EP0027106A1 - Einrichtung zum automatischen Zuführen von Stabmaterial zu einer Biegemaschine für Betonbewehrungsbügel - Google Patents

Einrichtung zum automatischen Zuführen von Stabmaterial zu einer Biegemaschine für Betonbewehrungsbügel Download PDF

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Publication number
EP0027106A1
EP0027106A1 EP19800890111 EP80890111A EP0027106A1 EP 0027106 A1 EP0027106 A1 EP 0027106A1 EP 19800890111 EP19800890111 EP 19800890111 EP 80890111 A EP80890111 A EP 80890111A EP 0027106 A1 EP0027106 A1 EP 0027106A1
Authority
EP
European Patent Office
Prior art keywords
rod
roller
feed
feed rollers
bending
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
EP19800890111
Other languages
German (de)
English (en)
French (fr)
Other versions
EP0027106B1 (de
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
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
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First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=3586371&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=EP0027106(A1) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by EVG Entwicklungs und Verwertungs GmbH filed Critical EVG Entwicklungs und Verwertungs GmbH
Publication of EP0027106A1 publication Critical patent/EP0027106A1/de
Application granted granted Critical
Publication of EP0027106B1 publication Critical patent/EP0027106B1/de
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 for the automatic feeding of rod material to a bending machine for concrete reinforcement stirrups, with at least one drivable and form-fitting overlapping pair of interacting feed rollers.
  • 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 angled 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 rod material is advanced in the bending machine in a known manner by means of grooved rollers which can be pressed elastically onto the rod material and which positively engage over the rod material and take them with them when they rotate by frictional engagement.
  • a pair of scissors is attached between the feed rollers and the actual bending device in bow bending machines arranges, with the help of which each bent bow can be separated from the remaining rod material.
  • 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 terminated 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 Is defined level. 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 previously specified value, by such an amount that the remainder is still possible piece by quickly driving the feed rollers to accelerate so much that its rear end can pass through the path between the feed rollers and the bending tool due to the impulse given to the rest of the piece during acceleration.
  • 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 remnants are ejected to the side of the machine, where they can be easily collected so that they cannot mix with the rod material in the magazine or with the finished brackets.
  • straight rod guides are provided in front of and / or behind the pair of feed rollers, and by means of the rod ejector, a lateral exit path for the rod material from the straight guides can be opened simultaneously with the gap enlargement of the pair of feed rollers.
  • the rod guides provided on both sides of the feed rollers ensure on the one hand that the rods are correctly fed from the rod magazine into the roller gap between the feed rollers and on the other hand that the rod is transported from the feed rollers to the bending tool. A preferred example of the opening of a side exit path from such a guide will be described later.
  • a device can be arranged between two reversible drive roller pairs arranged at a mutual distance in the rod feed path, a unit which can be displaced or swiveled between two positions and which contains a straightening device and a straight, laterally open rod guide, in the one end position of this unit the Straightener and in its other end position the straight, laterally open rod guide lies in the material feed path.
  • 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 in the position 4 'the front end of the bar detected first so far in a ge straight rod guide 5 that it gets into the nip 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 and removed from the drive roller 6 or against the rod located between it and the drive roller 6 by means of a hydraulic or pneumatic working cylinder 8, is a towed roller, which can be connected to a pulse generator in a known manner and can thus also serve as a measuring roller.
  • the bending tool 11 is preferably designed in accordance with AT-PS 314.319 so that the bending mandrel and the movable bending jaw for changing the direction of the bending process are withdrawn from the rod feed path and can be returned to the working position in reversed relative positions with respect to this path, as can be done by the Tool position 11 'has been indicated.
  • the scissors 10 can be operated by a working cylinder 12 in the sense of a cut.
  • the lower sides of the rod guides 5 and 9 are formed by machine-fixed 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 rotatably connected to a shaft 23, about which the cover plate 15 is pivotally mounted.
  • the shaft 23 can be pivoted about its axis by a working cylinder 20 by means of a lever 19.
  • the drive roller 6 In order to be able to eject a remaining piece of a rod, it is advanced by the drive roller 6 until it rests entirely in the rod guides 5 and 9. Now the measuring roller 7 is so far away from the drive roller 6 by means of the working cylinder 8 that the rod can pass laterally through the enlarged roller gap.
  • the shaft 23 is then pivoted by actuating the working cylinder 20 by means of the lever 19, and as a result the parts of the rod guide connected to this shaft are brought into the position shown in broken lines in FIG. Since the cover plate 15 is mounted coaxially with the shaft 23, the levers 18 which pivot out of their rest position and act as a rod ejector take the cover plate with them when they move and the rod rest can emerge from the rod guides 5 and 9, which are now open at the bottom, and slide down along the inclined bending table .
  • catch plates 24 (FIG. 5) can also be provided, in which the sliding rod remnants are collected.
  • FIGS. 3 and 4 show a machine which is used both for loading rod material in the form of straight rods of a given length and for loading with Rings coiled rod material of very great length is suitable.
  • 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.
  • a structural unit 34 is provided, which is adjustable between two limit positions by means of a working cylinder 35, and is displaceable in the exemplary embodiment shown.
  • 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 also provided in the plane perpendicular to the plane of action of the straightening roller set 36, which is moved into its working position (in FIGS.
  • 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.
EP19800890111 1979-10-02 1980-10-01 Einrichtung zum automatischen Zuführen von Stabmaterial zu einer Biegemaschine für Betonbewehrungsbügel Expired EP0027106B1 (de)

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 true EP0027106A1 (de) 1981-04-15
EP0027106B1 EP0027106B1 (de) 1983-01-26

Family

ID=3586371

Family Applications (1)

Application Number Title Priority Date Filing Date
EP19800890111 Expired EP0027106B1 (de) 1979-10-02 1980-10-01 Einrichtung zum automatischen Zuführen von Stabmaterial zu einer Biegemaschine für Betonbewehrungsbügel

Country Status (3)

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

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0092462A1 (fr) * 1982-04-21 1983-10-26 Profer Dispositif de production et d'évacuation de pièces en fil, façonnées
EP0875309B2 (en) † 1997-04-29 2007-11-21 M.E.P. Macchine Elettroniche Piegatrici S.p.A. Perfected bending method for bending machines and relative bending machine
WO2012171528A1 (en) * 2011-06-15 2012-12-20 Enkotec A/S Guiding device
CN105414416A (zh) * 2015-12-15 2016-03-23 天津市银鹤金属制品有限公司 全自动打包钢丝制扣机
GB2623531A (en) * 2022-10-18 2024-04-24 Rolls Royce Plc Rodstock drive assembly

Families Citing this family (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

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1167783B (de) * 1960-08-12 1964-04-16 Baustahlgewebe Gmbh Laengsstabzufuehrungseinrichtung fuer Drahtmatten-Schweissmaschinen
DE1243952B (de) * 1957-06-21 1967-07-06 Fritz Zur Heide Vorrichtung zum Herstellen von Formbiegeteilen
US3563283A (en) * 1967-07-05 1971-02-16 Mash Z Mir Automatic machine for making stirrups and structural reinforcement
AT314319B (de) * 1972-04-12 1974-03-25 Evg Entwicklung Verwert Ges Biegemaschine für draht- oder bandförmiges Material
US3916662A (en) * 1972-11-14 1975-11-04 Welland Iron & Metal Co Apparatus for straightening and cutting reinforcing bar
DE2549546A1 (de) * 1974-11-08 1976-05-13 Nat Machinery Co Vorrichtung zum handhaben langgestreckter teile
DE2712843A1 (de) * 1976-03-25 1977-10-06 Evg Entwicklung Verwert Ges Automatische steuereinrichtung fuer eine zur herstellung von betonbewehrungsbuegeln aus stab- oder drahtmaterial bestimmte biegemaschine

Patent Citations (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
US3563283A (en) * 1967-07-05 1971-02-16 Mash Z Mir Automatic machine for making stirrups and structural reinforcement
AT314319B (de) * 1972-04-12 1974-03-25 Evg Entwicklung Verwert Ges Biegemaschine für draht- oder bandförmiges Material
US3916662A (en) * 1972-11-14 1975-11-04 Welland Iron & Metal Co Apparatus for straightening and cutting reinforcing bar
DE2549546A1 (de) * 1974-11-08 1976-05-13 Nat Machinery Co Vorrichtung zum handhaben langgestreckter teile
DE2712843A1 (de) * 1976-03-25 1977-10-06 Evg Entwicklung Verwert Ges Automatische steuereinrichtung fuer eine zur herstellung von betonbewehrungsbuegeln aus stab- oder drahtmaterial bestimmte biegemaschine

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0092462A1 (fr) * 1982-04-21 1983-10-26 Profer Dispositif de production et d'évacuation de pièces en fil, façonnées
FR2525505A1 (fr) * 1982-04-21 1983-10-28 Bentzmann Bertrand De Dispositif de production et d'evacuation de pieces en fil, faconnees
EP0875309B2 (en) † 1997-04-29 2007-11-21 M.E.P. Macchine Elettroniche Piegatrici S.p.A. Perfected bending method for bending machines and relative bending machine
WO2012171528A1 (en) * 2011-06-15 2012-12-20 Enkotec A/S Guiding device
CN103687681A (zh) * 2011-06-15 2014-03-26 伊科泰克公司 引导装置
CN103687681B (zh) * 2011-06-15 2016-03-09 伊科泰克公司 引导装置
CN105414416A (zh) * 2015-12-15 2016-03-23 天津市银鹤金属制品有限公司 全自动打包钢丝制扣机
GB2623531A (en) * 2022-10-18 2024-04-24 Rolls Royce Plc Rodstock drive assembly

Also Published As

Publication number Publication date
DE3061796D1 (en) 1983-03-03
AT365484B (de) 1982-01-25
EP0027106B1 (de) 1983-01-26
ATA644479A (de) 1981-06-15

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