EP0875308A2 - Automatische Stab- und/oder Draht vorder- und hinterendenenbiegeeinheit für Biegevorrichtungen und/oder lichtbogengeschweisste Baustahlnetzenvormvorrichtungen - Google Patents

Automatische Stab- und/oder Draht vorder- und hinterendenenbiegeeinheit für Biegevorrichtungen und/oder lichtbogengeschweisste Baustahlnetzenvormvorrichtungen Download PDF

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Publication number
EP0875308A2
EP0875308A2 EP98104410A EP98104410A EP0875308A2 EP 0875308 A2 EP0875308 A2 EP 0875308A2 EP 98104410 A EP98104410 A EP 98104410A EP 98104410 A EP98104410 A EP 98104410A EP 0875308 A2 EP0875308 A2 EP 0875308A2
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EP
European Patent Office
Prior art keywords
bending
template
reinforcing rod
reinforcing
rod
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.)
Withdrawn
Application number
EP98104410A
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English (en)
French (fr)
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EP0875308A3 (de
Inventor
Claudio Bernardinis
Carino Zebelloni
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Individual
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Individual
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Publication date
Application filed by Individual filed Critical Individual
Publication of EP0875308A2 publication Critical patent/EP0875308A2/de
Publication of EP0875308A3 publication Critical patent/EP0875308A3/de
Withdrawn legal-status Critical Current

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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
    • B21D7/00—Bending rods, profiles, or tubes
    • B21D7/06—Bending rods, profiles, or tubes in press brakes or between rams and anvils or abutments; Pliers with forming dies
    • 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
    • B21F27/14—Specially bending or deforming free wire ends

Definitions

  • the present patent relates to an automatic bending unit suitable for the head and tail bending of reinforcing rod and/or wire of homogeneous and non-homogeneous cross section, for automatic bending machines and/or automatic machines for the formation of arc-welded steel mesh before the mesh arc-welding unit.
  • the unit includes a rocking-lever device and/or other devices serving as bending templates positioned according to the type of bends to make, head or tail, driven by an appropriate oscillating hydraulic cylinder and/or cam and/or other equivalent device, positioned and controlled in coordination with another device with a counteracting function that presses in the fulcrum position the reinforcing rod and/or wire to be bent.
  • Bending units for the heads or tails of bar and rod iron used in automatic bending machines are known in the present state of the art; however, no similar bending units on automatic machines for the construction of arc-welded steel mesh are known.
  • the objective of this invention is a mechanical unit which is driven advantageously, but not necessarily by a hydraulic system, and control-led automatically, by means known to those skilled in the art, that is very compact and thus makes it possible to be used side by side with a plurality of other similar units, each of said units operating on reinforcing rods set at different pitches according to the geometrical characteristics of the steel mesh being fabricated.
  • This unit is built to meet the requirements of plants or machines for the construction of arc-welded steel mesh, however it can also be used on other automatic bending machines where there is the requirement of carrying out bends of approximately 10° to 90°, at the heads or tails of reinforcing rods or wires.
  • each unit is independently controlled and operates individually on the corresponding reinforcing rod or wire.
  • the mesh being formed can have the rods with the ends bent even if it does not have an even geometrical configuration, for example for peripherally shaped mesh and/or mesh with shaped internal voids (particularly in the fabrication of prefabricated elements for construction purposes).
  • the invention consists essentially, in a preferred but not exclusive embodiment, of a two-position, rocking-lever, bidirectional template pivoted in the middle on a pin that is orthogonal to the direction of progress of the reinforcing rod to be bent.
  • On the template are cut one or more wire paths and it contains, parallel to the pivot pin, at a position equidistant from the same pin, two opposite bending stopper elements.
  • Said bending template or lever is also provided, in its lower part, with a lever-operated power device driven and rotated by two hydraulic cylinders to provide the pushing and thus the bending action in the desired direction of head and/or tail bending.
  • the pushing cylinder is pivoted at a point below the middle point of the template and is guided in its two points of action by another cylinder that acts by means of a lever system directly on its hinging axis or by means of an arm, guiding the cylinder in its proper operating direction.
  • the reinforcing rod head and/or tail bending phases are carried out (automatically) after having prepared the ends to be bent above the rocking template or other bending lever suitable for the purpose:
  • the unit according to the present invention is particularly suitable, thanks to its compactness and small size, for being integrated in automatic machines for making arc-welded steel mesh, and precisely downstream of the wire or reinforcing rod straightening unit and upstream of the automatic mesh arc-welding unit.
  • the rocking-lever bending template can be shaped in the wire path part in a manner such as to be able to operate on a single reinforcing rod or on a plurality of rods, with one or more individual seats, or with wider seats suitable for containing a plurality of reinforcing rods side by side or slightly separated and parallel to each other.
  • bidirectional template can be validly substituted, while providing the same functions, with other bending levers in individual units independent of each other, and each capable of operating on one or more reinforcing rods even for bends of only one type.
  • a further variation of the present invention consists of the fact that it is possible to use any technique of construction known to those skilled in the art for making the force-applying device (e.g., of hydraulic and/or mechanical and/or pneumatic type) and its automation to achieve the advantageous objectives of the invention.
  • the hydraulic bending unit for the head (2) and tail (3) ends of reinforcing rods (1) and/or wire for bending machines and/or automatic machines for the formation of arc-welded mesh is arranged vertically and consists of a very compact mechanical-hydraulic apparatus designed to allow the side-by-side arrangement of a plurality of the individual units and thus to operate simultaneously on a plurality of reinforcing rods (1), advancing horizontally, for the subsequent formation of the arc-welded mesh (4).
  • the individual or multiple unit is integrated in the arc-welded steel mesh production line, downstream of the rod straightening unit and upstream of the automatic welding unit that welds the mesh wires perpendicularly to each other. In this position, it can be easily anchored to the structure of the machine or it can be built independently, with its own base and frame forming a self-standing machine.
  • Said unit in a first embodiment, is arranged vertically so as to operate perpendicularly to the direction of progress of the reinforcing rods (1).
  • the hydraulic cylinder (5) is hinged at its lower end (6) and can be swung by another hydraulic cylinder (8) that acts directly on the former at (9).
  • the stem attachment (7) is hinged to the through guide (12) of the rocking template (10) which is itself pivoted on the central pivot (11) placed perpendicularly to the direction of progress of the reinforcing rod (1).
  • the template (10) is of symmetrical type with respect to the constraining pin (11) and is provided with opposite equidistant stopper elements (13) that will be the points at which the rod bending force acts.
  • the cylinder (5) can operate in a position on the right or on the left of the pivot pin of the template (10), and in this manner the template will move upward on the right or on the left, imparting the action of force on the straight reinforcing rod to be bent.
  • the reinforcing rod (1) is guided upstream and downstream inside a special guide (14) or channel having the shape of a vertical oval that allows the vertical movement of the reinforcing rod.
  • a special guide (14) or channel having the shape of a vertical oval that allows the vertical movement of the reinforcing rod.
  • the template (10) is another hydraulic cylinder (15), which is vertically mounted and provided with downward moving piston, having the function of a counteracting element, provided with a shaping rod (16) which meets the upper circular part (17) or the template (10), for positioning the reinforcing rod (1) and favouring the bending phase in the desired shape.
  • two counteracting stopper elements (18) that are equidistant with respect to the horizontal pivotal axis of the template (10), and perpendicular with respect to the direction of progress of the reinforcing rod to be bent.
  • two other stopper elements (19) are themselves perpendicular to the path of the reinforcing rods to be bent. They have the function of counteracting elements, downstream or upstream, for the reinforcing rods during the bending phase and at the same time serve to guide the reinforcing rods inside the channel (14).
  • the unit comprised of three hydraulic cylinders (5, 8, 15), is programmed, powered and controlled with known techniques, with the object of carrying out shaped bends, at angles from 10° to 90°, on the head or tail of reinforcing rods that will make up the arc-welded steel mesh.
  • the operating procedure is similar, but with the actuation of the left part of the template, to carry out the bend for shaping the tail of the reinforcing rod upwardly.
  • the following describes a possible variation of the force-applying device used for bending the reinforcing rod (1) using another technical mechanical embodiment starting from the bending lever (26) pivoted at (27) and having the equidistant stopper elements (28).
  • the lever (26) On the lever (26), on the same middle axis, is pivoted the shackle joint (25) and on the pin (24) is articulated the shaping rod of the hydraulic cylinder (23), which is hinged in turn at (22) and is swung in the three positions (for right bending, left bending or central idle position) by means of the arm (21) driven by the hydraulic cylinder (20) or by another means suitable for the purpose.
  • the operating cycle is similar to that previously described for the first embodiment.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Wire Processing (AREA)
  • Bending Of Plates, Rods, And Pipes (AREA)
EP98104410A 1997-04-01 1998-03-11 Automatische Stab- und/oder Draht vorder- und hinterendenenbiegeeinheit für Biegevorrichtungen und/oder lichtbogengeschweisste Baustahlnetzenvormvorrichtungen Withdrawn EP0875308A3 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
ITUD970058 1997-04-01
IT97UD000058A IT1290741B1 (it) 1997-04-01 1997-04-01 Gruppo automatico di piegatura di testa e coda di tondini e/o fili metallici per macchine piegatrici e/o macchine di formazione

Publications (2)

Publication Number Publication Date
EP0875308A2 true EP0875308A2 (de) 1998-11-04
EP0875308A3 EP0875308A3 (de) 2002-01-16

Family

ID=11422361

Family Applications (1)

Application Number Title Priority Date Filing Date
EP98104410A Withdrawn EP0875308A3 (de) 1997-04-01 1998-03-11 Automatische Stab- und/oder Draht vorder- und hinterendenenbiegeeinheit für Biegevorrichtungen und/oder lichtbogengeschweisste Baustahlnetzenvormvorrichtungen

Country Status (2)

Country Link
EP (1) EP0875308A3 (de)
IT (1) IT1290741B1 (de)

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2014049559A1 (en) * 2012-09-28 2014-04-03 Antonios Anagnostopoulos Products, system, and method for the placement of covers on end of wires of spacer meshes
CN109550868A (zh) * 2018-12-31 2019-04-02 浙江伏尔特医疗器械股份有限公司 硬膜外麻醉穿刺针的自动折弯角度定型加工装置
CN111589916A (zh) * 2020-06-03 2020-08-28 诸暨市裕荣弹簧有限公司 一种太阳能弹簧组合拉杆折弯机
IT201900004707A1 (it) 2019-03-29 2020-09-29 Awm Spa Unità di piegatura automatica di elementi metallici filiformi di reti elettrosaldate e relativo procedimento di piegatura
CN112828207A (zh) * 2021-02-02 2021-05-25 昆山明益信智能设备有限公司 自动化引脚焊接设备
CN114850264A (zh) * 2022-04-24 2022-08-05 四川天法科技有限公司 一种稳焰器生产加工装置
CN114850356A (zh) * 2022-04-19 2022-08-05 河北骄阳焊工有限公司 人防网折弯装置和使用该装置进行人防网折弯的方法
CN119304603A (zh) * 2024-09-27 2025-01-14 杭州威卡装配式设备有限公司 一种钢筋网片及钢筋网笼的加工流水线
CN119927105A (zh) * 2025-03-07 2025-05-06 青岛倍速得汽车部件有限公司 一种金属丝网成型方法

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2210455B1 (de) * 1972-12-20 1979-04-06 Mingori Rene
US4141235A (en) * 1976-09-18 1979-02-27 Masamitsu Ishihara Hydraulic bending machine
FR2464109A1 (fr) * 1979-09-03 1981-03-06 Unicum Sa Appareil a cintrer les tubes en forme de chapeau de gendarme ou en esse

Cited By (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US9956602B2 (en) 2012-09-28 2018-05-01 Antonios Anagnostopoulos Products, systems, and methods for placement of covers on metallic spacers of concrete reinforcement
WO2014049559A1 (en) * 2012-09-28 2014-04-03 Antonios Anagnostopoulos Products, system, and method for the placement of covers on end of wires of spacer meshes
CN109550868B (zh) * 2018-12-31 2023-10-31 浙江伏尔特医疗器械股份有限公司 硬膜外麻醉穿刺针的自动折弯角度定型加工装置
CN109550868A (zh) * 2018-12-31 2019-04-02 浙江伏尔特医疗器械股份有限公司 硬膜外麻醉穿刺针的自动折弯角度定型加工装置
IT201900004707A1 (it) 2019-03-29 2020-09-29 Awm Spa Unità di piegatura automatica di elementi metallici filiformi di reti elettrosaldate e relativo procedimento di piegatura
EP3715007A1 (de) 2019-03-29 2020-09-30 A.W.M. S.p.A. Automatische biegeeinheit für metalldrahtelemente von elektrogeschweissten gittern und zugehöriges biegeverfahren
CN111589916A (zh) * 2020-06-03 2020-08-28 诸暨市裕荣弹簧有限公司 一种太阳能弹簧组合拉杆折弯机
CN111589916B (zh) * 2020-06-03 2022-02-18 诸暨市裕荣弹簧有限公司 一种太阳能弹簧组合拉杆折弯机
CN112828207A (zh) * 2021-02-02 2021-05-25 昆山明益信智能设备有限公司 自动化引脚焊接设备
CN114850356A (zh) * 2022-04-19 2022-08-05 河北骄阳焊工有限公司 人防网折弯装置和使用该装置进行人防网折弯的方法
CN114850264A (zh) * 2022-04-24 2022-08-05 四川天法科技有限公司 一种稳焰器生产加工装置
CN114850264B (zh) * 2022-04-24 2024-02-09 四川天法科技有限公司 一种稳焰器生产加工装置
CN119304603A (zh) * 2024-09-27 2025-01-14 杭州威卡装配式设备有限公司 一种钢筋网片及钢筋网笼的加工流水线
CN119304603B (zh) * 2024-09-27 2025-10-10 杭州威卡装配式设备有限公司 一种钢筋网片及钢筋网笼的加工流水线
CN119927105A (zh) * 2025-03-07 2025-05-06 青岛倍速得汽车部件有限公司 一种金属丝网成型方法

Also Published As

Publication number Publication date
EP0875308A3 (de) 2002-01-16
ITUD970058A1 (it) 1998-10-01
ITUD970058A0 (de) 1997-04-01
IT1290741B1 (it) 1998-12-10

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