EP0715907B1 - Method of bending steel bars, in particular for bending of concrete reinforcement bars to form reinforcement stirrups - Google Patents
Method of bending steel bars, in particular for bending of concrete reinforcement bars to form reinforcement stirrups Download PDFInfo
- Publication number
- EP0715907B1 EP0715907B1 EP95117627A EP95117627A EP0715907B1 EP 0715907 B1 EP0715907 B1 EP 0715907B1 EP 95117627 A EP95117627 A EP 95117627A EP 95117627 A EP95117627 A EP 95117627A EP 0715907 B1 EP0715907 B1 EP 0715907B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- bending
- rod end
- machine
- rod
- clamping device
- 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.)
- Expired - Lifetime
Links
Images
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
- B21D7/00—Bending rods, profiles, or tubes
- B21D7/02—Bending rods, profiles, or tubes over a stationary forming member; by use of a swinging forming member or abutment
- B21D7/022—Bending rods, profiles, or tubes over a stationary forming member; by use of a swinging forming member or abutment over a stationary forming member only
-
- 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
Definitions
- the invention relates to a method for bending steel bars, in particular for bending reinforcing steel bars to reinforcement stirrups, in which the first bar end of a steel bar to be bent is inserted into a bending station which is fixed to the machine and the second bar end is introduced into a bending machine which can be moved in the longitudinal direction of the bar.
- a method for bending steel bars in particular for bending reinforcing steel bars to reinforcement stirrups, in which the first bar end of a steel bar to be bent is inserted into a bending station which is fixed to the machine and the second bar end is introduced into a bending machine which can be moved in the longitudinal direction of the bar.
- Such a method is known from DE-A-39 41 291 (& EP-A-0 432 468).
- DE-A-39 41 291 discloses a bending system with a bending station arranged in a machine-fixed manner and a bending machine which can be moved in the longitudinal direction of the bar.
- the mostly different lengths of steel bars are fed to a support frame arranged on the long side of the bending system, which can also be designed as a roller table, and aligned with a stop of the support frame with its first bar end assigned to the bending station. From there they are transferred to the bending system and positioned with their rod ends on the one hand in the machine-fixed bending station and on the other hand in the movable bending machine.
- One after the other all the arches are formed on one end of the rod, then all the arches on the other end of the rod. If several arches have to be carried out on both rod ends, the process is very time-consuming.
- An acceleration of the machining process can be achieved with the bending system known from DE-A-33 01 061.
- the bending system has two movable bending machines and a central clamping device in the longitudinal direction between the bending machines. A rod to be bent is gripped in the center of the clamping device. Then, on both rod ends at the same time the bends are formed using the movable bending machines.
- the known method is not free from disadvantages if steel rods of different lengths have to be processed alternately.
- a complex positioning control of the feed device is required in order to align the steel rods of different lengths in such a way that they are gripped by the central clamping device in the center after being taken over into the bending system.
- the path of the bending machines is several meters in both directions, and its length, which depends on the steel bars to be processed, is difficult for the machine operator to estimate. In practice, it cannot be avoided that the machine operator is standing on the road. This results in an increased risk of accidents.
- the invention has for its object to provide a method of the type described above, with the steel rods of different lengths can be bent several times at their ends with high processing speed.
- the invention teaches that the steel rods to be bent are fed on a support frame arranged on the long side of the bending system and are aligned with their first rod end assigned to the bending station on a stop of the support frame.
- Bending system here means the arrangement of the bending station and bending machine including the travel path of the bending machine and the necessary drive devices.
- the bending machine and the bending station can be carried out in a manner known per se. They usually have a bending table and a bending plate which can be driven about a vertical axis and has bending tools arranged thereon, for example in the form of a bending finger and a central bending counter-tool.
- the tools described, or some of them, are interchangeable when it comes to making turns on steel bars different bending radius.
- both the bending machine and the bending station are designed with their own clamping device, preferably with clamping jaws that can be moved relative to one another.
- the steel bars are generally reworked individually.
- the bending system shown in the figure is used for bending reinforcing steel bars to reinforcement stirrups, the ends of which are mostly curved several times.
- the system has a bending station 1 arranged in a machine-fixed manner and a bending machine 2 which can be moved in both directions in the longitudinal direction of the bar.
- the bending station 1 and the movable bending machine 2 each have a bending plate 3 which can be driven about a vertical axis and has bending tools arranged thereon in the form of a bending finger 4 and a central bending counter-tool 5.
- the bending station 1 and the bending machine 2 each have a clamping device 6 ', 6 equipped.
- the two clamping devices 6 ', 6 are in the work area between the Bending plates 3 of the bending machine 2 on the one hand and the bending station 1 on the other hand.
- a support frame 7 is provided, in the exemplary embodiment as a roller conveyor, which has a stop 8 for steel rods at its end adjacent to the bending station 1.
- Steel rods 9 of different lengths are fed to the bending system on the support frame 7 and aligned with the stop 8 of the support frame 7 with a rod end assigned to the bending station 1, hereinafter referred to as the first rod end 10. From there, the steel rods 9 are fed individually to the bending system, the first rod end 10 of the steel rod to be bent being introduced into the bending station 1 arranged in a machine-fixed manner and the second rod end 11 being introduced into the bending machine 2 which can be moved in the longitudinal direction of the rod.
- the second rod end 11 is clamped in the clamping device 6 of the movable bending machine 2 (FIG. 2a).
- the bending machine 2 is then moved for the purpose of positioning the first rod end 10, while at the same time the second rod end 11 is bent in the bending machine 2 (FIG. 2b).
- the driving process and the bending process take place synchronously.
- the clamping device 6 of the bending machine 2 is released and the first rod end 10 is clamped in the clamping device 6 ′ of the bending station 1.
- the bending machine 2 now moves into a new processing position, while at the same time the first rod end 10 is bent in the bending station 1 (FIG.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Wire Processing (AREA)
- Bending Of Plates, Rods, And Pipes (AREA)
Description
Die Erfindung betrifft ein Verfahren zum Biegen von Stahlstäben, insbesondere zum Biegen von Betonstahlstäben zu Bewehrungsbügeln, bei dem das erste Stabende eines zu biegenden Stahlstabes in eine maschinenfest angeordnete Biegestation und das zweite Stabende in eine in Stablängsrichtung verfahrbare Biegemaschine eingeführt werden. Ein solches Verfahren ist aus DE-A-39 41 291 (& EP-A-0 432 468) bekannt.The invention relates to a method for bending steel bars, in particular for bending reinforcing steel bars to reinforcement stirrups, in which the first bar end of a steel bar to be bent is inserted into a bending station which is fixed to the machine and the second bar end is introduced into a bending machine which can be moved in the longitudinal direction of the bar. Such a method is known from DE-A-39 41 291 (& EP-A-0 432 468).
Aus DE-A-39 41 291 ist eine Biegeanlage mit einer maschinenfest angeordneten Biegestation sowie einer in Stablängsrichtung verfahrbaren Biegemaschine bekannt. Die zumeist unterschiedlich langen Stahlstäbe werden auf einem an der Längsseite der Biegeanlage angeordneten Auflagergerüst, welches auch als Rollgang ausgeführt sein kann, zugeführt und mit ihrem der Biegestation zugeordneten ersten Stabende an einem Anschlag des Auflagergerüstes ausgerichtet. Von dort werden sie an die Biegeanlage übergeben und mit ihren Stabenden einerseits in der maschinenfesten Biegestation und andererseits in der verfahrbaren Biegemaschine positioniert. Nacheinander werden zunächst sämtliche Bögen an dem einen Stabende, anschließend sämtliche Bögen an dem anderen Stabende angeformt. Müssen an beiden Stabenden mehrere Bögen ausgeführt werden, so ist das Verfahren sehr zeitaufwendig.DE-A-39 41 291 discloses a bending system with a bending station arranged in a machine-fixed manner and a bending machine which can be moved in the longitudinal direction of the bar. The mostly different lengths of steel bars are fed to a support frame arranged on the long side of the bending system, which can also be designed as a roller table, and aligned with a stop of the support frame with its first bar end assigned to the bending station. From there they are transferred to the bending system and positioned with their rod ends on the one hand in the machine-fixed bending station and on the other hand in the movable bending machine. One after the other, all the arches are formed on one end of the rod, then all the arches on the other end of the rod. If several arches have to be carried out on both rod ends, the process is very time-consuming.
Eine Beschleunigung des Bearbeitungsverfahrens ist mit der aus DE-A-33 01 061 bekannten Biegeanlage erreichbar. Die Biegeanlage weist zwei verfahrbare Biegemaschinen sowie eine zentrale Klemmeinrichtung in Stablängsrichtung zwischen den Biegemaschinen auf. Ein zu biegender Stab wird in der Klemmeinrichtung mittig gefaßt. Anschließend werden an beiden Stabenden gleichzeitig mit Hilfe der verfahrbaren Biegemaschinen die Bögen angeformt. Das bekannte Verfahren ist nicht frei von Nachteilen, wenn unterschiedlich lange Stahlstäbe im Wechsel bearbeitet werden müssen. So ist eine aufwendige Positionierungssteuerung der Zuführeinrichtung erforderlich, um die unterschiedlich langen Stahlstäbe so auszurichten, daß sie nach der Übernahme in die Biegeanlage von der zentralen Klemmeinrichtung jeweils mittig erfaßt werden. Der Fahrweg der Biegemaschinen beträgt in beiden Richtungen mehrere Meter, und seine Länge, die von den zu bearbeitenden Stahlstäben abhängt, ist für den Maschinenführer nur schwer abschätzbar. Es läßt sich in der Praxis nicht vermeiden, daß der Maschinenführer auf dem Fahrweg steht. Daraus resultiert eine erhöhte Unfallgefahr.An acceleration of the machining process can be achieved with the bending system known from DE-A-33 01 061. The bending system has two movable bending machines and a central clamping device in the longitudinal direction between the bending machines. A rod to be bent is gripped in the center of the clamping device. Then, on both rod ends at the same time the bends are formed using the movable bending machines. The known method is not free from disadvantages if steel rods of different lengths have to be processed alternately. A complex positioning control of the feed device is required in order to align the steel rods of different lengths in such a way that they are gripped by the central clamping device in the center after being taken over into the bending system. The path of the bending machines is several meters in both directions, and its length, which depends on the steel bars to be processed, is difficult for the machine operator to estimate. In practice, it cannot be avoided that the machine operator is standing on the road. This results in an increased risk of accidents.
Der Erfindung liegt die Aufgabe zugrunde, ein Verfahren der eingangs beschriebenen Art anzugeben, mit dem unterschiedlich lange Stahlstäbe mit hoher Bearbeitungsgeschwindigkeit an ihren Enden mehrfach gebogen werden können.The invention has for its object to provide a method of the type described above, with the steel rods of different lengths can be bent several times at their ends with high processing speed.
Gegenstand der Erfindung und Lösung dieser Aufgabe ist ein Verfahren zum Biegen von Stahlstäben, insbesondere zum Biegen von Betonstahlstäben zu Bewehrungsbügeln, bei dem das erste Stabende eines zu biegenden Stahlstabes in eine maschinenfest angeordnete Biegestation und das zweite Stabende in eine in Stablängsrichtung verfahrbare Biegemaschine eingeführt werden, wobei in der nachfolgend angegebenen zeitlichen Abfolge
- 1) das zweite Stabende in einer Klemmvorrichtung der verfahrbaren Biegemaschine eingespannt wird,
- 2) die Biegemaschine zum Zwecke der Positionierung des ersten Stabendes verfahren wird, während gleichzeitig das zweite Stabende in der Biegemaschine gebogen wird,
- 3) die Klemmvorrichtung der Biegemaschine gelöst und das erste Stabende in einer Klemmvorrichtung der Biegestation eingespannt wird,
- 4) die Biegemaschine in eine neue Bearbeitungsposition verfahren wird, während gleizeitig das erste Stabende in der Biegestation gebogen wird,
- 5) die Klemmvorrichtung der Biegestation gelöst wird und die Verfahrensschritte 1) bis 4) wiederholt werden, bis der Stahlstab die gewünschte Form besitzt.
- 1) the second rod end is clamped in a clamping device of the movable bending machine,
- 2) the bending machine is moved for the purpose of positioning the first rod end while at the same time the second rod end is being bent in the bending machine,
- 3) the clamping device of the bending machine is released and the first rod end is clamped in a clamping device of the bending station,
- 4) the bending machine is moved into a new processing position while the first rod end is being bent in the bending station,
- 5) the clamping device of the bending station is released and process steps 1) to 4) are repeated until the steel rod has the desired shape.
In weiterer Ausgestaltung lehrt die Erfindung, daß die zu biegenden Stahlstäbe auf einem an der Längsseite der Biegeanlage angeordneten Auflagergerüst zugeführt und mit ihrem der Biegestation zugeordneten ersten Stabende an einem Anschlag des Auflagergerüstes ausgerichtet werden. Biegeanlage meint hier die Anordnung aus Biegestation und Biegemaschine einschließlich des Fahrweges der Biegemaschine sowie der notwendigen Antriebseinrichtungen.In a further embodiment, the invention teaches that the steel rods to be bent are fed on a support frame arranged on the long side of the bending system and are aligned with their first rod end assigned to the bending station on a stop of the support frame. Bending system here means the arrangement of the bending station and bending machine including the travel path of the bending machine and the necessary drive devices.
Die Biegemaschine sowie die Biegestation sind in an sich bekannter Weise ausführbar. Sie weisen zumeist einen Biegetisch sowie einen um eine vertikale Achse antreibbaren Biegeteller mit darauf angeordneten Biegewerkzeugen, z.B. in Form eines Biegefingers und eines zentralen Biegegegenwerkzeuges auf. Die beschriebenen Werkzeuge oder einige davon sind austauschbar, wenn es sich darum handelt, an Stahlstäben Abbiegungen mit unterschiedlichem Biegeradius anzubringen. Sowohl die Biegemaschine als auch die Biegestation sind jedoch mit einer eigenen Klemmeinrichtung, vorzugsweise mit gegeneinander bewegbaren Klemmbacken, ausgeführt. Im allgmeinen werden die Stahlstäbe einzeln nachbearbeitet. Im Rahmen der Erfindung liegt es aber auch, die Biegemaschine sowie die Biegestation so auszubilden, daß gleichzeitig mehrere Stahlstäbe gleicher Länge biegeverformt werden können.The bending machine and the bending station can be carried out in a manner known per se. They usually have a bending table and a bending plate which can be driven about a vertical axis and has bending tools arranged thereon, for example in the form of a bending finger and a central bending counter-tool. The tools described, or some of them, are interchangeable when it comes to making turns on steel bars different bending radius. However, both the bending machine and the bending station are designed with their own clamping device, preferably with clamping jaws that can be moved relative to one another. The steel bars are generally reworked individually. However, it is also within the scope of the invention to design the bending machine and the bending station in such a way that a plurality of steel rods of the same length can be bent at the same time.
Im folgenden wird die Erfindung anhand einer lediglich ein Ausführungsbeispiel darstellenden Zeichnung erläutert. Es zeigen in schematischer Darstellung
- Fig. 1
- eine Draufsicht auf eine nach dem erfindungsgemäßen Verfahren arbeitende Biegeanlage,
- Fig. 2a - 2e
- den Verfahrensablauf anhand verschiedener Betriebsstellungen der Biegeanlage.
- Fig. 1
- 2 shows a plan view of a bending system working according to the method according to the invention
- 2a-2e
- the process sequence based on various operating positions of the bending system.
Die in der Figur dargestellte Biegeanlage dient zum Biegen von Betonstahlstäben zu Bewehrungsbügeln, deren Enden zumeist mehrfach gekrümmt sind. Die Anlage weist eine maschinenfest angeordnete Biegestation 1 sowie eine in Stablängsrichtung nach beiden Richtungen verfahrbare Biegemaschine 2 auf. Die Biegestation 1 sowie die verfahrbare Biegemaschine 2 besitzen jeweils einen um eine vertikale Achse antreibbaren Biegeteller 3 mit darauf angeordneten Biegewerkzeugen in Form eines Biegefingers 4 sowie eines zentralen Biegegegenwerkzeuges 5. Außerdem sind die Biegestation 1 sowie die Biegemaschine 2 jeweils mit einer Klemmvorrichtung 6', 6 ausgerüstet. Die beiden Klemmvorrichtungen 6', 6 sind im Arbeitsbereich zwischen den Biegetellern 3 der Biegemaschine 2 einerseits und der Biegestation 1 andererseits angeordnet. An der Längsseite der Biegeanlage ist ein Auflagergerüst 7, im Ausführungsbeispiel als Rollengang, vorgesehen, welches an seinem der Biegestation 1 benachbarten Ende einen Anschlag 8 für Stahlstäbe aufweist.The bending system shown in the figure is used for bending reinforcing steel bars to reinforcement stirrups, the ends of which are mostly curved several times. The system has a
Unterschiedlich lange Stahlstäbe 9 werden auf dem Auflagergerüst 7 der Biegeanlage zugeführt und mit einem der Biegestation 1 zugeordneten Stabende, im folgenden als erstes Stabende 10 bezeichnet, an dem Anschlag 8 des Auflagergerüstes 7 ausgerichtet. Von dort werden die Stahlstäbe 9 einzeln der Biegeanlage zugeführt, wobei das erste Stabende 10 des zu biegenden Stahlstabes in die maschinenfest angeordnete Biegestation 1 und das zweite Stabende 11 in die in Stabslängsrichtung verfahrbare Biegemaschine 2 eingeführt werden.
Zunächst wird das zweite Stabende 11 in der Klemmvorrichtung 6 der verfahrbaren Biegemaschine 2 eingspannt (Fig. 2a). Anschließend wird die Biegemaschine 2 zum Zwecke der Positionierung des ersten Stabendes 10 verfahren, während gleichzeitig das zweite Stabende 11 in der Biegemaschine 2 gebogen wird (Fig. 2b). Fahrvorgang und Biegevorgang erfolgen zeitlich synchron. Nachdem das erste Stabende 10 die gewünschte Position in der Biegestation 1 eingenommen hat und ein Bogen an das zweite Stabende 11 angeformt ist, wird die Klemmvorrichtung 6 der Biegemaschiene 2 gelöst und wird das erste Stabende 10 in der Klemmvorrichtung 6' der Biegestation 1 eingespannt. Nun fährt die Biegemaschine 2 in eine neue Bearbeitungsposition, während gleichzeitig das erste Stabende 10 in der Biegestation 1 gebogen wird (Fig. 2c). Fahrvorgang und Biegevorgang sind wiederum synchron. Nachdem an das erste Stabende 10 ebenfalls ein Bogen angeformt ist und die Biegemaschine 2 die gewünschte Bearbeitungsposition am zweiten Stabende 11 erreicht hat, wird die Klemmvorrichtung 6' der Biegestation 1 gelöst und das zweite Stabende 11 in der Klemmvorrichtung 6 der verfahrbaren Biegemaschine 2 eingespannt. Anschließend wird die Biegemaschine 2 zum Zwecke der Positionierung des ersten Stabendes 10 verfahren, während gleichzeitig an das zweite Stabende 11 ein weiterer Bogen in der Biegemaschine 2 angeformt wird (Fig. 2d). Hiernach wird die Klemmvorrichtung 6 der Biegemaschine 2 gelöst und das erste Stabende 10 in der Klemmvorrichtung 6' der Biegestation 1 eingespannt sowie mit einem Bogen versehen (Fig. 2e). Die beschriebenen Verfahrensschritte werden solange wiederholt, bis der Stahlstab 9 die gewünschte Form als Bewehrungsbügel besitzt. Der Bewehrungsbügel wird entnommen und die Biegemaschine 2 mit einem weiteren Stahlstab beschickt.First, the
Claims (2)
- A process for bending steel rods, particularly for bending concrete-reinforcing steel rods to form reinforcement clips, in which the first rod end (10) of a steel rod (9) to be bent is introduced into a bending station (1) fixedly disposed on a machine and the second rod end (11) is introduced into a bending machine (2) which can move in the longitudinal direction of the rod, wherein, in the following chronological sequence1) the second rod end (11) is clamped in a clamping device (6) of the movable bending machine (2),2) the bending machine (2) is moved for the purpose of positioning the first rod end (10), whilst the second rod end (11) is simultaneously bent in the bending machine (2),3) the clamping device (6) of the bending machine (2) is released and the first rod end (10) is clamped in a clamping device (6') of the bending station (1),4) the bending machine (2) is moved into a new operating position, whilst the first rod end (10) is simultaneously bent in the bending station (1),5) the clamping device (6') of the bending station (1) is released and process steps 1) to 4) are repeated until the steel rod (9) has the desired shape.
- A process according to claim 1, wherein the steel rods (9) to be bent are supplied on a supporting stand (7) disposed at the longitudinal side of the bending installation and their first rod ends (10) associated with the bending station (1) are aligned at a stop (8) on the supporting framework (7).
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE4443518A DE4443518A1 (en) | 1994-12-07 | 1994-12-07 | Process for bending steel bars, in particular for bending reinforcing steel bars to reinforcement bars |
DE4443518 | 1994-12-07 |
Publications (2)
Publication Number | Publication Date |
---|---|
EP0715907A1 EP0715907A1 (en) | 1996-06-12 |
EP0715907B1 true EP0715907B1 (en) | 1997-04-09 |
Family
ID=6535133
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP95117627A Expired - Lifetime EP0715907B1 (en) | 1994-12-07 | 1995-11-09 | Method of bending steel bars, in particular for bending of concrete reinforcement bars to form reinforcement stirrups |
Country Status (2)
Country | Link |
---|---|
EP (1) | EP0715907B1 (en) |
DE (2) | DE4443518A1 (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN102784854A (en) * | 2011-05-17 | 2012-11-21 | 长春旭阳富维江森汽车座椅骨架有限责任公司 | Double-end automatic steel wire bending machine |
Families Citing this family (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
ITUD970100A0 (en) * | 1997-05-29 | 1997-05-29 | ||
AT406744B (en) * | 1998-11-20 | 2000-08-25 | Filzmoser Franz | WIRE BENDING MACHINE, IN PARTICULAR FOR BENDING STEEL WIRE |
GR1004238B (en) * | 2002-04-02 | 2003-05-14 | Αντωνης Παναγιωτη Αναγνωστοπουλος | Method and machine for bending concrete beams, wires, tubes or other material of a prismatic cross section |
WO2015186112A1 (en) * | 2014-06-06 | 2015-12-10 | Giorgio Del Fabro | Bending machine and corresponding method |
EP2965829B1 (en) * | 2014-07-10 | 2017-09-13 | PEDAX GmbH | Method for bending bendable elongate metal profiles, especially steel rods for concrete enforcement, by a movable bending unit |
CN113319164B (en) * | 2021-05-12 | 2024-04-12 | 山东省聊城市金正钢管有限公司 | Rapid pipe bending equipment for industrial production |
Family Cites Families (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE3301061A1 (en) | 1983-01-14 | 1984-04-05 | Daimler-Benz Ag, 7000 Stuttgart | Bending machine |
DE3919607C2 (en) * | 1989-06-15 | 1994-05-05 | Heinz Ruhl | Device for bending rod-shaped material |
DE3941291A1 (en) * | 1989-12-14 | 1991-06-20 | Peddinghaus Carl Ullrich Dr | BENDING SYSTEM FOR STEEL ROD |
-
1994
- 1994-12-07 DE DE4443518A patent/DE4443518A1/en not_active Withdrawn
-
1995
- 1995-11-09 EP EP95117627A patent/EP0715907B1/en not_active Expired - Lifetime
- 1995-11-09 DE DE59500175T patent/DE59500175D1/en not_active Expired - Fee Related
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN102784854A (en) * | 2011-05-17 | 2012-11-21 | 长春旭阳富维江森汽车座椅骨架有限责任公司 | Double-end automatic steel wire bending machine |
Also Published As
Publication number | Publication date |
---|---|
DE4443518A1 (en) | 1996-06-13 |
EP0715907A1 (en) | 1996-06-12 |
DE59500175D1 (en) | 1997-05-15 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
DE2839978C2 (en) | ||
DE4020804C2 (en) | Device and method for welding connecting components to a pipe | |
DE69208243T2 (en) | Wire bending device | |
DE3513954A1 (en) | DEVICE FOR PUNCHING ANGLE PROFILE STEEL BARS | |
WO2015048836A1 (en) | Bending press and bending method | |
EP0715907B1 (en) | Method of bending steel bars, in particular for bending of concrete reinforcement bars to form reinforcement stirrups | |
EP0965413B1 (en) | Installation for carrying out a series of assembly and/or working operations on workpieces, in particular on small components | |
DE2644900B2 (en) | Profiling machine | |
WO1998014288A1 (en) | Processing machine | |
EP3031572A1 (en) | Tool exchange apparatus for use in a machining centre and machining centre for machining a workpiece | |
DE69411523T2 (en) | Bending system for bending machine | |
EP0432468B1 (en) | Machine for bending steel bars | |
CH677658A5 (en) | ||
EP0478903B1 (en) | Device for changing cassettes for a web-fed rotary press | |
AT393641B (en) | Apparatus for bending steel rods to form concrete reinforcing elements | |
DE3310058C2 (en) | ||
EP0502233B1 (en) | Automated transport device, particularly for transferring workpieces between presses | |
EP0910491B1 (en) | Method and device for producing wire lattice mats | |
DE10212951A1 (en) | Device for removing workpieces machined in a press | |
DE2952768C2 (en) | Transfer machine with several workstations for assembling and / or processing workpieces | |
DE10003126C5 (en) | Rolling apparatus and method for adjusting such | |
EP2210701A1 (en) | Linear production system | |
DE1602912B2 (en) | Method for positioning a workpiece on the workpiece table of a machine tool and device for carrying out this method | |
AT395691B (en) | Apparatus for machining tubular or bar-shaped workpieces | |
DE3408439C2 (en) | Device for punching workpieces for steel construction, plant construction and the like. |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
PUAI | Public reference made under article 153(3) epc to a published international application that has entered the european phase |
Free format text: ORIGINAL CODE: 0009012 |
|
AK | Designated contracting states |
Kind code of ref document: A1 Designated state(s): DE IT |
|
17P | Request for examination filed |
Effective date: 19960525 |
|
GRAG | Despatch of communication of intention to grant |
Free format text: ORIGINAL CODE: EPIDOS AGRA |
|
GRAH | Despatch of communication of intention to grant a patent |
Free format text: ORIGINAL CODE: EPIDOS IGRA |
|
17Q | First examination report despatched |
Effective date: 19960925 |
|
GRAH | Despatch of communication of intention to grant a patent |
Free format text: ORIGINAL CODE: EPIDOS IGRA |
|
GRAA | (expected) grant |
Free format text: ORIGINAL CODE: 0009210 |
|
AK | Designated contracting states |
Kind code of ref document: B1 Designated state(s): DE IT |
|
REF | Corresponds to: |
Ref document number: 59500175 Country of ref document: DE Date of ref document: 19970515 |
|
ITF | It: translation for a ep patent filed |
Owner name: ING. A. GIAMBROCONO & C. S.R.L. |
|
PLBE | No opposition filed within time limit |
Free format text: ORIGINAL CODE: 0009261 |
|
STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: NO OPPOSITION FILED WITHIN TIME LIMIT |
|
26N | No opposition filed | ||
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: DE Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 19980801 |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: IT Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20051109 |