EP0532018A1 - Machine pour la fabrication des armatures métalliques cylindriques ou coniques en forme de spirale - Google Patents

Machine pour la fabrication des armatures métalliques cylindriques ou coniques en forme de spirale Download PDF

Info

Publication number: EP0532018A1
Authority: EP; European Patent Office
Prior art keywords: spiral; machine; bending; realization; shaped metal
Prior art date: 1991-09-11
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

EP92115554A

Other languages

German (de)

English (en)

Other versions

EP0532018B1 (fr

Inventor

Elberino Faggiotto

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.)

HIGHSTONE VENTURE CAPITAL N.V.

Original Assignee

Highstone Venture Capital NV

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.)

1991-09-11

Filing date

1992-09-11

Publication date

1993-03-17

1991-09-11 Priority claimed from ITPD910155A external-priority patent/IT1257979B/it

1992-06-26 Priority claimed from IT92PD000115A external-priority patent/IT1278427B1/it

1992-09-11 Application filed by Highstone Venture Capital NV filed Critical Highstone Venture Capital NV

1993-03-17 Publication of EP0532018A1 publication Critical patent/EP0532018A1/fr

1997-12-03 Application granted granted Critical

1997-12-03 Publication of EP0532018B1 publication Critical patent/EP0532018B1/fr

2012-09-11 Anticipated expiration legal-status Critical

Status Expired - Lifetime 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
- 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
- B21F27/121—Making special types or portions of network by methods or means specially adapted therefor of tubular form, e.g. as reinforcements for pipes or pillars
- B21F27/122—Making special types or portions of network by methods or means specially adapted therefor of tubular form, e.g. as reinforcements for pipes or pillars by attaching a continuous stirrup to longitudinal wires
- B21F27/124—Making special types or portions of network by methods or means specially adapted therefor of tubular form, e.g. as reinforcements for pipes or pillars by attaching a continuous stirrup to longitudinal wires applied by rotation

Definitions

the present invention patent consists of a machine that realizes metal spirals of variable dimensions and pitch, where the coils are formed around the longitudinal bars; this machine, therefore, allows a considerable saving of time and of energies for the operators.
the machine is constituted in its main parts by a series of bending rollers, which generate the coils, of a roller positioned near the exist of the iron piece from the bending rollers, which has an inclined axis with relation to the bending plane and to the horizontal direction and brings the already bent iron both outwards and toward a second upper roller; this second upper roller is idle and is perpendicular to the bending plane.
the position of the inclined roller and of the idle upper roller can vary according to the needs.
the idle upper roller can translate vertically, so that it is possible to vary the diameter of the spiral, can translate frontally to adapt to the spiral pitch and can translate laterally for possible settings; the adjustement of this cylinder can be manual or electromechanical.
Two long parallel cyclinders are positioned in front of the bending machine, slightly downward, perpendicularly to the iron bending plane. Between these cylinders there are mobile forks that support the reinforcement longitudinal bars.
the first operation to begin the process is the positioning on the forks of the reinforcement longitudinal bars, that afterwards will be fixed longitudinally along the spiral; these forks are positioned between the two front parallel cylinders, that are long enough to support the spiral in its complete development.
the forks are raised higher than the parallel cylinders, so that the forming spiral doesn't touch the bars during the rotation.
the two parallel cylinders rotate in the same direction, thus making the feed of the spiral itself easier.
a shear is positioned in correspondence of the exit of the iron from the second bending machine.
the bending process is stopped.
the shear is brought near the iron, in one of its points near the exit from the second bending machine and then the shear is operated, cutting the iron and separating the whole spiral just produced from the iron hank that has still to be bent.
the rod supporting forks are lowered, so that it is possible to go on with the fixing of the longitudinal bars to the spiral.
positioning forks On the machine, besides the forks that keep all the longitudinal bars inside the spiral, there is a second series of forks, called positioning forks, the upper part of which has an upper vertical notch slightly wider than the diameter of a single bar.
the positioning forks are raised; thanks to their shape, these positioning forks raise only one longitudinal bar and from inside bring it near the upper part of the spiral.
the bar can be welded to the spiral by the automatic welding machines.
Each one of these automatic welding machines is mounted on a trolley running on one or more special rails, that are parallel to the cylinders that support the spiral.
the torch of the welding machine is mounted on the trolley by means of some mobile arms that bring the torch near the welding point, take the torch away from the welding point and rotate it around the welding point. Also some feelers are mounted on the trolley: they locate the point on which the welding has to be made, that is, the contact point between the longitudinal bar and the spiral.
the welding machine For each longitudinal bar raised by the positioning forks, the welding machine is brought near the spiral and the feelers are positioned on the longitudinal bar. After that, the trolley advances and the feelers travel on the longitudinal bar.
feelers When the feelers locate the contact point between the longitudinal bar and a tract of the spiral, they stop the trolley and operate the successive approach of the welding machine torch, that carries out the welding at the corresponding point.
the positioning forks are lowered and the whole spiral rotates on the cylinders for the required angle.
the whole cycle is repeated, that is, the positioning forks are raised again to bring another longitudinal bar in contact with the spiral and the trolley with the welding machine slides again to weld the new bar to the spiral.
Both the feelers and the torch of the welding machine are mounted on a adjustable structure positioned on the trolley, so that they can adapt to the different sizes of the reinforcements to be realized.
the operation of the shear, of the positioning forks, of the trolleys, of the feelers and of the welding machines is controlled by a specific electric/electronic circuit.
the overturning scythe-shaped parts rotate on a plane that is perpendicular to the longitudinal bars; hooks equipped with a catch are hinged on their free end, in order to avoid the uncontrolled sliding of the reinforcement along the hooks themselves.
These hooks are hinged to the scythe-shaped parts, so that their rotation with respect to the scythe-shaped parts themselves can be limited; a catch near the pivot of each hook doesn't allow them to rotate in the direction opposite to the reinforcement lifting direction, past the approximately aligned position of the hook with the scythe-shaped part.
the upper mobile cylinder is raised in such a way as not to interfere with the working.
the inclined roller is coupled with a new series of bending rollers with a variable bending direction, depending on the spiral pitch. This way the spiral, after coming out of the bending machine, meets another series of rolls for the side bending.
Figure 1 shows the machine provided with equipment for bending irons (B), provided with a roller (C) that is inclined with respect to the coil (X) plane and inclined downward, that causes the lateral bending of the iron and directs the coil (X) itself toward the idle upper roller (D), that realizes the spiral diameter.
the mobile idle upper roller (D) can be moved manually or electromechanically, it can also move upward or downward to vary the diameter and parallely to the bending plane to conform with the coil (X) pitch.
the two front cylinders (E) support the spiral (X) in its formation and they both rotate in the same direction to help the feed of the forming spiral (X).
Figure 2 shows an axonometric view of the machine, in which it is possible to notice the parallel cylinders (E), that support the spiral (X) for its whole length; at one end of the cylinders (E) there is the bending equipment (B).
Figure 3 shows the bending unit of the machine, in case a very long-pitched spiral must be realized; it is possible to notice the bending rollers (B), the inclined roller (C) coupled with a second series of rollers (M), where the iron (X) is bent laterally.
Figures 4a, 4b, 4c, 4d show in detail the movement of one overturning scythe-shaped part (N), equipped with hook (G), that rests on and then grasps one bar (L) of the metal structure (R), resting on the parallel cylinders (E) and that rotating around the pivot (Q) raises and extracts the metal structure (R) from the machine.
Each hook (G) is provided with a catch that hinders the sliding of the structure along the hook (G) itself; besides, a tooth near the pivot (P) of each hook (G) doesn't allow the hook (G) itself to rotate in the direction opposite to that of the structure (R) lifting, past the approximately aligned position of the hook (G) with the scythe-shaped metal part (N).
the upper part of the positioning forks (Fp) is rhomboid-shaped, with an upper vertical notch slightly wider than a longitudinal bar (B).
these positioning forks (Fp) are raised, due to their form they take a single bar (B) from the group of longitudinal bars (B) to be welded and they raise it until the upper point inside the spiral (S), and then it has to be welded.
a shear for example, an electropneumatic shear (A) is placed at the exit of the iron from the bending cylinders (B); it is controlled by an electromechanism connected with the machine, that provides for cutting the iron of the spiral (S), thus separating the spiral itself (S).
a shear for example, an electropneumatic shear (A)
A is placed at the exit of the iron from the bending cylinders (B); it is controlled by an electromechanism connected with the machine, that provides for cutting the iron of the spiral (S), thus separating the spiral itself (S).
the feelers (T) and the torch (Z) of the welding machine are mounted on this trolley (l); on the edge of the trolley (I) there is also the welding machine (U).
the feelers (T) that can be of any kind, preferably consist of a stem equipped with an electric contact that passes near the longitudinal bar (L) to be welded.
the trolley provides for positioning the feeler (T) near this longitudinal bar (B) and for dragging it for the whole length of the bar itself.
the torch (Z) is retracted and/or rotated and the trolley (I) is set into motion again until when the feeler (T) doesn't find another contact point between the bar (L) and the spiral (S).

Landscapes

Engineering & Computer Science (AREA)
Mechanical Engineering (AREA)
Wire Processing (AREA)
Iron Core Of Rotating Electric Machines (AREA)
Reinforcement Elements For Buildings (AREA)
Piles And Underground Anchors (AREA)
Diaphragms For Electromechanical Transducers (AREA)
Springs (AREA)

EP92115554A 1991-09-11 1992-09-11 Machine et procédé pour la fabrication des armatures métalliques cylindriques ou coniques en forme de spirale Expired - Lifetime EP0532018B1 (fr)

Applications Claiming Priority (4)

Application Number	Priority Date	Filing Date	Title
ITPD910155A IT1257979B (it)	1991-09-11	1991-09-11	Macchina per la realizzazione di armature in ferro a spirale cilindriche e/o coniche per pali o pilastri di fondazione
ITPD910155		1991-09-11
ITPD920115		1992-06-26
IT92PD000115A IT1278427B1 (it)	1992-06-26	1992-06-26	Macchina per la realizzazione di armature in ferro a spirale con posizionamento e saldature automatiche

Publications (2)

Publication Number	Publication Date
EP0532018A1 true EP0532018A1 (fr)	1993-03-17
EP0532018B1 EP0532018B1 (fr)	1997-12-03

Family

ID=26331777

Family Applications (1)

Application Number	Title	Priority Date	Filing Date
EP92115554A Expired - Lifetime EP0532018B1 (fr)	1991-09-11	1992-09-11	Machine et procédé pour la fabrication des armatures métalliques cylindriques ou coniques en forme de spirale

Country Status (6)

Country	Link
EP (1)	EP0532018B1 (fr)
AT (1)	ATE160712T1 (fr)
DE (1)	DE69223360T2 (fr)
DK (1)	DK0532018T3 (fr)
ES (1)	ES2109968T3 (fr)
GR (1)	GR3026234T3 (fr)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
WO2000066292A1 (fr) *	1999-04-29	2000-11-09	Rom Group Limited	Machine a enroulement en helice
EP1243358A1 (fr) *	2001-03-19	2002-09-25	M.E.P. Macchine Elettroniche Piegatrici S.p.A.	Dispositif et procédé pour compléter des cages de renforcement
WO2006119595A1 (fr)	2005-05-10	2006-11-16	Maria Helena Vieira Maccaferri	Systeme en ligne de decoupe et de cintrage de barres, tiges et rouleaux en acier pour la fabrication d’etriers et de fermes longitudinales, et assemblage d’armatures en acier pour poutres, piliers, semelles, blocs, pieux, tambours et autres elements structuraux en beton arme
CN107584053A (zh) *	2017-09-06	2018-01-16	中国建筑第八工程局有限公司	半自动钢筋笼箍筋安装装置
CN112958724A (zh) *	2021-03-03	2021-06-15	中国十七冶集团有限公司	一种非标箍筋简易弯制方法

Citations (5)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
US2903553A (en) *	1958-02-03	1959-09-08	American Pipe & Constr Co	Continuous cage-making machine
CH481339A (de) *	1968-08-16	1969-11-15	Halmstads Jarnverks Ab	Bewehrungseinheit für Betonrohre, Verfahren zu ihrer Herstellung und Vorrichtung zur Durchführung dieses Verfahrens
FR2123116A1 (fr) *	1971-01-08	1972-09-08	Commissariat Energie Atomique	Machine cintreuse-spiraleuse pour la fabrication de serpentins en tube ou fil metallique
US3726461A (en) *	1969-01-29	1973-04-10	Nippon Concrete Ind Co Ltd	Apparatus for forming pc concrete pipe reinforcing
US3875977A (en) *	1973-03-23	1975-04-08	Universal Oil Prod Co	Method for making cylindrical screens

1992
- 1992-09-11 DE DE69223360T patent/DE69223360T2/de not_active Expired - Lifetime
- 1992-09-11 EP EP92115554A patent/EP0532018B1/fr not_active Expired - Lifetime
- 1992-09-11 ES ES92115554T patent/ES2109968T3/es not_active Expired - Lifetime
- 1992-09-11 DK DK92115554T patent/DK0532018T3/da active
- 1992-09-11 AT AT92115554T patent/ATE160712T1/de active
1998
- 1998-02-25 GR GR980400414T patent/GR3026234T3/el unknown

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
US2903553A (en) *	1958-02-03	1959-09-08	American Pipe & Constr Co	Continuous cage-making machine
CH481339A (de) *	1968-08-16	1969-11-15	Halmstads Jarnverks Ab	Bewehrungseinheit für Betonrohre, Verfahren zu ihrer Herstellung und Vorrichtung zur Durchführung dieses Verfahrens
US3726461A (en) *	1969-01-29	1973-04-10	Nippon Concrete Ind Co Ltd	Apparatus for forming pc concrete pipe reinforcing
FR2123116A1 (fr) *	1971-01-08	1972-09-08	Commissariat Energie Atomique	Machine cintreuse-spiraleuse pour la fabrication de serpentins en tube ou fil metallique
US3875977A (en) *	1973-03-23	1975-04-08	Universal Oil Prod Co	Method for making cylindrical screens

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
WO2000066292A1 (fr) *	1999-04-29	2000-11-09	Rom Group Limited	Machine a enroulement en helice
EP1243358A1 (fr) *	2001-03-19	2002-09-25	M.E.P. Macchine Elettroniche Piegatrici S.p.A.	Dispositif et procédé pour compléter des cages de renforcement
WO2006119595A1 (fr)	2005-05-10	2006-11-16	Maria Helena Vieira Maccaferri	Systeme en ligne de decoupe et de cintrage de barres, tiges et rouleaux en acier pour la fabrication d’etriers et de fermes longitudinales, et assemblage d’armatures en acier pour poutres, piliers, semelles, blocs, pieux, tambours et autres elements structuraux en beton arme
CN107584053A (zh) *	2017-09-06	2018-01-16	中国建筑第八工程局有限公司	半自动钢筋笼箍筋安装装置
CN107584053B (zh) *	2017-09-06	2023-05-02	中国建筑第八工程局有限公司	半自动钢筋笼箍筋安装装置
CN112958724A (zh) *	2021-03-03	2021-06-15	中国十七冶集团有限公司	一种非标箍筋简易弯制方法
CN112958724B (zh) *	2021-03-03	2022-07-29	中国十七冶集团有限公司	一种非标箍筋简易弯制方法

Also Published As

Publication number	Publication date
EP0532018B1 (fr)	1997-12-03
GR3026234T3 (en)	1998-05-29
DE69223360T2 (de)	1998-03-26
ES2109968T3 (es)	1998-02-01
DK0532018T3 (da)	1998-08-10
DE69223360D1 (de)	1998-01-15
ATE160712T1 (de)	1997-12-15

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