides tiges (5, 9 ; 28, 29) en ligne droite, et au moyen desquels peut être ouvert un parcours de sortie latéral pour le matériau en tiges au moyen de l'éjecteur de tiges (18) et simultanément à l'augmentation de J'intervalle entre les rouleaux.
2. Dispositif selon la revendication 1, caractérisé en ce que i'éjecteur de tiges est constitué par des leviers pivotants (18) dont les extrémités supportent des parties des guides tiges (5, 9) constituées sous forme de gouttières qui sont normalement fermées par des parties de fond et fixes de la machine.
3. Dispositif selon la revendication 2, caractérisé en ce que les leviers (18) sont montés coaxialement à une plaque de recouvrement pivotante (15) destinée aux rouleaux d'alimentation (6, 7 ; 25, 26).
4. Dispositif selon l'une quelconque des revendications 1 à 3, caractérisé en ce qu'entre deux paires de rouleaux d'alimentation (6, 7 ; 25, 26) réversibles, montés à une distance mutuelle sur le parcours d'alimentation des tiges, sont disposés des ensembles (34) pouvant être déplacés ou pivotés entre deux positions, qui comprennent un jeu de rouleaux de dressage (36) et un guide-tige (37) ouvert latéralement et en ligne droite, le jeu de rouleaux de dressage étant disposé sur le parcours d'alimentation du matériau dans une position terminale de cet ensemble (34), alors que le guide-tige ouvert latéralement et en ligne droite est disposé sur le parcours d'alimentation du matériau dans l'autre position terminale dudit ensemble.
EP19800890111 1979-10-02 1980-10-01 Dispositif pour amener automatiquement du matériau en tiges à une machine à cintrer des brides d'armature de béton Expired EP0027106B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
AT644479A AT365484B (de) 1979-10-02 1979-10-02 Einrichtung zum automatischen zufuehren von stabmaterial zu einer biegemaschine fuer betonbewehrungsbuegel
AT6444/79 1979-10-02

Publications (2)

Publication Number Publication Date
EP0027106A1 EP0027106A1 (fr) 1981-04-15
EP0027106B1 true EP0027106B1 (fr) 1983-01-26

Family

ID=3586371

Family Applications (1)

Application Number Title Priority Date Filing Date
EP19800890111 Expired EP0027106B1 (fr) 1979-10-02 1980-10-01 Dispositif pour amener automatiquement du matériau en tiges à une machine à cintrer des brides d'armature de béton

Country Status (3)

Country Link
EP (1) EP0027106B1 (fr)
AT (1) AT365484B (fr)
DE (1) DE3061796D1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105436362A (zh) * 2015-11-18 2016-03-30 天津市银鹤金属制品有限公司 步进式水平移料装置

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2525505A1 (fr) * 1982-04-21 1983-10-28 Bentzmann Bertrand De Dispositif de production et d'evacuation de pieces en fil, faconnees
IT1295107B1 (it) † 1997-04-29 1999-04-30 Piegatrici Macch Elettr Sistema di piegatura perfezionato per macchine piegatrici
DK2720814T3 (en) * 2011-06-15 2018-07-23 Enkotec As SYSTEM INCLUDING A LEADING DEVICE
CN105414416B (zh) * 2015-12-15 2018-12-04 芜湖文青机械设备设计有限公司 全自动打包钢丝制扣机

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1243952B (de) * 1957-06-21 1967-07-06 Fritz Zur Heide Vorrichtung zum Herstellen von Formbiegeteilen
DE1167783B (de) * 1960-08-12 1964-04-16 Baustahlgewebe Gmbh Laengsstabzufuehrungseinrichtung fuer Drahtmatten-Schweissmaschinen
DE1752693A1 (de) * 1967-07-05 1971-03-18 Mash Zd Mir Automat mit Elektroprogrammsteuerung fuer die Erzeugung von Buegeln und Bewehrungselementen
BE791166A (fr) * 1972-04-12 1973-03-01 Evg Entwicklung Verwert Ges Pileuse pour fil ou bande metallique
CA982459A (en) * 1972-11-14 1976-01-27 William T. Arnold Apparatus for straightening and cutting reinforcing bar
BE835207A (fr) * 1974-11-08 1976-03-01 Perfectionnements apportes aux machines de forgeage ou analogues
AT345065B (de) * 1976-03-25 1978-08-25 Evg Entwicklung Verwert Ges Automatische steuereinrichtung fuer eine zur herstellung von betonbewehrungsbuegeln aus stab- oder drahtmaterial bestimmte biegemaschine

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105436362A (zh) * 2015-11-18 2016-03-30 天津市银鹤金属制品有限公司 步进式水平移料装置

Also Published As

Publication number Publication date
DE3061796D1 (en) 1983-03-03
EP0027106A1 (fr) 1981-04-15
AT365484B (de) 1982-01-25
ATA644479A (de) 1981-06-15

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