EP0226167B1 - Procédé de pliage de matériau allongé ainsi que machine pour exécuter ce procédé - Google Patents

Procédé de pliage de matériau allongé ainsi que machine pour exécuter ce procédé Download PDF

Info

Publication number
EP0226167B1
EP0226167B1 EP86117135A EP86117135A EP0226167B1 EP 0226167 B1 EP0226167 B1 EP 0226167B1 EP 86117135 A EP86117135 A EP 86117135A EP 86117135 A EP86117135 A EP 86117135A EP 0226167 B1 EP0226167 B1 EP 0226167B1
Authority
EP
European Patent Office
Prior art keywords
bending
machine according
fixtures
bending machine
drive
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
Application number
EP86117135A
Other languages
German (de)
English (en)
Other versions
EP0226167A3 (en
EP0226167A2 (fr
Inventor
Helmut Dipl.-Ing. Dischler
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.)
Individual
Original Assignee
Individual
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.)
Filing date
Publication date
Application filed by Individual filed Critical Individual
Priority to AT86117135T priority Critical patent/ATE82883T1/de
Publication of EP0226167A2 publication Critical patent/EP0226167A2/fr
Publication of EP0226167A3 publication Critical patent/EP0226167A3/de
Application granted granted Critical
Publication of EP0226167B1 publication Critical patent/EP0226167B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Images

Classifications

    • 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
    • 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
    • B21D7/02—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

Definitions

  • the invention relates to a bending machine for bending strand-like material, in particular wires, pipes, cables, profiles or the like, with two bending apparatuses arranged next to one another at a distance, each having at least two bending pressure pieces and drives for moving at least one of the bending pressure pieces essentially transversely to Have material, the drives are designed to work in opposite directions.
  • Bending machines currently in use are described in DE-OS 16 52 822 and DE-PS 537 904. They have two or more bending apparatuses next to each other, each with two bending pressure pieces. In the bending machine according to the first-mentioned document, the distance between the bending apparatuses can also be adjusted so that bends with different distances from one another can be produced.
  • Another bending machine is known from DE-GM 18 81 368, which has a bending apparatus with roller-shaped bending pressure pieces. Furthermore, roller guides are provided for the wire to be bent.
  • a bending principle is used in the bending machines described above, in which the material to be bent is bent around one of the bending pressure pieces by applying a bending force.
  • the inner bending radius then corresponds to the radius of the bending pressure piece.
  • Large bending radii in the order of magnitude of the respective bending apparatus and above cannot be produced with this bending principle.
  • the bending pressure pieces must be exchanged for other bending pressure pieces with the corresponding radius in order to produce different bending radii.
  • FR-A-832 536 there are various embodiments of Bending machines of the type mentioned at the outset are disclosed, in which the strand-like material is deformed into an arc between two bending apparatuses arranged at a distance from one another, each with two bending pressure pieces.
  • the bending apparatuses can be rotated in opposite directions with the aid of a drive and thus act essentially transversely to the material with the aid of the bending pressure pieces.
  • the drives have worm gears that engage in the outer jacket of the bending apparatus and, on the other hand, cable pulls.
  • the bending apparatuses are arranged in a stationary manner, while in the embodiments according to FIGS. 4 and 5 they are guided so as to be movable towards one another.
  • the rod-shaped material is clamped on the bending pressure pieces together with a bending template made of resilient material.
  • the pipe to be bent should be filled with material, for example sand or the like, or with a liquid in order to distribute the loads on the pipe more evenly.
  • bending machines shown in FR-A-832 536 are partly inoperative, or clean and reproducible bends cannot be achieved without the use of additional aids, such as bending templates or fillings. These may be the reasons why the bending principle on which this bending machine is based - as far as is known - was no longer taken up in other publications, but rather that all publications which subsequently became known deal with the bending principle described at the outset.
  • the invention has for its object to design a bending machine of the type mentioned so that extremely clean and reproducible bends can be achieved with it, and without the use of additional aids.
  • the bending pressure pieces each have a freely rotatable jacket. Due to the roller-shaped configuration of the bending pressure pieces, the material to be bent is kept free of any further forces, since the material can slip between the bending pressure pieces during bending. In this way, only turning or bending moments are impressed during the bending process, and it is avoided that other forces act. The result of this is that the material bends out freely and evenly in the space between the two bending apparatuses.
  • the object can also be achieved in that at least one of the bending devices is guided so that it can move freely, so that only bending moments are applied.
  • the distance between the bending devices can decrease in accordance with the progress of the bending process due to the free mobility of at least one of the bending devices.
  • the free mobility can also be replaced by a positive guide to reduce the distance between the bending devices in accordance with the progress of the bending process and in accordance with a movement sequence which occurs with freely movable bending devices, so that in this case too, only bending moments are applied.
  • Both embodiments are particularly suitable for bending material with a rough surface, such as structural steel, because this material would hardly slide between the two bending pressure pieces according to the first-mentioned solution. The occurrence of additional forces is avoided by the relative movement of the two bending devices during the bending process.
  • the bending apparatus If the same bending radii are always to be produced with the bending machine according to the first-mentioned solution, it is sufficient for the bending apparatus to have a fixed distance from one another. If this distance can be changed, it is possible to produce different bending radii accordingly. This can be done in that the bending apparatus can be fixed at different intervals.
  • the bending pressure pieces can be moved transversely to the material in a simple and known manner with the aid of a rotary drive.
  • the bending pressure pieces can be arranged on a turntable.
  • Linear drives are to be understood in particular as hydraulic or pneumatic cylinders or also spindle drives or the like.
  • each bending apparatus has its own, separately reversible drive. This opens up the possibility of being able to drive the axes of rotation not only in opposite directions, but also in the same direction, or even just one of the axes of rotation. In this way, various bends can be produced.
  • the above-mentioned forced guidance of the bending apparatuses can be designed in a simple manner as a pivoting device to which the bending apparatuses are attached, the pivoting devices being pivotable relative to one another via at least one drive.
  • the swivel devices can each as two guide links can be formed, each forming a four-bar arch. It is useful that the guide links each run parallel to each other and also have the same length, so that the respective four-bar arch forms a parallelogram.
  • a simple construction results when the guide links are articulated on the bending apparatus in the axes of the bending pressure pieces.
  • a guide link of the one bending device should be synchronized with a guide link of the other bending device via a transmission.
  • This can be done in a simple manner by means of two meshing gears or gear segments.
  • the gearwheel transmission is particularly simple if one of the guide links is mounted in the pivot axis of the associated four-bar link, that is, its articulation point only executes a rotary movement.
  • the two four-bar arches can be moved in a simple manner, they should be suspended from a pivotably mounted drive link, preferably in a V-shaped arrangement with pivot axes lying close to one another.
  • the free ends of the drive link can then be coupled to the drive motor.
  • the drive motor acting on one of the link connections.
  • both bending devices are only over actuates a drive motor, which is particularly advantageous for training as a hand-held device, since this saves weight.
  • the drive motor can then be designed, for example, as a pressure cylinder with a return spring.
  • Other drives such as, for example, electrical or, in exceptional cases, hydraulic drives are also possible.
  • each bending apparatus may be expedient for one bending pressure piece of each bending apparatus to lie in the axis of rotation, that is to say it serves only as an abutment. In this case, only one of the bending pressure pieces is moved transversely to the material to be bent.
  • the distance between the bending pressure pieces of a bending apparatus should also be adjustable in order to further improve the adaptability.
  • the bending pressure pieces taper conically towards their free ends. This opens up the possibility of inserting the material to be bent between the bending pressure pieces without play. In this way, the same bending results can be achieved at the same angles of rotation regardless of the thickness of the material.
  • the invention provides that a pressure piece is arranged between the bending apparatus, which prevents the formation of a circular arc, so that a U-bend can be made with a straight connection between the corner bends.
  • the bending machine (1) shown in Figures (1) and (2) has a table top (2) with welded-on feet (3, 4).
  • the table top (2) has a straight slot (5) in which two bending devices (6, 7) are easily displaceable, but non-rotatably. This is done by means of two rollers (8, 9) or (10, 11) arranged symmetrically to the central axis, the diameter of which corresponds to the width of the slot (5).
  • a rotary drive is provided in each of the bending apparatuses (6, 7), for example an electric motor with a gear or a hydraulic motor. Both drive a shaft (12) or (13), at their free ends Turntable (14) or (15) is attached. There are two bending pressure pieces (16, 17) and (18, 19) on the turntables (14, 15), which extend parallel to the axes of rotation of the shafts (12, 13). They each consist of an axis (20, 21) or (22, 23) connected to the turntable (14) or (15) and a roller (25, 26) or (27, 28) attached to it. The rollers (25, 26) and (27, 28) are rotatable about the axes (20, 21) and (22, 23).
  • Figures (3) and (4) show the main operating modes of the bending machine (1) according to Figures (1) and (2), namely in a top view of the two bending devices (6, 7) and their turntables ( 14, 15) with the bending pressure pieces (16, 17) or (18, 19).
  • the table top (2) is omitted for the sake of clarity.
  • the turntables (14, 15) are in the position shown in FIG. (2), so that a material to be bent, for example a wire (29), is inserted between the bending pressure pieces (16, 17) or (18, 19) can be. If the two turntables (14, 15) are driven simultaneously and in opposite directions, as can be seen in FIGS. (3) and (4) by indicating the arrows C, D, E, F, the bending pressure pieces (16, 17) or (18, 19) is moved essentially transversely against the wire (29) and thus a bending moment is applied to the wire (29) so that the wire (29) begins to bend freely.
  • the distance between the two turntables (14, 15) automatically shortens until the U-shape shown in FIG. (4) is reached.
  • the bending radius depends on the distance between the turntables (14, 15) at the start of the bending process.
  • the bend of the wire (29) can also be produced with a fixed distance between the two turntables (14, 15).
  • the fact that the distance between the turntables (14, 15) can no longer change during the bending process is replaced by the fact that the rollers (25, 26) and (27, 28) allow the wire (29) to slide out accordingly , provided the wire (29) is relatively smooth.
  • a pure bending moment is impressed on the wire (29), i. H. there are no additional forces.
  • the bending radius then depends on the previously set distance between the two turntables (14, 15).
  • Figure (5) shows another bending machine (32) as it is particularly suitable for a portable hand-held device that can be used, for example, on construction sites. It has a base plate (33) which carries a hydraulic cylinder (34) in which a piston (35) with an upwardly projecting piston rod (36) is guided. The lower side of the piston (35) in this view can be pressurized via an opening (37). A return spring (38) acts on the other side of the piston (35) and tends to push the piston (35) down again when the pressure is released.
  • the upper, free end of the piston rod (36) is connected to an articulated connection (39) of two V-shaped pressure plates (40, 41).
  • the pressure lugs (40, 41) are in turn connected to the other ends via articulated connections (42, 43) with two drive levers (44, 45) which run in the manner of an upturned V and are attached to the base plate (33) by bolts ( 46, 47) are rotatably mounted.
  • the pressure plates (40, 41) are pushed up and thereby pivot the drive levers (44, 45) in the direction of the arrows K, L around the bolts (46, 47).
  • Two guide links (48) and (49) are also freely rotatably mounted on the bolts (46, 47).
  • a further guide link (50, 51) each runs parallel to it, which is articulated at one end on the drive levers (44) or (45) approximately in the middle between the bolts (46) or (47) and the articulated connections (42) or (43) are hung.
  • the guide links (48, 50) and (49, 51) are articulated at their other ends to a bending device (52, 53). In this way, the guide links (48, 50) with the bending device (52) and the guide links (49, 51) with the bending device (53) kinematically form four-articulated arches, which with the aid of the drive levers (44, 45) move towards or away from each other can be pivoted.
  • the bending apparatuses (52, 53) each consist of a turntable (54, 55) with bending pressure pieces (56, 57, 58, 59) that are perpendicular to the plane of the drawing.
  • the respective upper bending pressure pieces (57, 58) are composed of a stud (60) or (61) and a roller (62, 63) placed over them, while the respective lower bending pressure pieces ( 56, 59) consist of only one stud (65, 66). All four stud bolts (60, 61, 65, 66) protrude from the rear.
  • the guide links (48, 49, 50, 51) are articulated to these projections.
  • a downward sagging of the wire (69) then occurs between the bending apparatuses (52, 53), the bending angle depending on the pivoting angle of the drive lever (44, 45).
  • the desired bending radius is determined by the distance between the two bending devices (52, 53) at the beginning of the bending process. The larger it is, the larger the bending radius that arises during the bending process.
  • wires can be produced with the desired bending angle and radius without having to change anything on the bending machine (32) itself.
  • the bending machine (70) shown in FIG. (6) has a table top (71) which has a straight slot (72) Has.
  • Two bending devices (73, 74) are easily displaceable, but non-rotatably guided in this slot (72). This can be done in the same way as in the embodiment of Figures (1) and (2).
  • the bending apparatus (73) on the left in this view has a bending pressure piece (75) attached to it, serving as an abutment, and a further bending pressure piece (76) arranged at a distance from it.
  • the latter is attached to the free end of a piston rod (77) extending transversely to the slot (72), the other end of which is attached to a piston (79) guided in a hydraulic cylinder (78).
  • the hydraulic cylinder (78) is fixed in place on the bending apparatus (73).
  • the right-hand bending apparatus (74) in this view also has two bending pressure pieces (80, 81) which are arranged at a distance from one another and are each seated at the free ends of piston rods (82, 83) which extend transversely to the slot (72) extend and are guided by pistons (84, 85) in hydraulic cylinders (86, 87). The latter are attached to the bending apparatus (74) in a stationary manner.
  • the bending machine (70) shown in Figure (6) can of course also be designed so that it has two of the bending devices (73) or two of the bending devices (74) - each in a mirror-image version.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Bending Of Plates, Rods, And Pipes (AREA)
  • Wire Processing (AREA)

Claims (16)

  1. Machine de pliage pour plier un matériau allongé, en particulier des fils métalliques, des tubes, des câbles, des profilés ou objets similaires, présentant deux appareils de pliage (6, 7 ; 52, 53) agencés en juxtaposition à distance et comportant, à chaque fois, au moins deux organes presseurs de pliage (16, 17, 18, 19 ; 56, 57, 58, 59) et des entraînements (34) pour imprimer des mouvements à au moins l'un respectif des organes presseurs de pliage (16, 17, 18, 19 ; 56, 57, 58, 59), pour l'essentiel transversalement par rapport au matériau (29 ; 69 ; 88), les entraînements étant réalisés pour fonctionner dans des sens opposés,
    caractérisée par le fait que les organes presseurs de pliage (16, 17, 18, 19 ; 56, 57, 58, 59) possèdent respectivement une enveloppe (25, 26, 27, 28 ; 62, 63) pouvant tourner librement.
  2. Machine de pliage pour plier un matériau allongé, en particulier des fils métalliques, des tubes, des câbles, des profilés ou objets similaires, également selon la revendication 1, présentant deux appareils de pliage (6, 7 ; 52, 53 ; 73, 74) agencés en juxtaposition à distance et comportant, à chaque fois, au moins deux organes presseurs de pliage (16, 17, 18, 19 ; 56, 57, 58, 59 ; 75, 76, 80, 81) et des entraînements pour imprimer des mouvements à au moins l'un respectif des organes presseurs de pliage (16, 17, 18, 19 ; 56, 57, 58, 59 ; 75, 76, 80, 81), pour l'essentiel transversalement par rapport au matériau (29, 69 ; 88), les entraînements étant réalisés pour fonctionner dans des sens opposés, et au moins l'un des appareils de pliage (6, 7 ; 52, 53 ; 73, 74) étant guidé avec mobilité, par rapport à l'autre, dans un plan perpendiculaire aux axes (12, 13),
    caractérisée par le fait qu'au moins l'un des appareils de pliage (6, 7 ; 52, 53 ; 73, 74) est guidé avec libre mobilité, de telle sorte qu'exclusivement des couples de flexion soient imposés.
  3. Machine de pliage pour plier un matériau allongé, en particulier des fils métalliques, des tubes, des câbles, des profilés ou objets similaires, également selon la revendication 1,
    présentant deux appareils de pliage (6, 7 ; 52, 53 ; 73, 74) agencés en juxtaposition à distance et comportant, à chaque fois, au moins deux organes presseurs de pliage (16, 17, 18, 19 ; 56, 57, 58, 59 ; 75, 76, 80, 81) et des entraînements pour imprimer des mouvements à au moins l'un respectif des organes presseurs de pliage (16, 17, 18, 19 ; 56, 57, 58, 59 ; 75, 76, 80, 81), pour l'essentiel transversalement par rapport au matériau (29, 69 ; 88), les entraînements étant réalisés pour fonctionner dans des sens opposés, et au moins l'un des appareils de pliage (6, 7 ; 52, 53 ; 73, 74) étant guidé avec mobilité, par rapport à l'autre, dans un plan perpendiculaire aux axes (12, 13),
    caractérisée par le fait qu'un guidage forcé (48, 50 ; 49, 51 ; 34) est prévu pour diminuer la distance comprise entre les appareils de pliage (52, 53) en concordance avec la progression lors du processus de pliage, et en concordance avec un processus moteur qui s'ajuste, lorsque les appareils de pliage (52, 53) sont guidés avec libre mobilité, de telle sorte qu'exclusivement des couples de flexion soient imposés.
  4. Machine de pliage selon la revendication 1,
    caractérisée par le fait que les appareils de pliage (6, 7) peuvent être verrouillés à demeure à des distances différentes.
  5. Machine de pliage selon l'une des revendications 1 à 4,
    caractérisée par le fait que les appareils de pliage (6, 7 ; 52, 53) sont munis d'un entraînement en rotation.
  6. Machine de pliage selon l'une des revendications 1 ou 4,
    caractérisée par le fait qu'au moins l'un respectif des organes presseurs de pliage est relié à un entraînement linéaire (78, 86, 87).
  7. Machine de pliage selon la revendication 3,
    caractérisée par le fait que le guidage forcé est réalisé sous la forme d'un dispositif pivotant (48, 50 ; 49, 51) sur lequel les appareils de pliage (52, 53) sont installés, les dispositifs pivotants (48, 50 ; 49, 51) pouvant pivoter, l'un par rapport à l'autre, par l'intermédiaire d'au moins un entraînement (34).
  8. Machine de pliage selon la revendication 7,
    caractérisée par le fait que les dispositifs pivotants sont respectivement conçus sous la forme de deux biellettes de guidage (48, 50 ; 49, 51) qui matérialisent, à chaque fois, un arceau à quatre articulations.
  9. Machine de pliage selon la revendication 8,
    caractérisée par le fait que les biellettes de guidage (48, 50 ; 49, 51) s'étendent à chaque fois parallèlement l'une à l'autre, et présentent la même longueur.
  10. Machine de pliage selon la revendication 8 ou 9,
    caractérisée par le fait que les biellettes de guidage (48, 50 ; 49, 51) sont articulées, sur les appareils de pliage (52, 53), en coïncidence avec les axes des bras de pliage (56, 57, 58, 59).
  11. Machine de pliage selon les revendications 8 à 10,
    caractérisée par le fait qu'une biellette de guidage (48) de l'un (52) des appareils de pliage est synchronisée, par l'entremise d'un engrenage (67, 68), avec une biellette de guidage (49) de l'autre appareil de pliage (53).
  12. Machine de pliage selon l'une des revendications 8 à 11,
    caractérisée par le fait que l'une respective des biellettes de guidage (48, 49) est montée sur l'axe de pivotement (46, 47) de l'arceau associé à quatre articulations.
  13. Machine de pliage selon l'une des revendications 8 à 12,
    caractérisée par le fait que chaque arceau à quatre articulations est suspendu à une biellette d'entraînement (44, 45) montée à pivotement.
  14. Machine de pliage selon la revendication 13,
    caractérisée par le fait que les biellettes d'entraînement (44, 45) s'étendent en forme de V, avec des axes de pivotement (46, 47) étroitement rapprochés l'un de l'autre.
  15. Machine de pliage selon la revendication 13 ou 14,
    caractérisée par le fait que les extrémités libres des biellettes d'entraînement (44, 45) sont accouplées à un moteur d'entraînement (34).
  16. Machine de pliage selon la revendication 15,
    caractérisée par le fait que les biellettes d'entraînement (44, 45) sont articulées sur deux attaches de pression (40, 41) reliées l'une à l'autre, de manière articulée, en formant un quadrilatère articulé, le moteur d'entraînement (34) agissant sur l'une (39) des liaisons d'articulation.
EP86117135A 1985-12-13 1986-12-09 Procédé de pliage de matériau allongé ainsi que machine pour exécuter ce procédé Expired - Lifetime EP0226167B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT86117135T ATE82883T1 (de) 1985-12-13 1986-12-09 Verfahren zum biegen von strangfoermigem material sowie biegemaschine zur durchfuehrung dieses verfahrens.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3544056 1985-12-13
DE19853544056 DE3544056A1 (de) 1985-12-13 1985-12-13 Biegemaschine

Publications (3)

Publication Number Publication Date
EP0226167A2 EP0226167A2 (fr) 1987-06-24
EP0226167A3 EP0226167A3 (en) 1988-11-23
EP0226167B1 true EP0226167B1 (fr) 1992-12-02

Family

ID=6288337

Family Applications (1)

Application Number Title Priority Date Filing Date
EP86117135A Expired - Lifetime EP0226167B1 (fr) 1985-12-13 1986-12-09 Procédé de pliage de matériau allongé ainsi que machine pour exécuter ce procédé

Country Status (7)

Country Link
US (2) US4798073A (fr)
EP (1) EP0226167B1 (fr)
JP (1) JP2534245B2 (fr)
AT (1) ATE82883T1 (fr)
CA (1) CA1336877C (fr)
DE (2) DE3544056A1 (fr)
ES (1) ES2037005T3 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105215103A (zh) * 2015-09-24 2016-01-06 安徽省宁国市天成科技发展有限公司 一种u形加热管连续加工设备

Families Citing this family (40)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4750346A (en) * 1987-09-25 1988-06-14 Eaton Leonard Technologies, Inc. Link drive for bending arm of tube bending machine
IT1234183B (it) * 1989-03-06 1992-05-05 Piegatrici Macch Elettr Gruppo piegatore brandeggiabile.
BE1006712A3 (nl) * 1993-01-29 1994-11-22 Sumaco Inrichting voor het in een beweging plooien van een reeks naast elkaar liggende draden behorende tot een net.
DE4310773C2 (de) * 1993-04-02 2002-10-17 Martin Reigl Vorrichtung zum freien plastischen Biegen eines Werkstücks
JP2932144B2 (ja) * 1993-12-28 1999-08-09 トヨタ自動車株式会社 パイプ曲げ加工法および装置
JP2991027B2 (ja) * 1994-02-15 1999-12-20 住友金属工業株式会社 熱交換器およびその熱交換器用ｕベンド管の製造に用いる管曲げ方法
US5497643A (en) * 1994-02-16 1996-03-12 Ars Corporation Remote bending apparatus
EP0698429A1 (fr) * 1994-08-25 1996-02-28 Altro Steel N.V. Dispositif de pliage en une opération d'une serie de barres parallèles formant une treillis
KR0182069B1 (ko) * 1995-06-22 1999-04-01 송병준 컷팅블레이드의 절곡시스템
US6012320A (en) * 1998-01-14 2000-01-11 Oxford Suspension, Inc. Leaf spring straightening apparatus
US6173599B1 (en) * 1998-01-14 2001-01-16 Oxford Suspension, Inc. Leaf spring straightening apparatus
US5960664A (en) * 1998-04-21 1999-10-05 Metalsa S. De R.L. Channel forming and punching machine
US5970766A (en) * 1998-04-22 1999-10-26 Metalsa S De R.L. Bending machine for closing channels
US6128811A (en) * 1998-07-15 2000-10-10 Krueger International, Inc Apparatus and method for forming table aprons
CA2245996C (fr) * 1998-08-26 2000-05-09 Kevin James Russell Machine a cintrer des tuyaux
EP1299049B1 (fr) 2000-07-12 2006-12-13 Edwards Lifesciences Corporation Procede et dispositif permettant de former une armature de valvule cardiaque
JP2002192236A (ja) * 2000-12-25 2002-07-10 Nhk Spring Co Ltd 長尺材の曲げ加工装置
US6460395B1 (en) * 2001-05-07 2002-10-08 Vought Aircraft Industries, Inc. System and method for bending a structural member
US6769282B2 (en) * 2002-05-17 2004-08-03 Henden Industries, Inc. One-step offset bender
US20050109074A1 (en) * 2003-11-21 2005-05-26 Olsen Vincent C. Method and computer controlled apparatus for bending elongate material utilizing a pure bending moment
NL1025692C1 (nl) * 2004-03-11 2005-09-13 Dako Werk Dowidat Kg Buigmachine voor het buigen van strippen, platen, profielen, rond materiaal en dikwandige buis.
EP1998909B1 (fr) 2006-03-08 2012-12-12 Pro Form S.r.l. Dispositif et procede de pliage d'une bande metallique
JP5184847B2 (ja) * 2007-08-29 2013-04-17 マニー株式会社 医療用縫合針の曲げ加工装置
US8234898B1 (en) 2008-12-12 2012-08-07 Wilson Brian S Bending assembly for extruded stock material
US9296034B2 (en) * 2011-07-26 2016-03-29 Medtronic Vascular, Inc. Apparatus and method for forming a wave form for a stent from a wire
AT513266B1 (de) * 2012-12-17 2014-03-15 Voestalpine Stahl Gmbh Freies Biegeverfahren zum Abkanten eines Blechs
CN103465030B (zh) * 2013-09-04 2016-01-20 建科机械（天津）股份有限公司 盾构管片钢筋笼中单片网的挤压焊接设备
WO2016054189A1 (fr) * 2014-09-30 2016-04-07 Pensa Labs Inc. Appareil à plier les fils
CN104766678B (zh) * 2015-04-30 2016-08-17 宁夏回族自治区电力设计院 利用弯曲设备对电缆的头部进行弯曲成形的方法
CN106734424A (zh) * 2016-11-17 2017-05-31 讯龙型材折弯（合肥）有限公司 一种两侧旋转挤压式s形棒料折弯机构
CN108746418A (zh) * 2018-08-01 2018-11-06 广东金客厨房科技有限公司 一种金属线材的折弯成型装置
US11167337B2 (en) 2018-11-01 2021-11-09 Pensa Labs, Inc. Self cutting wire bender
US11173538B2 (en) 2019-01-11 2021-11-16 Pensa Labs, Inc. Wire bender with self aligned removable bend pin assembly
CN110385383A (zh) * 2019-07-26 2019-10-29 珠海市赛科自动化有限公司 一种电感弯脚装置
BG67466B1 (bg) * 2019-10-10 2022-10-17 Тодоров Киров Валентин Автоматична машина и метод за производство на арматурни заготовки
CN112845724B (zh) * 2021-01-06 2022-10-14 上海闸电东海电力工程有限公司 一种基于电力工程的便捷式液压弯管设备
DE102021127807A1 (de) 2021-10-26 2023-04-27 Bayerische Motoren Werke Aktiengesellschaft Verfahren zum bereichsweisen Umformen schlanker Werkstücke, Werkstück sowie Vorrichtung
CN217047463U (zh) * 2021-12-08 2022-07-26 中建科工集团有限公司 一种弯折装置
CN114472628B (zh) * 2021-12-20 2024-06-11 丹阳市龙鑫合金有限公司 一种用于抗振条棒材的快速折弯装置及其使用方法
CN114378153B (zh) * 2021-12-22 2023-11-28 中船重工西安东仪科工集团有限公司 一种薄壁钢管冷弯模具及冷弯方法

Family Cites Families (27)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BE524712A (fr) *
DE200127C (fr) *
DE542855C (de) * 1927-02-26 1932-01-29 Anton Wagenbach Biegemaschine
DE537904C (de) * 1927-06-16 1931-11-07 C U W Berges Maschinenfabrik Vorrichtung zum Biegen von Rundeisen mit drehbarer, mit Biegedornen versehener Biegeplatte oder Biegehebel
DE559683C (de) * 1930-12-02 1932-09-22 Arsene Fasquelle Maschine zum Biegen von Buegeln, die zur Verbindung der Eiseneinlagen von Betonbauten dienen
FR832536A (fr) * 1937-05-14 1938-09-28 Machine à cintrer les tuyaux
FR49413E (fr) * 1938-04-23 1939-03-24 Machine à cintrer les tuyaux
US2414926A (en) * 1943-06-28 1947-01-28 Boiler Engineering & Supply Co Tube bending machine with pivoted sweep arm
US2696939A (en) * 1950-06-26 1954-12-14 William R Courtney Container top sealing mechanism
US2756428A (en) * 1954-01-21 1956-07-31 Kellersman Robert Vacuum bag clip fastener apparatus
DE1881368U (de) * 1963-08-20 1963-10-24 Maro Maschb G M B H Stahlbiegemaschine.
DE1552970B2 (de) * 1965-04-24 1977-01-13 Maschine zum biegen von versteifungsbuegeln, armierungseisen o.dgl.
DE1652822A1 (de) * 1968-01-26 1971-07-08 Loeser Betonfensterwerk Kg Biegemaschine fuer Betonstahl
GB1298666A (en) * 1969-01-13 1972-12-06 Michael William Lusty Pipe bender
US3606786A (en) * 1969-04-17 1971-09-21 Julian S Taylor Single bar module bender
US3803893A (en) * 1971-08-17 1974-04-16 P Peddinghaus Process for multiple bending of rods and a bending machine for carrying out this process
JPS4977228U (fr) * 1972-10-20 1974-07-04
AT338071B (de) * 1974-12-16 1977-07-25 Evg Entwicklung Verwert Ges Biegemaschine fur stabformiges material, insbesondere fur betonbewehrungsstabe
SU607617A1 (ru) * 1976-04-06 1978-05-25 Предприятие П/Я Х-5539 Устройство дл гибки п-образных изделий
JPS5423353A (en) * 1977-07-25 1979-02-21 Olympus Optical Co Ltd Automatic retrieval method
SU721162A1 (ru) * 1978-03-30 1980-03-15 Проектно-Конструкторское Бюро Министерства Монтажных И Специальных Строительных Работ Ссср Станок дл гибки труб
JPS55126322A (en) * 1979-03-23 1980-09-30 Mitsui Eng & Shipbuild Co Ltd Bending apparatus for metallic material
DE2918813A1 (de) * 1979-05-10 1980-11-20 Brueninghaus Gmbh Stahlwerke Vorrichtung zum biegen von metallstaeben
US4425781A (en) * 1981-02-04 1984-01-17 Hans Oetiker Method for manufacturing hose clamps
CH660398A5 (de) * 1982-01-21 1987-04-15 Peter Lisec Abstandhalterrahmen fuer isolierglasscheiben sowie verfahren zur herstellung desselben und vorrichtung zur durchfuehrung des verfahrens.
DE3311766A1 (de) * 1983-03-31 1984-10-04 Thomas Peter Dipl.-Wirtsch.-Ing. 6120 Michelstadt Lang Maschine zum biegen von strangmaterial
DE3341714A1 (de) * 1983-11-18 1985-05-30 Peddinghaus, Carl Ullrich, Dr., 5600 Wuppertal Anlage zum anbringen von endabschnitt- biegungen an betonstahlstaeben

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105215103A (zh) * 2015-09-24 2016-01-06 安徽省宁国市天成科技发展有限公司 一种u形加热管连续加工设备

Also Published As

Publication number Publication date
CA1336877C (fr) 1995-09-05
US4890469A (en) 1990-01-02
JPS62187524A (ja) 1987-08-15
DE3544056A1 (de) 1987-06-25
EP0226167A3 (en) 1988-11-23
DE3687221D1 (de) 1993-01-14
EP0226167A2 (fr) 1987-06-24
ATE82883T1 (de) 1992-12-15
US4798073A (en) 1989-01-17
ES2037005T3 (es) 1993-06-16
JP2534245B2 (ja) 1996-09-11

Similar Documents

Publication Publication Date Title
EP0226167B1 (fr) Procédé de pliage de matériau allongé ainsi que machine pour exécuter ce procédé
EP0039322B1 (fr) Dispositif à plier des feuilles de tôle
DE69121069T2 (de) Biege-Formeinrichtung von Stangen und Verfahren zum Einbringen von Biegungen der hinteren Enden von Stangen
EP2289643B1 (fr) Dispositif pour le pliage de longues pièces usinées
DE1552017C3 (de) Zwei-Walzenrundbiegemaschine
EP2146810B1 (fr) Bras de cintrage d'un dispositif de cintrage et procédé de cintrage de tubes
DE69831558T2 (de) Tragbares Schneidgerät
DE3935659A1 (de) Verfahren und vorrichtung zum biegen eines bleches
DE69031668T2 (de) Zusätzliche Biegevorrichtung an Metallbearbeitungsmaschinen für die Herstellung von dreidimensionalen Formen
DE2537382A1 (de) Vorrichtung zum biegen von rohren
DE3016047C2 (fr)
EP0120336B2 (fr) Machine à cintrer les tubes
DE2232834A1 (de) Maschine zum automatischen abschneiden von rohrstuecken von einem kontinuierlich vorbewegten rohr
DE2531290B2 (de) Verfahren zum Biegen von Kettengliedern und Kettengliedbiegemaschine zur Durchführung des Verfahrens
DE3538919C2 (fr)
DE3884053T2 (de) Vorrichtung zur Herstellung von gebogenen Rohren.
EP0463132B1 (fr) Machine a cintrer pour le cintrage de materiau en forme de barres
EP0497780B1 (fr) Procede de cintrage oppose d'une tole
EP0109031B1 (fr) Procédé et outil pour cintrer les sections marginales d'une tôle
DE1511488B1 (de) Pressbackenpaar
DE4116940C2 (fr)
DE19915488B4 (de) Vorrichtung zum Biegen eines Metallbandes
DE923468C (de) Biegemaschine, insbesondere fuer Rohre und Stangen
EP2308611B1 (fr) Dispositif pour le cintrage d'éléments allongés
EP1002591A2 (fr) Appareil pour le pliage par étirage de barres ou profilés métalliques

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: A2

Designated state(s): AT BE CH DE ES FR GB GR IT LI LU NL SE

PUAL Search report despatched

Free format text: ORIGINAL CODE: 0009013

AK Designated contracting states

Kind code of ref document: A3

Designated state(s): AT BE CH DE ES FR GB GR IT LI LU NL SE

17P Request for examination filed

Effective date: 19890313

17Q First examination report despatched

Effective date: 19900824

GRAA (expected) grant

Free format text: ORIGINAL CODE: 0009210

AK Designated contracting states

Kind code of ref document: B1

Designated state(s): AT BE CH DE ES FR GB GR IT LI LU NL SE

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: GR

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 19921202

REF Corresponds to:

Ref document number: 82883

Country of ref document: AT

Date of ref document: 19921215

Kind code of ref document: T

REF Corresponds to:

Ref document number: 3687221

Country of ref document: DE

Date of ref document: 19930114

ET Fr: translation filed
GBT Gb: translation of ep patent filed (gb section 77(6)(a)/1977)

Effective date: 19930107

ITF It: translation for a ep patent filed
REG Reference to a national code

Ref country code: ES

Ref legal event code: FG2A

Ref document number: 2037005

Country of ref document: ES

Kind code of ref document: T3

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
EPTA Lu: last paid annual fee
EAL Se: european patent in force in sweden

Ref document number: 86117135.3

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: GB

Payment date: 19961120

Year of fee payment: 11

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: LU

Payment date: 19961201

Year of fee payment: 11

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: BE

Payment date: 19961219

Year of fee payment: 11

Ref country code: AT

Payment date: 19961219

Year of fee payment: 11

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: CH

Payment date: 19961220

Year of fee payment: 11

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: ES

Payment date: 19961227

Year of fee payment: 11

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: NL

Payment date: 19961231

Year of fee payment: 11

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: LU

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 19971209

Ref country code: GB

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 19971209

Ref country code: AT

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 19971209

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: ES

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 19971210

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: LI

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 19971231

Ref country code: CH

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 19971231

Ref country code: BE

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 19971231

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: SE

Payment date: 19980122

Year of fee payment: 12

BERE Be: lapsed

Owner name: DISCHLER HELMUT

Effective date: 19971231

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: NL

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 19980701

GBPC Gb: european patent ceased through non-payment of renewal fee

Effective date: 19971209

REG Reference to a national code

Ref country code: CH

Ref legal event code: PL

NLV4 Nl: lapsed or anulled due to non-payment of the annual fee

Effective date: 19980701

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: DE

Payment date: 19981021

Year of fee payment: 13

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: FR

Payment date: 19981116

Year of fee payment: 13

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: SE

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 19981210

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: FR

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20000831

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: 20001003

REG Reference to a national code

Ref country code: FR

Ref legal event code: ST

REG Reference to a national code

Ref country code: ES

Ref legal event code: FD2A

Effective date: 20010503

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: 20051209