EP0349953A2 - Appareil pour travailler un matériau en forme de profil - Google Patents

Appareil pour travailler un matériau en forme de profil Download PDF

Info

Publication number
EP0349953A2
EP0349953A2 EP89112119A EP89112119A EP0349953A2 EP 0349953 A2 EP0349953 A2 EP 0349953A2 EP 89112119 A EP89112119 A EP 89112119A EP 89112119 A EP89112119 A EP 89112119A EP 0349953 A2 EP0349953 A2 EP 0349953A2
Authority
EP
European Patent Office
Prior art keywords
bending
rod
mandrel
gap
holder
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.)
Granted
Application number
EP89112119A
Other languages
German (de)
English (en)
Other versions
EP0349953A3 (en
EP0349953B1 (fr
Inventor
Heinz Ruhl
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
Publication of EP0349953A2 publication Critical patent/EP0349953A2/fr
Publication of EP0349953A3 publication Critical patent/EP0349953A3/de
Application granted granted Critical
Publication of EP0349953B1 publication Critical patent/EP0349953B1/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
    • 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 device for processing bar material, such as reinforcing steel, comprising at least one bending slide which can be moved along the bar material and has a bending mandrel and a bending roller which can be rotated about said bar, and a counterholder which is preferably displaceable substantially perpendicular to the longitudinal axis of the bar material.
  • a corresponding device can be found, for example, in EP-A-0 238 026.
  • the device in this regard comprises two bending carriages, one of which is bent alternately with one bending carriage and the rod-shaped material is held with the other bending carriage.
  • a counter-holder is also provided in the area of the bending slide so that the rod-shaped material is not bent in an uncontrolled manner between the bending slide during bending.
  • the counterholders in the form of bolts or rollers, for example, can be gradually adjusted perpendicularly to the longitudinal axis of the rod material by inserting them into holes in a perforated strip arranged with respect to one another.
  • the counter-holder is designed exclusively essentially perpendicular to the longitudinal axis of the rod material and continuously adjustable.
  • the counter holder can be driven with an electromotive or mechanical drive for fixing in the desired position.
  • a possible counter embodiment is to be provided, which is driven by means of a spindle.
  • the setting of the counter-holder takes place automatically as a function of the diameter of the rod material to be bent and the diameters of the bending mandrel and / or bending roller.
  • the automatic setting can be program-controlled, which ensures that the rod material is always given the desired final shape depending on the materials and mandrels or rolls used. Consequently, the perforated strips known from the prior art are dispensable, and, as mentioned, can only be adjusted with great effort.
  • the setting can be determined by the distance between the tangents that the bending roller and mandrel form when they are in contact with the material, without the material being deformed.
  • a gap which clamps the rod material and is present approximately centrally between the bending slides.
  • the measure ensures that the material to be bent, coming from a template, is introduced into the gap in such a way that it lies on top of one another, so that when the material is gripped by the bending slide, it is ensured that the materials do not lie next to one another but only one above the other come. This in turn ensures that the materials always have the desired final shape within the permissible tolerances.
  • the gap can be delimited by two mutually parallel, preferably web-like clamping jaws, one of which has a clamping jaw facing an ejection direction to the diameter of the rods to be fixed materials is adjustable and can be pivoted in such a way that there is no obstruction when the bent material is ejected.
  • the gap can completely surround the material on the circumference, thereby ensuring that the material cannot slip out during bending and / or when the position of the gap changes.
  • the relevant measures mean that it is no longer necessary for one bending slide to hold the rod-shaped material while the other bending slide is being moved and vice versa. Rather, the clamping jaws delimiting the gap can hold the rod material in such a way that the bending slides can be moved at the same time without the bending shapes being adversely affected thereby.
  • the central arrangement of the clamping gap also ensures that they do not constitute a hindrance to the bending slide itself.
  • the material is preferably raised by means of at least one element such as a fork and / or the elements forming the gap and raised above the bending mandrel, so that the material can be bent in another direction.
  • the counterholder and the bending roller are adjusted at the same time.
  • a device (10) for bending rod-shaped material (12) is shown in a purely schematic representation.
  • the device (10) can have a structure, such as European patent applications 0 121 896 or 0 238 026 show it.
  • the device (10) consequently comprises two preferably displaceable bending slides (14) and (16), each of which has a bending mandrel (18) or (20) and a bending crank or bending roller (22) or (24) which can be pivoted about the center thereof .
  • each bending slide (14), (16) has additional brackets (26) and (28) which are essentially perpendicular to the material (12) running between the bending slides (14) and (16) and are continuously adjustable.
  • the counterholders (26) and (28) are aligned with the bending mandrels (18) and (20) by means of spindles (30) and (32) so that when Bending of the rod-shaped material prevents the material running between the bending mandrels (18) and (20) from bending.
  • spindles (30) and (32) so that when Bending of the rod-shaped material prevents the material running between the bending mandrels (18) and (20) from bending.
  • only that counter-holder of the bending slide needs to interact with the rod-shaped material (12) on which the material is bent.
  • the rod-shaped material is placed on so-called bending tables (34) or (36) in accordance with the drawing according to FIG. 1, it being important to ensure that when several materials (12) are bent at the same time, they are arranged one above the other. This is ensured by the features shown in FIGS. 3 to 5.
  • FIG. 2 shows a top view of the bending slide (14) with a bending table (34), bending mandrel (18) and bending roller or crank (22). Furthermore, the counter-holder (26) can be seen, which is infinitely adjustable by means of the spindle (30). The adjustability of the counter-holder (26) can preferably be set in a program-controlled manner as a function of the diameter of the material (12) to be bent, the diameter of the bending mandrel (18) and the diameter of the bending roller (22). This then ensures that the curved shapes match within the permissible tolerances.
  • the z. B. in a below the surface of the table (34) moved by the spindle holder is ensured with structurally simple means that an alignment to both sides of the rod-shaped material (12) is possible, so depending on the direction the material is bent.
  • the material (12) is bent counterclockwise, whereas the dashed representation is intended to indicate a clockwise bending process.
  • the counter-holder (26) is in the dashed position (38) to prevent uncontrolled bending of the material (12) from this side.
  • An element (31) with which the rod-shaped material (12) can be raised in order to be deposited on the opposite side of the bending mandrel (18) is furthermore drawn purely schematically. This opens up the possibility of bending the material (12) either clockwise or counterclockwise using structurally simple means.
  • the element (31) can be fork-shaped elements that can be raised by means of hydraulic cylinders, displaced parallel to the spindle (30) and then lowered again or vice versa.
  • the elements (31) can be lowered into the plane below the bending slide (14) and (16) in order not to hinder their movement. Synchronous displacement can also take place together with the bending slides (14) and (16).
  • FIGS. 3 to 5 show an embodiment of a device for bending rod-shaped material that preferably has two movable bending slides corresponding to those in FIG. 1. 4, these bending carriages (14) and (16) are shown in their outer end positions.
  • the rod-shaped material designated by the reference symbol (40) is fed from a material store (42) via a ramp-shaped slope (44) to a gap (46), the width of which can be adjusted depending on the diameter of the rod-shaped material (40). This ensures that the materials (40) which are to be bent at the same time are present one above the other in the gap (46), that is to say also one above the other between those which are not shown Bending roll and mandrel come to rest. This ensures that the materials to be bent all receive the same final shape.
  • the gap (46) is delimited by a vertically extending end section of the ramp-shaped slope (44) and by an adjustable and pivotable jaw element (50).
  • Arms (54) and (56) can be pivoted about an axis (52) laterally from the gap (50) and consequently also from the ramp-shaped slope (44), so that the bent material can be pivoted by pivoting the arms (54) and (56) to feed a tray (58).
  • a clamping device (60) is shown, by means of which the rod-shaped materials (12) are preferably clamped in the middle between the bending slides, not shown.
  • the clamping device comprises jaws (62) and (64) which surround the rod-shaped materials (12) on the circumference in the retracted state.
  • the jaw (62) has a nose (66) projecting in the direction of the jaw (64), which closes the gap (68) formed between the jaws (62) and (64) on the head side, that is to say the rod-shaped materials (12) on the top covers.
  • the jaw (62) is designed to be displaceable with respect to the jaw (64).
  • the nose (66) partially protrudes into a correspondingly adapted recess in the jaw (64) in order to ensure that even with larger gaps (68) they can be completely covered by the nose (66).
  • the jaw (62) is designed to be displaceable relative to the jaw (64) so as to achieve a desired gap width adjust. Furthermore, the unit consisting of the jaws (62) and (64) can be moved on the one hand perpendicular to the longitudinal axis of the rod materials, that is along the arrows (70), and on the other hand can be raised or lowered. This movement is caused, for example, by means of the cylinder (72). Lifting and lowering or shifting along the arrow (70) is necessary if, as shown in FIG. 2, the rod-shaped material (32) is to be folded over with respect to the bending mandrel (18), i.e. when the position changes from the solid representation in the dashed and vice versa. The various positions are also indicated in FIG. 5.
  • the raising or lowering of the material (12) takes place synchronously with the movement of the fork-shaped elements (31), so that it is ensured that the rod-shaped material is folded over to the required extent.
  • a procedure in this regard i.e. a left / right bend to e.g. To achieve a Z shape can be seen, for example, in FIG. 6.
  • Fig. 6 a the unbent rod-shaped material (12) is shown.
  • the bending roller (22) is bent around the mandrel (18).
  • Fig. 6 b) The bending roller is then retracted and the slide having the bending roller (22) and the bending mandrel (18) is moved to the position of the rod-shaped material in which a bend is to be made counterclockwise.
  • the rod-shaped material is then raised perpendicular to the plane of the drawing by means of the clamping device (60) or the fork-shaped elements (31).
  • the bending roller (22) is pivoted in the direction of the arrow (74).
  • the counter-holder (38) is also moved along the path (30), as indicated by the arrow (76).
  • the material (12) is moved along the arrow (78) and then lowered. This position is shown in Fig. 6 d).
  • the bending roller (22) is then rotated counterclockwise around the bending mandrel (18) in order to bend the material in the opposite direction, so that the Z shape shown in FIG. 6 e) is obtained.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Bending Of Plates, Rods, And Pipes (AREA)
EP89112119A 1988-07-05 1989-07-03 Appareil pour travailler un matériau en forme de profil Expired - Lifetime EP0349953B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3822713A DE3822713A1 (de) 1988-07-05 1988-07-05 Vorrichtung zum bearbeiten von stangenmaterial
DE3822713 1988-07-05

Publications (3)

Publication Number Publication Date
EP0349953A2 true EP0349953A2 (fr) 1990-01-10
EP0349953A3 EP0349953A3 (en) 1990-11-14
EP0349953B1 EP0349953B1 (fr) 1993-10-06

Family

ID=6357995

Family Applications (1)

Application Number Title Priority Date Filing Date
EP89112119A Expired - Lifetime EP0349953B1 (fr) 1988-07-05 1989-07-03 Appareil pour travailler un matériau en forme de profil

Country Status (2)

Country Link
EP (1) EP0349953B1 (fr)
DE (2) DE3822713A1 (fr)

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5113683A (en) * 1990-01-26 1992-05-19 Eaton Leonard Picot S.A. Pipe bending machine having two bending heads
EP0592798A1 (fr) * 1992-09-15 1994-04-20 M.E.P. Macchine Elettroniche Piegatrici S.p.A. Méthode de cintrage et appareil relatifs à cette méthode
US5927132A (en) * 1998-04-30 1999-07-27 Schnell Spa Method of bending bars
US6813922B2 (en) * 2000-04-03 2004-11-09 Numalliance Bending machine for rods with resettable folding shank
US7124486B2 (en) 2000-10-31 2006-10-24 Macsoft. S.A. Fast and automated tool-changing device with standard conical tool support for digitally controlled bending machine
CN102441594A (zh) * 2012-01-06 2012-05-09 中山市奥美森工业技术有限公司 一种折弯机
CN106077338A (zh) * 2016-07-27 2016-11-09 珠海市英利特机电工程有限公司 一种全自动双辊折弯系统
CN106077183A (zh) * 2016-07-27 2016-11-09 珠海市英利特机电工程有限公司 一种双辊折弯机构

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4031463A1 (de) * 1990-10-05 1992-04-09 Heinz Ruhl Verfahren und anordnung zum foerdern und biegen von stabfoermigen materialien

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH348031A (it) * 1955-12-21 1960-07-31 Ghiringhelli Enrico Apparecchio per piegare barre di ferro per cemento armato e simili
DE1139351B (de) * 1960-04-30 1962-11-08 Krupp Dolberg G M B H Betonstahlbiegemaschine
JPS5964123A (ja) * 1982-10-05 1984-04-12 Shimizu Constr Co Ltd 鉄筋の自動曲げ加工装置
IT210698Z2 (it) * 1987-05-11 1989-01-11 Oscam Spa Macchina per la piegatura di tondini o simili elementi metallici

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5113683A (en) * 1990-01-26 1992-05-19 Eaton Leonard Picot S.A. Pipe bending machine having two bending heads
EP0592798A1 (fr) * 1992-09-15 1994-04-20 M.E.P. Macchine Elettroniche Piegatrici S.p.A. Méthode de cintrage et appareil relatifs à cette méthode
US5375447A (en) * 1992-09-15 1994-12-27 M.E.P. Macchine Elettroniche Piegatrici Spa Method to carry out bends and relative device
US5927132A (en) * 1998-04-30 1999-07-27 Schnell Spa Method of bending bars
US6813922B2 (en) * 2000-04-03 2004-11-09 Numalliance Bending machine for rods with resettable folding shank
US7124486B2 (en) 2000-10-31 2006-10-24 Macsoft. S.A. Fast and automated tool-changing device with standard conical tool support for digitally controlled bending machine
CN102441594A (zh) * 2012-01-06 2012-05-09 中山市奥美森工业技术有限公司 一种折弯机
CN102441594B (zh) * 2012-01-06 2013-09-25 中山市奥美森工业技术有限公司 一种折弯机
CN106077338A (zh) * 2016-07-27 2016-11-09 珠海市英利特机电工程有限公司 一种全自动双辊折弯系统
CN106077183A (zh) * 2016-07-27 2016-11-09 珠海市英利特机电工程有限公司 一种双辊折弯机构

Also Published As

Publication number Publication date
EP0349953A3 (en) 1990-11-14
DE58905813D1 (de) 1993-11-11
EP0349953B1 (fr) 1993-10-06
DE3822713A1 (de) 1990-01-18

Similar Documents

Publication Publication Date Title
AT400415B (de) Verfahren zur positionierung eines werkstückes und manipulatorvorrichtung für eine biegemaschine
DE69202678T2 (de) Multi-funktionnelle Rohrbiegemaschine.
DE4335901A1 (de) Doppelkopf-Rohrbiegemaschine
DE19717472A1 (de) Verfahren und Vorrichtung zum Profilbiegen mit modularen Biegestationen
DE69311491T2 (de) Verfahren zum Biegen und Vorrichtung dafür
DE4022951A1 (de) Biegerichtmaschine fuer lange profilabschnitte
DE3407363A1 (de) Vorrichtung zum durchfuehren von biegeversuchen
EP0349953B1 (fr) Appareil pour travailler un matériau en forme de profil
DE2537382A1 (de) Vorrichtung zum biegen von rohren
DE202020002598U1 (de) Biegemaschine zum Biegen eines Werkstücks aus Flachmaterial und Steuereinheit für eine solche Biegemaschine
DE2531290C3 (de) Verfahren zum Biegen von Kettengliedern und Kettengliedbiegemaschine zur Durchführung des Verfahrens
CH617876A5 (fr)
CH678499A5 (fr)
EP0497780B1 (fr) Procede de cintrage oppose d'une tole
DE3711970A1 (de) Pressbiegemaschine fuer rohre
DE3220489A1 (de) Siebdruckmaschine
DE3835173C2 (fr)
DE68915247T2 (de) Automatisierbare Rundwalzeneinrichtung mit verzahnten Walzen.
DE2711340B2 (de) Vorrichtung zum Kaltbiegen von Strängmaterial
DE1912394C3 (de) Schweißvorrichtung für das Verschweißen des längsgerichteten Schweißspaltes schlitzrohrartig geformter Hohlkörper, insbesondere konischer Masten
DE2203913A1 (de) Verfahren und vorrichtung zum ankuppen von drahtpinnen
EP0313760A2 (fr) Appareil pour fabriquer des poutres de construction ou similaires
DE2833096C3 (de) Formstation für Schraubennahtrohre
DE2900672A1 (de) Biegevorrichtung und verfahren zum biegen eines langgestreckten materialstranges
DE2060686A1 (de) Verfahren und Vorrichtung zur Herstellung von Rohrschlangen

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): CH DE FR GB GR IT LI NL

RBV Designated contracting states (corrected)

Designated state(s): CH DE FR GB IT LI NL

PUAL Search report despatched

Free format text: ORIGINAL CODE: 0009013

AK Designated contracting states

Kind code of ref document: A3

Designated state(s): CH DE FR GB GR IT LI NL

17P Request for examination filed

Effective date: 19910508

17Q First examination report despatched

Effective date: 19920218

GRAA (expected) grant

Free format text: ORIGINAL CODE: 0009210

AK Designated contracting states

Kind code of ref document: B1

Designated state(s): CH DE FR GB IT LI NL

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

Ref country code: NL

Effective date: 19931006

Ref country code: GB

Effective date: 19931006

REF Corresponds to:

Ref document number: 58905813

Country of ref document: DE

Date of ref document: 19931111

ITF It: translation for a ep patent filed
ET Fr: translation filed
NLV1 Nl: lapsed or annulled due to failure to fulfill the requirements of art. 29p and 29m of the patents act
GBV Gb: ep patent (uk) treated as always having been void in accordance with gb section 77(7)/1977 [no translation filed]

Effective date: 19931006

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

Ref country code: LI

Effective date: 19940731

Ref country code: CH

Effective date: 19940731

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: FR

Effective date: 19950331

REG Reference to a national code

Ref country code: CH

Ref legal event code: PL

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

Ref country code: DE

Effective date: 19950401

REG Reference to a national code

Ref country code: FR

Ref legal event code: ST

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;WARNING: LAPSES OF ITALIAN PATENTS WITH EFFECTIVE DATE BEFORE 2007 MAY HAVE OCCURRED AT ANY TIME BEFORE 2007. THE CORRECT EFFECTIVE DATE MAY BE DIFFERENT FROM THE ONE RECORDED.

Effective date: 20050703