EP2614901B1 - Method and machine for manufacturing continuous bent profiles - Google Patents

Method and machine for manufacturing continuous bent profiles Download PDF

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Publication number
EP2614901B1
EP2614901B1 EP12193338.6A EP12193338A EP2614901B1 EP 2614901 B1 EP2614901 B1 EP 2614901B1 EP 12193338 A EP12193338 A EP 12193338A EP 2614901 B1 EP2614901 B1 EP 2614901B1
Authority
EP
European Patent Office
Prior art keywords
wire
metal rod
carriage
structural sections
production
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.)
Not-in-force
Application number
EP12193338.6A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP2614901A1 (en
Inventor
Claudio Bernardinis
Sergio Benedetti
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.)
AWM SpA
Original Assignee
AWM SpA
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Filing date
Publication date
Application filed by AWM SpA filed Critical AWM SpA
Publication of EP2614901A1 publication Critical patent/EP2614901A1/en
Application granted granted Critical
Publication of EP2614901B1 publication Critical patent/EP2614901B1/en
Not-in-force legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • 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
    • 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
    • B21D11/06—Bending into helical or spiral form; Forming a succession of return bends, e.g. serpentine form
    • B21D11/07—Making serpentine-shaped articles by bending essentially in one plane
    • 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
    • B21F1/04—Undulating

Definitions

  • the present invention relates to a method and a machine for the production of wires or metal rods in order to produce continuous bent structural sections to be used to form electro-welded lattice girders, normally used in the building construction field, according to the preamble of claim 1 and 4 respectively.
  • Patent IT 1238992 describes a method and a machine for the formation of continuous bent structural sections for electro-welded lattice girders, according to the preamble of claims 1 and 4 respectively, wherein the rectilinear wire is made to pass through two opposing and reciprocally adjustable chains, having triangular shaped teeth or plates intersecting each other, so as to bend it in the form of a broken or continuous line.
  • This situation has the inconvenience of requiring specific and difficult nearing and distancing operations of the two chains and/or substitution of the teeth or shaped carried by the chain links in order to adjust the amplitude of the bendings.
  • the object of the invention is to provide a method and a machine for the production of continuous bent structural sections to be used to form electro-welded lattice girders, which can overcome the inconveniences of the known prior art giving a solution which provides very precise and reliable results.
  • a further object of the invention is to produce continuous bent structural sections, starting from a wire or metal rod, with an adjustable height in a completely automated way, that is without the necessity of modifying the machine substituting the shaping operating elements.
  • Another object of the invention is to enable the production of continuous bent structural sections also with an asymmetrical configuration, that is with alternating inclined and vertical parts, as well as parts having different inclination and therefore different lengths.
  • a machine according to an embodiment of the invention comprises - as schematically shown in figures from 1 to 5 - few essential elements;
  • the wire or the metal rod 10 is fed through a feeding carriage 11, which is slidable on adapted rails 12 horizontal and integral with the machine frame (not shown) and which is driven by an electrical servomotor 13 through an articulated mechanism 14, such as linkwork.
  • the carriage 11 can therefore move alternatively and is equipped with a gripper 15 or similar means, which grips and drags wire 10 in the feeding step for a length the same as the "pitch" of the required bending, and releases it in the return travel.
  • An accompanying carriage 16 of the wire 10 is controlled in synchronism with the feeding carriage 11 in order to slide on adapted rails 17, equivalent to rails 12, so as to move alternatively in a direction reciprocally opposed to that of the feeding carriage 11 movement.
  • the accompanying carriage 16 is equipped with a gripper 18, or similar means, which grips the wire 10 in the feeding step and releases it in the return travel.
  • the formation of the structural section is made through a shaping arm 20 mounted on the machine frame and which is able to move vertically in an alternative compound motion through an articulated quadrilateral mechanism 21, driven by an electric servomotor, or equivalent means (not shown), through a series of gearwheels 22, 23, 24.
  • the shaping arm 20 ends at its lower end with a gripping means 25, to engage the wire or metal rod 10 to bend.
  • the shaping arm 20 also cooperates with a positioning device 26, which is provided with at least a couple of restraining elements 27 suitable to lock the wire 10 during the bending step and release it during the feeding and the unloading steps.
  • a positioning device 26 which is provided with at least a couple of restraining elements 27 suitable to lock the wire 10 during the bending step and release it during the feeding and the unloading steps.
  • the first restraining element 27 which encounters the wire 10 during its feeding has also the function of a bending tool corresponding to that of tool 19.
  • the wire or the metal rod 10 is first ( figure 1 ) in the gripper 15 of the feeding carriage 11 and then in the gripper 18 of the accompanying carriage 16 and the bending tool 19, making it arrive at the positioning device 26 were it is locked by the first restraining element it meets.
  • the feeding carriage 11 can start its return travel from the farthest feeding position of the wire 10, which is disengaged by the gripper 15 that is open.
  • the accompanying carriage 16 can start its advancement travel with the wire gripped in the gripper 18.
  • the shaping arm 20 is in its lower position with its gripper 25 placed below the wire 10 in a gripping position of the latter.
  • the shaping arm 20 is operated and it starts its travel vertically upward following a curvilinear trajectory lifting the wire 10 which is engaged to the gripper 25.
  • the feeding carriage 11 makes a return travel, while the accompanying carriage 16 moves in the opposite direction accompanying the wire 10 in its lifting.
  • the wire 10 is locked in the gripper 18 of the accompanying carriage 16 and in the first restraining element 27 of the bending tool 19.
  • the distance A between the fulcrum of the arms of the articulated quadrilateral 21 and the axes of the gearwheels 23, 24, 25 determines the constant height of the bent structural section, because the arms of the articulated quadrilateral 21 rotate by a constant angle by means of the gearwheels 22, 23, 24.
  • the adjustment of the distance A can be operated manually and/or through automatic devices known in themselves.
  • the shaping arm 20 When the shaping arm 20 has reached the highest position ( figure 3 ), corresponding to the height of the Greek fret-shaped structural section to be obtained, the accompanying carriage 16 has reached the end of its feeding travel and the bending tool 19 determines the lower bending point of the Greek fret-shaped structural section. At the same time, the feeding carriage 11 has reached the end of its return travel with the wire still disengaged from the gripper 15, but locked in the gripper 18. The front end of the wire 10 is still locked in the first restraining element 27.
  • the gripper 25 of the shaping arm 20 is unlocked from the wire 10, after which the shaping arm 20 starts its downward travel.
  • the gripper 18 of the accompanying carriage 16 is opened releasing the wire 10 and the carriage starts its return travel.
  • the wire 10 is gripped by the gripper 15 of the feeding carriage 11 which restarts its wire feeding travel.
  • the first restraining element 27 of the bending tool 19 is open and so is the second restraining means wherein the bent wire is caused to pass.
  • the shaping arm 20 continues its downward travel until the gripper 25 is made to be engaged with the wire 10.
  • the feeding carriage 11, having the gripper 15 engaged with the wire 10, continues its wire feeding travel, while the accompanying carriage 16 completes its return travel.
  • the described method and machine fully achieve the objects of the invention, in particular making it possible to obtain, with very simple and reliable means, continuous bent structural sections in order to form electro-welded lattice girders in the required shapes and dimensions, to be used in the field of building construction.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Bending Of Plates, Rods, And Pipes (AREA)
  • Wire Processing (AREA)
  • Folding Of Thin Sheet-Like Materials, Special Discharging Devices, And Others (AREA)
EP12193338.6A 2012-01-16 2012-11-20 Method and machine for manufacturing continuous bent profiles Not-in-force EP2614901B1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
IT000001A ITPN20120001A1 (it) 2012-01-16 2012-01-16 Metodo e macchina per la produzione di profilati piegati continui

Publications (2)

Publication Number Publication Date
EP2614901A1 EP2614901A1 (en) 2013-07-17
EP2614901B1 true EP2614901B1 (en) 2013-12-11

Family

ID=46000162

Family Applications (1)

Application Number Title Priority Date Filing Date
EP12193338.6A Not-in-force EP2614901B1 (en) 2012-01-16 2012-11-20 Method and machine for manufacturing continuous bent profiles

Country Status (2)

Country Link
EP (1) EP2614901B1 (it)
IT (1) ITPN20120001A1 (it)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107224104A (zh) * 2017-06-05 2017-10-03 安徽省潜山县长中刷业有限公司 一种盘刷金属刷丝折弯扦插装置
CN107259780A (zh) * 2017-06-05 2017-10-20 安徽省潜山县长中刷业有限公司 一种多功能盘刷金属刷丝扦插装置
CN107319737A (zh) * 2017-06-05 2017-11-07 安徽省潜山县长中刷业有限公司 一种盘刷金属刷丝折弯装置

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108465758B (zh) * 2018-05-07 2023-10-20 江苏巨力钢绳有限公司 一种钢丝绳加工用金属丝锁死装置
CN110523820B (zh) * 2019-08-27 2024-07-05 建科机械（天津）股份有限公司 摆动式桁架步进装置及桁架生产系统
CN110508715B (zh) * 2019-08-27 2024-07-05 建科机械（天津）股份有限公司 桁架侧筋成型装置及桁架侧筋成型方法
CN115351194A (zh) * 2022-09-23 2022-11-18 跃科智能制造(无锡)有限公司 一种扁铜线折弯成型设备

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE623124C (de) * 1933-10-03 1935-12-13 Ernst Herfel Maschine zum Biegen von Staeben oder Blechen in Zickzackform
DE2063041C3 (de) * 1970-11-26 1974-04-25 Franz Wels Oberoesterreich Filzmoser (Oesterreich) Einrichtung zum Biegen von Stäben u.dgl
FR2193659B3 (it) * 1972-07-27 1975-09-05 Keller Klaus
DE2246392C3 (de) * 1972-09-21 1975-06-19 Klaus Dipl.-Ing. 8192 Geretsried Keller Vorrichtung zum Biegen von Strebenschlangen
FR2223099A1 (en) * 1973-03-26 1974-10-25 Cometube Method of mfg. tubular metal framework - involves bending tube at multiple points, with flattening at gripping point
IT1238992B (it) * 1990-02-13 1993-09-17 Promelco Procedimento e macchina zetatrice per la formazione di greche per tralicci elettrosaldati

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107224104A (zh) * 2017-06-05 2017-10-03 安徽省潜山县长中刷业有限公司 一种盘刷金属刷丝折弯扦插装置
CN107259780A (zh) * 2017-06-05 2017-10-20 安徽省潜山县长中刷业有限公司 一种多功能盘刷金属刷丝扦插装置
CN107319737A (zh) * 2017-06-05 2017-11-07 安徽省潜山县长中刷业有限公司 一种盘刷金属刷丝折弯装置
CN107224104B (zh) * 2017-06-05 2019-02-12 安徽长中刷业有限公司 一种盘刷金属刷丝折弯扦插装置
CN107319737B (zh) * 2017-06-05 2019-02-15 安徽长中刷业有限公司 一种盘刷金属刷丝折弯装置
CN107259780B (zh) * 2017-06-05 2019-02-15 安徽长中刷业有限公司 一种多功能盘刷金属刷丝扦插装置

Also Published As

Publication number Publication date
ITPN20120001A1 (it) 2013-07-17
EP2614901A1 (en) 2013-07-17

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