EP2919928A1 - Automatische maschine zum biegen von elektrogeschweissten geflechten - Google Patents

Automatische maschine zum biegen von elektrogeschweissten geflechten

Info

Publication number: EP2919928A1
Authority: EP; European Patent Office
Prior art keywords: bending; pins; machine; mesh; electro
Prior art date: 2012-11-19
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

EP13801809.8A

Other languages

English (en)

French (fr)

Other versions

EP2919928B1 (de

Inventor

Claudio Bernardinis

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

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.)

2012-11-19

Filing date

2013-11-04

Publication date

2015-09-23

2013-11-04 Application filed by AWM SpA filed Critical AWM SpA

2013-11-04 Priority to HRP20161592TT priority Critical patent/HRP20161592T1/hr

2013-11-04 Priority to PL13801809T priority patent/PL2919928T3/pl

2013-11-04 Priority to SI201330431A priority patent/SI2919928T1/sl

2013-11-04 Priority to RS20161072A priority patent/RS55407B1/sr

2015-09-23 Publication of EP2919928A1 publication Critical patent/EP2919928A1/de

2016-09-21 Application granted granted Critical

2016-09-21 Publication of EP2919928B1 publication Critical patent/EP2919928B1/de

Status Active legal-status Critical Current

2033-11-04 Anticipated expiration legal-status Critical

Links

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
- B21D11/10—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
- B21D11/125—Bending wire nets
- 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
- 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 [3D] extent, e.g. lattice girders
- 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

Definitions

the present invention is relative to an automatic machine for bending electro- welded meshes, such as are used in the production of prefabricated reinforced concrete components.
the automatic bending machines can currently be used only for regular shapings, and they are not suitable to meet the demand for components having complex shapes, such as chamfers, recesses and also internal openings.
a main objective of the invention is to provide an automatic machine for bending electro-welded meshes, that overcomes the drawbacks of the prior art by offering a solution that gives very accurate and reliable results, while eliminating the machine down times required for adjusting the operating shaping elements.
the bending machine according to the invention achieves the objective of increasing productivity and offering great operating flexibility, as it is capable of bending single wires or multiple wires at the same time, without limitations in their position on the plane of the electro-welded mesh.
a further objective of the invention is to produce continuous-mode bent elements of variable height, made of metal wires or rods, in a completely automatic manner without the necessity of modifying the machine by replacing the operating shaping elements.
Another objective of the invention is to make it possible to produce continuous- mode bent elements having an asymmetric configuration, that is to say, with alternating inclined and vertical sections, as well as with sections having different inclinations and therefore different lengths.
FIG. 1 is a partial perspective view of an electro-welded mesh bent according to the prior art ;
FIG. 3A illustrates schematically a top view of a bending unit in an automatic bending machine according to the invention
figure 3C illustrates schematically a top view of a machine provided with two opposed bending units, like the one of figure 3B, wherein the bending units are mounted on a deck movable in the same feed direction as the mesh;
FIG. 4A and 4B illustrate the bending unit of figure 3A according, respectively, to the cross sections A-A and B-B;
FIG. 6A illustrates a front view of the electro-welded mesh bending machine having at its right and left ends the two mechanisms for repositioning the bending pins or pawls;
FIG. 9A illustrates the mechanism for repositioning the bending pins or pawls in the operating position
Figure 3A displays a central bending pin or pawl 2, two bending pins 2-1 arranged on the left side and two bending pins 2-2 arranged on the right side. These bending pins are controlled selectively and independently of each other by a centralized machine control unit (non shown), according to a program depending on the shape of the bent mesh that is to be obtained. Naturally, the number of side pins is not binding and depends on the maximum number of wires that need to be bent.
FIG 3A a central bending arm 3, a right bending arm 4 and a left bending arm 4-1 ; said bending arms are connected to the bending unit and are controlled selectively and independently of each other so as to move in a composite motion, in a coordinated manner with the corresponding bending pins, as will be seen below.
FIG 3A In figure 3A are also shown a central mobile pin support 5, a right lateral mobile pin support 6 and a left lateral mobile pin support 6-1 . These mobile pin supports are also controlled independently of one another.
Figure 3B illustrates schematically a top view of a machine provided with two bending units U1 and U2, like the one of figure 3A, opposed to each other on the two sides of the mesh R.
the mesh is movable in a rectilinear direction as is shown by the arrow in the figure along a running deck, driven by any known means (not shown in the figure) suitable for this purpose.
FIG 3C is a schematic top view of the machine equipped with the two bending units U1 and U2 as in the embodiment shown in figure 3B, in which the bending units are installed on a deck P arranged transversally to the longitudinal axis of the mesh R.
the deck P is driven to move on two rails G, that are supported on the main body 10 of the machine and that run laterally to the mesh R and parallel to the longitudinal axis of the latter.
the electro-welded mesh is supported and held in position by suitable supports of the main body 10.
the reference numeral 9 indicates the plane over which the electro-welded mesh runs, while the reference U indicates the structure that contains all the previously described mechanical components that play a role in the bending of the mesh.
the whole machine can be mobile or fixed, depending on the type of mesh feeding system or on the form of the shaped reinforcing steel mesh that is to be produced. If the whole machine is mobile, it can move in the direction of the X, Y and W axes, as mentioned above.
Each selector 15 controls the composite movement of the bending arms 3, 4 and 4-1 through an articulated kinematic mechanism that includes a connecting rod 16, pivoted at one end to the crank 12 by means of a pin 18.
the connecting rod 16 is pivotally connected at its other end to a counteracting arm 17 through a pin 19.
the counteracting arm 17 is also hinged to the main body of the bending unit U through a pin 21 .
the counteracting arm 17, bearing on the connecting rod 16 through the pin 19 counteracts the force that is generated between the bending pin or pawl 2, 2-1 , 2-2 and the corresponding arm 3, 4, 4-1 and forces the same arm to perform the composite movement so as to follow the suitable bending path.
the path described by the bending arm forces the wire 1 to bend around the cylindrical surface of the pawl itself.
the bending angle may vary from 0 ° to 180 °.
FIG 4B is also shown, in cross section, a fixed striker plate 20 that supports the running deck 9 of the electro-welded mesh to be bent.
the striker plate 20 counters the thrust that is applied on the wire 1 when it is being bent, through the movement of the bending arm.
a further characterizing element of the invention is the device for automatically positioning on a support 32 (fig. 6B), according to the program of the control unit, the kinematic bending mechanisms so as to rapidly, economically and safely respond to the need of reconfiguring the bending units as required with the different pitches between the wires 1 that form the sections of electro-welded mesh.
the technical solution described hereinbelow enables the reconfiguration of the machine in the time interval from when the bent mesh panel is discharged to when a new one is loaded without requiring the intervention of the operator.
Said mechanisms for positioning the bending pawls are fastened to the support 32 by means of a locking bracket 33 joined to the lever holding bar 28 by means of a suitable number of bolts.
a locking bracket 33 joined to the lever holding bar 28 by means of a suitable number of bolts.
an end of the pawl locking lever 25 characterized in having a "C" shaped cross section.
an actuator the piston of which is connected by means of a pin to the pawl locking lever 25.
the free end of the pawl locking lever 25 ends at the pawl release toe 24.
the detail shown in portion AX of figure 8B illustrates the structure formed in the base of the pawls 2-1 and 2-2 in which is present a recess necessary to house the pawl locking pin 22.
the pawl locking pins 22 are held in the idle position by the combined action of the thrust from the spring 23 and the opposing action of the stops for the pin 29; in this position the pawl locking pins 22 engage the positioning grooves 30 formed in the mobile supports 6 and 6.1 .
the bending unit shifts laterally as far as the margins of the working area so that the pawl that is to be displaced reaches the position of the pawl release mechanism.
the actuator 27 actuates the arm 25 so that, by rotating in the direction of the arrow shown in figure 8B, the pawl release toe 24 applies a pressure on the head of the pawl locking pin 22 sufficient to force it backward and move it clear of the positioning groove 30.
the bending unit starts to move in a direction such as to bring the bending pawl to the new position.
the actuator 27 is manoeuvred by the control unit so that it rotates the pawl locking lever 25 by the angle necessary to relieve the pressure on the pawl locking pin 22 but, at the same time, sufficient to maintain the top part of the bending pin 2-1 or 2-2 between the two arms of the "C" described by the cross section of the pawl locking level 25. In this manner, the bending pin 2-1 or 2-2, remaining still, reaches the new position thanks to the movement of the bending unit.
the bending unit resumes the waiting position for the next section of mesh to be bent.
the machine according to the invention makes it possible to drastically reduce the bending times of the electro-welded meshes, as it is possible to operate the bending units in the most selective manner, that is, individually or in groups.

Landscapes

Engineering & Computer Science (AREA)
Architecture (AREA)
Mechanical Engineering (AREA)
Civil Engineering (AREA)
Structural Engineering (AREA)
Wire Processing (AREA)
Bending Of Plates, Rods, And Pipes (AREA)
Closing Of Containers (AREA)
Shaping Of Tube Ends By Bending Or Straightening (AREA)

EP13801809.8A 2012-11-19 2013-11-04 Automatische maschine zum biegen von elektrogeschweissten geflechten Active EP2919928B1 (de)

Priority Applications (4)

Application Number	Priority Date	Filing Date	Title
HRP20161592TT HRP20161592T1 (hr)	2012-11-19	2013-11-04	Uređaj za automatsko savijanje elektro-zavarenih mreža
PL13801809T PL2919928T3 (pl)	2012-11-19	2013-11-04	Maszyna automatyczna do gięcia spawanych elektrycznie siatek
SI201330431A SI2919928T1 (sl)	2012-11-19	2013-11-04	Avtomatski stroj za krivljenje elektrovarjenih mrež
RS20161072A RS55407B1 (sr)	2012-11-19	2013-11-04	Automatska mašina za savijanje elektro-zavarenih mreža

Applications Claiming Priority (2)

Application Number	Priority Date	Filing Date	Title
IT000069A ITPN20120069A1 (it)	2012-11-19	2012-11-19	Macchina automatica piegatrice di reti elettrosaldate
PCT/IB2013/059881 WO2014076605A1 (en)	2012-11-19	2013-11-04	Automatic machine to bend electro-welded meshes

Publications (2)

Publication Number	Publication Date
EP2919928A1 true EP2919928A1 (de)	2015-09-23
EP2919928B1 EP2919928B1 (de)	2016-09-21

Family

ID=47633292

Family Applications (1)

Application Number	Title	Priority Date	Filing Date
EP13801809.8A Active EP2919928B1 (de)	2012-11-19	2013-11-04	Automatische maschine zum biegen von elektrogeschweissten geflechten

Country Status (15)

Country	Link
EP (1)	EP2919928B1 (de)
BR (1)	BR112015009594A2 (de)
DK (1)	DK2919928T3 (de)
ES (1)	ES2607810T3 (de)
HR (1)	HRP20161592T1 (de)
IN (1)	IN2015KN00597A (de)
IT (1)	ITPN20120069A1 (de)
LT (1)	LT2919928T (de)
PL (1)	PL2919928T3 (de)
PT (1)	PT2919928T (de)
RS (1)	RS55407B1 (de)
RU (1)	RU2620316C2 (de)
SI (1)	SI2919928T1 (de)
SM (1)	SMT201600420B (de)
WO (1)	WO2014076605A1 (de)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
CN110091175B (zh) *	2019-06-12	2021-01-22	江苏科技大学	一种方桩端板折弯焊接一体成型装置
CN110576092B (zh) *	2019-10-21	2021-03-05	北京建筑机械化研究院有限公司	一种钢筋网片弯折设备
CN113441890B (zh) *	2020-03-24	2023-09-12	广东博智林机器人有限公司	一种双层网焊接生产线
CN113618268B (zh) *	2021-10-13	2021-12-07	启东辉煌钢结构工程有限公司	一种钢结构全自动焊接设备
CN114505384B (zh) *	2022-03-17	2023-05-09	宁波交通工程建设集团有限公司	一种钢筋骨架双向定位弯折机
CN119772064B (zh) *	2025-01-20	2025-11-18	河北骄阳焊工有限公司	波浪丝网片焊接线用波浪丝折弯送丝机构及用该装置折弯送丝的方法

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DE2237895C3 (de) *	1972-08-02	1974-11-28	Rudolf 7031 Holzgerlingen Bock	Einrichtung zum Abwinkein von Baustahlmatten
JPS5135776A (ja) *	1974-09-20	1976-03-26	Nippon Steel Corp	Yosetsunyorukanaaminoseizohoho
SU574253A1 (ru) *	1976-02-19	1977-09-30	Трест По Производству Строительных Материалов И Строительных Изделий "Промстройматериалы"	Станок дл гибки арматурных сеток
SU664715A1 (ru) *	1977-04-26	1979-05-30	Опытное производственно-техническое предприятие "Энерготехпром"	Устройство дл гибки арматурной сетки
FR2721640B1 (fr) *	1994-06-28	1996-09-13	Bokobza Galdys	Procédé de fabrication d'armatures pour béton armé.
ATE450327T1 (de) *	2007-04-02	2009-12-15	Ruwa Drahtschweisswerk Ag	Verfahren und vorrichtung zur herstellung eines bewehrungskorbs aus einer baustahlmatte

2012
- 2012-11-19 IT IT000069A patent/ITPN20120069A1/it unknown
2013
- 2013-11-04 WO PCT/IB2013/059881 patent/WO2014076605A1/en not_active Ceased
- 2013-11-04 HR HRP20161592TT patent/HRP20161592T1/hr unknown
- 2013-11-04 RS RS20161072A patent/RS55407B1/sr unknown
- 2013-11-04 PT PT138018098T patent/PT2919928T/pt unknown
- 2013-11-04 SI SI201330431A patent/SI2919928T1/sl unknown
- 2013-11-04 EP EP13801809.8A patent/EP2919928B1/de active Active
- 2013-11-04 LT LTEP13801809.8T patent/LT2919928T/lt unknown
- 2013-11-04 PL PL13801809T patent/PL2919928T3/pl unknown
- 2013-11-04 RU RU2015123291A patent/RU2620316C2/ru not_active IP Right Cessation
- 2013-11-04 ES ES13801809.8T patent/ES2607810T3/es active Active
- 2013-11-04 BR BR112015009594A patent/BR112015009594A2/pt not_active Application Discontinuation
- 2013-11-04 DK DK13801809.8T patent/DK2919928T3/da active
2015
- 2015-03-09 IN IN597KON2015 patent/IN2015KN00597A/en unknown
2016
- 2016-11-18 SM SM201600420T patent/SMT201600420B/it unknown

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* Cited by examiner, † Cited by third party
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See references of WO2014076605A1 *

Also Published As

Publication number	Publication date
RS55407B1 (sr)	2017-04-28
HRP20161592T1 (hr)	2017-01-13
SMT201600420B (it)	2017-01-10
ITPN20120069A1 (it)	2014-05-20
RU2015123291A (ru)	2017-01-10
RU2620316C2 (ru)	2017-05-24
DK2919928T3 (da)	2017-01-02
PT2919928T (pt)	2016-12-02
BR112015009594A2 (pt)	2017-07-04
SI2919928T1 (sl)	2017-01-31
WO2014076605A1 (en)	2014-05-22
ES2607810T3 (es)	2017-04-04
EP2919928B1 (de)	2016-09-21
PL2919928T3 (pl)	2017-05-31
IN2015KN00597A (de)	2015-07-17
LT2919928T (lt)	2017-02-27

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