US20070256466A1 - Machine and process for production of three-dimensional stirrups - Google Patents

Machine and process for production of three-dimensional stirrups Download PDF

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Publication number
US20070256466A1
US20070256466A1 US11/740,125 US74012507A US2007256466A1 US 20070256466 A1 US20070256466 A1 US 20070256466A1 US 74012507 A US74012507 A US 74012507A US 2007256466 A1 US2007256466 A1 US 2007256466A1
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United States
Prior art keywords
stirrup
stirrups
leg
arm
producing
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Abandoned
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US11/740,125
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English (en)
Inventor
Antonios Anagnostopoulos
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Individual
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Individual
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Publication of US20070256466A1 publication Critical patent/US20070256466A1/en
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    • 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
    • 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
    • B21D21/00—Combined processes according to methods covered by groups B21D1/00 - B21D19/00
    • 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
    • B21F—WORKING OR PROCESSING OF METAL WIRE
    • B21F27/00—Making wire network, i.e. wire nets
    • B21F27/12—Making special types or portions of network by methods or means specially adapted therefor
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21F—WORKING OR PROCESSING OF METAL WIRE
    • B21F27/00—Making wire network, i.e. wire nets
    • B21F27/12—Making special types or portions of network by methods or means specially adapted therefor
    • B21F27/20—Making special types or portions of network by methods or means specially adapted therefor of plaster-carrying network
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04C—STRUCTURAL ELEMENTS; BUILDING MATERIALS
    • E04C5/00—Reinforcing elements, e.g. for concrete; Auxiliary elements therefor
    • E04C5/01—Reinforcing elements of metal, e.g. with non-structural coatings
    • E04C5/06—Reinforcing elements of metal, e.g. with non-structural coatings of high bending resistance, i.e. of essentially three-dimensional extent, e.g. lattice girders

Definitions

  • the invention refers to a machine and process for production of three-dimensional stirrups 1 a from rods, wire, or other material of any cross-section.
  • Such three-dimensional stirrups may, for example, be employed for joining construction elements of reinforced concrete that are either fabricated on-site at construction sites, or are prefabricated.
  • stirrups 1 a of the type depicted in FIGS. 9-10 were typically produced according to the following techniques:
  • stirrups 1 a are typically placed in metallic cases with shape U or double-U, which are then covered with a suitably shaped cover of metal, synthetic materials, cardboard, or other suitable material.
  • a suitably shaped cover of metal, synthetic materials, cardboard, or other suitable material it is required that their legs 4 , 5 which are located on one plane converge at suitable angle, that their opposing sides 6 , 7 that are located on the other plane be mutually parallel.
  • stirrups taking a planar shape 3 a are formed by effecting four bendings on one plane. Subsequently there are formed the two angles that establish the third dimension. These usually are bent simultaneously in the fifth bending with a suitable mechanism.
  • the first technique (a) discussed above has a high cost of production since it requires the manual involvement of laborers, it is time-consuming, and productivity is low. Furthermore, the quality of the resulting three-dimensional stirrups 1 a is not always that required for their further use. Since the shape of the in-question product does not have absolute precision as to its geometric characteristics this creates difficulties in its placement in the metallic cases.
  • FIG. 1 depicts a first form of three-dimensional stirrups that may be produced in accordance with the present invention.
  • FIG. 2 depicts a second form of three-dimensional stirrups that may be produced in accordance with the present invention.
  • FIG. 3 depicts a third form of three-dimensional stirrups that may be produced in accordance with the present invention.
  • FIG. 4 depicts a fourth form of three-dimensional stirrups that may be produced in accordance with the present invention.
  • FIG. 5 depicts a fifth form of three-dimensional stirrups that may be produced in accordance with the present invention.
  • FIG. 6 helps depict in idealization the process of production and its kinematic requirements, according to the present invention and shows a planar stirrup.
  • FIGS. 7-8 likewise help depict in idealization a process of production and its kinematic requirements, according to the present invention.
  • FIGS. 9-10 depict idealized a process of production of the three-dimensional stirrups according to the prior art.
  • FIG. 11 schematically depicts a version of the machines able to effect the processes of production of three-dimensional stirrups according to the present invention.
  • FIG. 12 schematically depicts another version of the machines able to effect the processes of production of three-dimensional stirrups according to the present invention.
  • the processes concern the automated production of three-dimensional stirrups 1 a , 1 b , 1 c , 1 d , 1 e from rods, wire or other suitable materials of any cross-section.
  • a planar stirrup 9 with parallel legs 4 , 5 by making two bends, or alternatively there may be received a prepared and precut planar stirrup 9 .
  • the free leg 5 is biased at a suitable location 11 towards the opposite leg 4 , which is held unmoved.
  • suitable locations 12 , 13 bends the stirrup out of the plane, so as to create a third dimension. In this fashion only two bending operations may be needed for the creation of the planar stirrup 9 leading to the final three-dimensional stirrup 1 a.
  • This process effects the production of three-dimensional stirrups 1 a from rod, wire, or other suitable material of any cross-section.
  • Such three-dimensional stirrups 1 a typically have the two legs 4 , 5 on which are found the two ends of the stirrup 1 a , being on the same plane and converging at a particular angle, though some of the other sides, that are located on a different plane, may converge under a different angle or may be parallel.
  • the planar stirrup 9 from suitable layout; afterwards, with a suitable mechanism the leg 5 having a free end is trapped at a suitable location 11 and is pulled towards the opposite leg 4 , so that the two legs' 4 , 5 two sides converge under a suitable desired angle.
  • the two-dimensional stirrups 9 may first be prepared and shaped in the suitable dimensions and then be supplied to suitable mechanisms 25 , 22 so as to undergo the further processing for the shaping of the end-product product 1 a , 1 b , 1 c , 1 d , 1 e.
  • stirrups which in the third dimension can have any form, such as for example non-perpendicular angles, uneven leg sides with oblique slanted axial bend 1 b , with curved configuration 1 c , with triangular configuration 1 d , with polygonal configuration 1 e and others.
  • the process may be implemented by an intermediate stirrup-leg adjustment mechanism 25 which is preferably disposed in stirrup machines having the following characteristics: they have an arrangement of an advancement mechanism 21 for the rod, wire or other suitable material, that may come from a spool or from straightened pieces; they have a bending head 19 that bends the material in one place, creating planar stirrups; they have a cutter 20 for cutting the material after the creation of the three-dimensional stirrup 1 a by a second bending mechanism 22 .
  • This second bending mechanism comprises a stationary arm 23 and a second arm 24 that can move cyclically around the stationary arm 23 thereby bending the two legs 4 , 5 of the planar stirrup simultaneously.
  • the stirrup-leg adjustment mechanism 25 is placed between the first bending mechanism 19 and the second bending mechanism 22 and comprises one arm 16 that can move in an alternating, reciprocating manner with the aid of a suitable mechanism 18 and at a suitable angle as to the legs 4 , 5 of the planar stirrup 9 trapping with the aid of a suitable hook 17 the free leg 5 which it moves towards leg 4 . Traversing a suitable distance, it holds the leg 5 until the second bending head 22 bends the two legs 4 , 5 at suitable locations 12 , 13 creating the third dimension. Afterwards the cutting of the material of leg 4 at a suitable cutting location is made by cutter 20 .
  • An intermediate stirrup-leg adjustment mechanism 25 for the production of three-dimensional stirrups 1 a , 1 b , 1 c , 1 d , 1 e , with converging free legs 4 , 5 , from rod, wire, or other suitable material of any cross-section, is placed in stirrup machines.
  • Such stirrup machines may include an arrangement of an advancement mechanism 21 for the rod, wire or other suitable material that may be supplied from a spool or from straightened pieces. In this case they may include a first bending mechanism 19 that bends the material in one plane to generate planar stirrups 9 .
  • a cutter 20 for the cutting of the material after the generation of the three-dimensional stirrup 1 a , 1 b , 1 c , 1 d , 1 e by a second bending mechanism 22 .
  • This second bending mechanism 22 comprises a fixed arm 23 and a second arm 24 that can move cyclically around the fixed arm 23 bending thus the two legs 4 , 5 of the planar stirrup simultaneously.
  • stirrup machines may receive prepared and precut planar stirrups 9 trapping one free leg 4 with the aid of a grip or jaw 26 .
  • the arrangement includes the grip or jaw 26 that can receive the planar stirrup restraining it via leg 4 .
  • stirrup-leg adjustment mechanism 25 may be used also in stirrup machines that work planar prepared or preformed, precut planar stirrups 9 , and that have an arrangement including only the second bending head 22 which creates the third dimension. It will be readily understood from the aforegoing description that in this second case the first bending mechanism 19 is not necessary and may be absent.
  • the intermediate stirrup-leg adjustment mechanism 25 is placed between the first bender 19 and the second bender 22 , under the plane of the under-production product. It comprises an arm 16 that can move with the aid of suitable mechanism 18 that produces a controlled, alternating, reciprocating motion. This may, for example, be a motor or drive mechanism 18 .
  • the arm 16 moves at a suitable selected angle relative to legs 4 , 5 of the planar stirrup 9 , trapping with the aid of a suitable hook 17 the free leg 5 , 11 , and adjusting it towards the other leg 4 .
  • the arm 16 traverses a suitable distance, holding it until the second bending head 22 bends the two legs 4 , 5 at the suitable locations 12 , 13 creating the third dimension.
  • stirrup-leg adjustment mechanism 25 may be placed above the plane of the subjected-to-generation product.
  • stirrup-leg adjustment mechanism 25 may be located either under the plane of the under-production part or above it.
  • stirrup-leg adjustment mechanism 25 may trap the free leg 5 of the planar stirrup 9 with the aid of grip.
  • the free leg 5 may be trapped also with the aid of a suitable grip in place of the hook 17 .
  • a stirrup machine with a stirrup-leg adjustment mechanism 25 may include a suitable electronic computer for the maintenance, coordination, and control of all the functions of the process of production of the three-dimensional stirrup 1 a .
  • a suitable electronic computer for the maintenance, coordination, and control of all the functions of the process of production of the three-dimensional stirrup 1 a .
  • To this suitable electronic computer are entered the necessary product characteristics for the production of the three-dimensional product 1 a .
  • the coordination and control of all the functions of the process of production of the three-dimensional stirrup 1 a may preferably be effected by a suitable electronic computer, in which are entered all necessary data, such as product characteristics for the production of the product.
US11/740,125 2006-05-04 2007-04-25 Machine and process for production of three-dimensional stirrups Abandoned US20070256466A1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GR20060100262A GR1005871B (el) 2006-05-04 2006-05-04 Μεθοδος και μηχανισμος παραγωγης τρισδιαστατων τσερκιων.
GR20060100262 2006-05-04

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US (1) US20070256466A1 (da)
EP (1) EP1852195B1 (da)
DE (1) DE602007008499D1 (da)
DK (1) DK1852195T3 (da)
ES (1) ES2352995T3 (da)
GR (1) GR1005871B (da)
PL (1) PL1852195T3 (da)

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20100147048A1 (en) * 2008-12-17 2010-06-17 Automated Industrial Machinery, Inc. Dba Aim, Inc. Devices, Systems and Methods for Automated Wire Bending
US20120279274A1 (en) * 2009-11-24 2012-11-08 M.E.P. Macchine Elettroniche Piegatrici Spa Apparatus for Bending Elongated Metal Elements, Such as Metal Bars, round Pieces or Wire, and Relative Bending Method
ITUD20110143A1 (it) * 2011-09-13 2013-03-14 Piegatrici Macch Elettr Dispositivo di correzione della sagoma di una barra metallica piegata e relativo procedimento di correzione della sagoma
US20160271672A1 (en) * 2013-10-14 2016-09-22 A.C.M. Srl Automatismi Costruzione Meccaniche Apparatus for bending oblong metal products, such as bars, round pieces or metal wires, and corresponding bending method
DE102018221152A1 (de) * 2018-12-06 2020-06-10 Otto Bihler Handels-Beteiligungs-Gmbh Maschine zum herstellen von drahtelementen
CN114514079A (zh) * 2019-10-10 2022-05-17 瓦连京·托多罗夫·基洛夫 用于生产加强型坯件的自动化机器和方法
US20220266325A1 (en) * 2021-02-24 2022-08-25 Ruentex Engineering & Construction Co., Ltd. Apparatus and method for manufacturing continuous stirrup
WO2024007730A1 (zh) * 2022-07-04 2024-01-11 北京机械工业自动化研究所有限公司 一种金属线自动折弯机及其自动折弯方法

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108568484B (zh) * 2018-04-23 2020-09-15 林向亮 一种箍筋的自动弯折方法

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US919206A (en) * 1908-01-07 1909-04-20 James C Newlin Rod-bending tool.
US1425261A (en) * 1920-06-25 1922-08-08 Kardong Theodore Bar bender
US1512002A (en) * 1922-07-11 1924-10-14 Kardong Theodore Stirrup-bending machine
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US5497643A (en) * 1994-02-16 1996-03-12 Ars Corporation Remote bending apparatus
US5499522A (en) * 1993-10-21 1996-03-19 Schwarze; Rigobert Double-head pipe bending machine
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US6997030B1 (en) * 2005-01-14 2006-02-14 Jason Brian Williams Rebar bending tool

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US235538A (en) * 1880-12-14 Wire-bending machine
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US1425261A (en) * 1920-06-25 1922-08-08 Kardong Theodore Bar bender
US1512002A (en) * 1922-07-11 1924-10-14 Kardong Theodore Stirrup-bending machine
US1903799A (en) * 1927-09-24 1933-04-18 Wagenbach Anton Bending machine
US2428237A (en) * 1944-07-15 1947-09-30 Imp Brass Mfg Co Portable hand-operated tube bending tool
US2805698A (en) * 1953-11-02 1957-09-10 Homer O Southworth Indexable work holder for bending machine
US2782832A (en) * 1955-04-26 1957-02-26 Pedrick Tool And Machine Co Bending machines
US3260091A (en) * 1963-05-24 1966-07-12 Pedrick Tool And Machine Compa Bending machine
US3438237A (en) * 1965-04-24 1969-04-15 Remo Sisler Apparatus for shaping metal rods
US3563283A (en) * 1967-07-05 1971-02-16 Mash Z Mir Automatic machine for making stirrups and structural reinforcement
US3908425A (en) * 1974-01-04 1975-09-30 Donald G Ware Rod bending apparatus and method
US4161110A (en) * 1977-04-28 1979-07-17 EVG Entwicklungs- und Verwertungs-Gesellschaft mbH. Automatic control device for a bending machine
US5195348A (en) * 1990-12-17 1993-03-23 M.E.P. Macchine Elettroniche Piegatrici Spa Bending-shaping machine for sections and method to apply bends in the trailing end of sections
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US5499522A (en) * 1993-10-21 1996-03-19 Schwarze; Rigobert Double-head pipe bending machine
US5497643A (en) * 1994-02-16 1996-03-12 Ars Corporation Remote bending apparatus
US5511402A (en) * 1994-12-16 1996-04-30 Kauffman; Kenneth A. Optimizing controller
US6997030B1 (en) * 2005-01-14 2006-02-14 Jason Brian Williams Rebar bending tool

Cited By (21)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2010080522A2 (en) * 2008-12-17 2010-07-15 Automated Industrial Machinery, Inc. Devices, systems and methods for automated wire bending
WO2010080522A3 (en) * 2008-12-17 2010-10-07 Automated Industrial Machinery, Inc. Devices, systems and methods for automated wire bending
EP2514536A1 (en) * 2008-12-17 2012-10-24 Automated Industrial Machinery, Inc. Device and method for automated wire bending
US8631674B2 (en) 2008-12-17 2014-01-21 Aim, Inc. Devices, systems and methods for automated wire bending
EP3213836A1 (en) * 2008-12-17 2017-09-06 Automated Industrial Machinery, Inc. Device and method for automated wire bending
US20100147048A1 (en) * 2008-12-17 2010-06-17 Automated Industrial Machinery, Inc. Dba Aim, Inc. Devices, Systems and Methods for Automated Wire Bending
KR101757631B1 (ko) 2009-11-24 2017-07-14 엠.이.피. 머신 일레트로니쉐 피에가트리치 에스피에이 금속 봉, 둥근 피스 또는 와이어 같은 연신형 금속 요소의 굽힘 장치 및 그 굽힘 방법
US20120279274A1 (en) * 2009-11-24 2012-11-08 M.E.P. Macchine Elettroniche Piegatrici Spa Apparatus for Bending Elongated Metal Elements, Such as Metal Bars, round Pieces or Wire, and Relative Bending Method
US9566636B2 (en) * 2009-11-24 2017-02-14 M.E.P. Macchine Elettroniche Piegatrici Spa Apparatus for bending elongated metal elements, such as metal bars, round pieces or wire, and relative bending method
ITUD20110143A1 (it) * 2011-09-13 2013-03-14 Piegatrici Macch Elettr Dispositivo di correzione della sagoma di una barra metallica piegata e relativo procedimento di correzione della sagoma
WO2013037725A1 (en) * 2011-09-13 2013-03-21 M.E.P. Macchine Elettroniche Piegatrici Spa Device for correcting the shape of a bent metal bar and corresponding method
CN103930221A (zh) * 2011-09-13 2014-07-16 Mep意大利美普机械制造有限公司 用来校正弯曲的金属杆的形状的装置和对应的方法
CN106029246A (zh) * 2013-10-14 2016-10-12 Acm自动建设机械股份有限公司 用于使例如棒、圆形工件、金属线的长圆形金属制品弯曲的装置及相应的弯曲方法
US20160271672A1 (en) * 2013-10-14 2016-09-22 A.C.M. Srl Automatismi Costruzione Meccaniche Apparatus for bending oblong metal products, such as bars, round pieces or metal wires, and corresponding bending method
US10232425B2 (en) * 2013-10-14 2019-03-19 A.C.M. Srl Automatismi Contruzioni Meccaniche Apparatus for bending oblong metal products, such as bars, round pieces or metal wires, and corresponding bending method
DE102018221152A1 (de) * 2018-12-06 2020-06-10 Otto Bihler Handels-Beteiligungs-Gmbh Maschine zum herstellen von drahtelementen
CN114514079A (zh) * 2019-10-10 2022-05-17 瓦连京·托多罗夫·基洛夫 用于生产加强型坯件的自动化机器和方法
US11712728B2 (en) 2019-10-10 2023-08-01 Valentin Todorov Kirov Automatic machine and method for producing reinforcement blanks
US20220266325A1 (en) * 2021-02-24 2022-08-25 Ruentex Engineering & Construction Co., Ltd. Apparatus and method for manufacturing continuous stirrup
US11819897B2 (en) * 2021-02-24 2023-11-21 Ruentex Engineering & Construction Co., Ltd. Apparatus and method for manufacturing continuous stirrup
WO2024007730A1 (zh) * 2022-07-04 2024-01-11 北京机械工业自动化研究所有限公司 一种金属线自动折弯机及其自动折弯方法

Also Published As

Publication number Publication date
EP1852195A3 (en) 2008-02-27
EP1852195A2 (en) 2007-11-07
DE602007008499D1 (de) 2010-09-30
ES2352995T3 (es) 2011-02-24
EP1852195B1 (en) 2010-08-18
DK1852195T3 (da) 2010-10-25
GR20060100262A (el) 2008-01-16
GR1005871B (el) 2008-04-15
PL1852195T3 (pl) 2011-02-28

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