US20030010084A1 - Wire bending device - Google Patents
Wire bending device Download PDFInfo
- Publication number
- US20030010084A1 US20030010084A1 US10/203,991 US20399102A US2003010084A1 US 20030010084 A1 US20030010084 A1 US 20030010084A1 US 20399102 A US20399102 A US 20399102A US 2003010084 A1 US2003010084 A1 US 2003010084A1
- Authority
- US
- United States
- Prior art keywords
- wire
- tools
- bending
- bent
- mechanical means
- 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.)
- Abandoned
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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
-
- 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
Abstract
The invention concerns a wire bending device comprising a bending head (3) bearing two bending tools (30, 31) between which the wire to be bent (2) is passed, each of the tools being capable of being driven in rotation concentrically around the other which is then fixed It comprises: mechanical means (1) for moving the wire to be bent (2) axially in one direction or another (XA, XB); mechanical mans for driving the tools (30, 31) in rotation, in the two directions (YA, YB), about an axis (34) parallel to those (32, 33) of the tools (30, 31); mechanical means for moving in the two directions (ZA, ZB) the tools (30, 31) in a plane perpendicular to the axis (34) about which the latter can rotate; and calculating and controlling means for managing simultaneously the operation of the mechanical means so that the movements generated by the latter are superimposed.
Description
- (1) Field of the Invention
- The present invention relates to a wire bending device.
- There are presently two large categories of wire bending machines, those used for large series that comprise bending tools placed in a position corresponding to the profile to be imparted to the metal wire, and those used for small series that permit to pass from one profile to another without it being necessary, in contrast to the preceding ones, to change tools.
- All the machines of this second category make use of the same bending method consisting in passing the wire between two bending tools, of which one is fixed and the other is mobile in rotation concentrically in relation to the fixed one.
- Practically, the wire coming from a reel or a coil passes through a straightener, then is picked up by a feeding system bringing the desired length of it to a bending head, which is generally mobile in rotation around the wire's axis, and comprising a fixed catch for maintaining the wire and a bending roller capable of rotating concentrically about the catch, in order to bend the wire.
- Changing of the curving direction is achieved by changing the starting position of the catch and the roller, the positions of which are reversed with respect to the wire, which is carried out by means of an axial rotation around the wire or, in case said rotation is not possible, by means of displacement after their retraction into the head.
- These numerical control machines are very flexible in use, and permit producing series of pieces ranging from several dozens to several thousands.
- Victims of their success, they are used for larger series, since, with experience, their programming becomes easy.
- Nevertheless, for large series, one quickly finds out that they are slow, because of the retraction time for the roller and the catch, which represents about 40% of the overall time of a bending operation.
- In order to cope with this drawback, it has been proposed, in particular in FR 2,744,941, to pass the wire to be bent between two rollers, each one capable of being driven in rotation concentrically around the other one, which is fixed in this case.
- This method avoids the retraction periods of the bending roller, since both rollers can at will become alternatively bending roller or fixed catch for maintaining the wire.
- In order to implement this method, there has been proposed in this document a device comprising, in a bending head mobile in rotation around the wire's axis, on the one hand, two parallel shafts, between which passes transversally, externally with respect to said bending head, the wire to be bent, said shafts being connected through a part comprising two identical gears integral with each other, not coaxially, by their flanks, said shafts crossing, each, axially and jointly one of said gears; on the other hand, for each of said shafts, a guiding path in the shape of an arch of a circle, the guiding path of a shaft being coaxial in relation to the other shaft; and yet on the other hand, a gear driven in rotation in one direction or in the other, positioned in the region in front of the concave portions of said guiding paths and such as to mesh with said gears.
- This device is relatively complex and has the drawback of being unreliable in the course of time.
- This lack of reliability is increased in that the steering of the shafts in the guiding paths is made through sliding runners suffering from wearing problems.
- This invention aims at coping with this drawback by providing a bending device operating according to the same method, said device being a more robust and therefore more reliable design.
- The wire bending device this invention refers to is of the type comprising one bending head carrying two bending tools between which passes the wire to be bent, each one of said tools being capable of being driven in rotation concentrically around the other one, which is fixed in this case, and it is characterized essentially in that it comprises:
- mechanical means capable of shifting the wire to be bent axially in one direction or another,
- mechanical means capable of driving said bending tools in rotation, in both directions, around an axis parallel to that of said tools,
- mechanical means capable of shifting, in both directions, said tools in a plane perpendicular to the axis around which the latter can rotate,
- and computation and control means capable of governing the simultaneous operation of said mechanical means, so as to obtain a superposition of the movements the latter generate.
- The superposition of the movements generated by the various mechanical means permits carrying out, in a relative manner, the positioning and the immobilization of one of the tools in relation to the wire to be bent, while causing the other tool to rotate concentrically about the immobilized tool.
- According to an additional feature of the device according to the invention, the axis around which the tools can rotate is arranged at the intersection of the axis of displacement of the wire to be bent and a line joining the axes of the tools.
- According to another additional feature of the device according to the invention, the bending tools consist of rollers.
- According to another additional feature of the device according to the invention, the mechanical means consist of stepping motors associated with transmission means.
- According to a particular embodiment of the device according to the invention, the bending head is mounted in rotation on an arm, which is, in turn, mounted pivotally with respect to feeding means for the wire to be bent.
- The advantages and features of the device according to the invention will become more evident by the following description referring to the attached drawing, which represents a non-restrictive embodiment. In the attached drawing:
- FIG. 1 is a partial schematic view of the bending device according to the invention.
- FIGS. 2a, 2 b, and 2 c are partial schematic views of the same device, during different stages of a bending operation.
- Referring to FIG. 1, one can see a schematic view of a bending device according to the invention, which comprises feeding means1 for a
wire 2 to be bent and abending head 3. - The feeding means1 is capable, through the action of the driving means, not shown, to pull the
wire 2 axially, in the direction of thebending head 3, arrow XA, or in the opposite direction, arrow XB. - The
bending head 3 comprises two bending tools, in this case tworollers shafts wire 2 to be bent. - The bending head is mobile in rotation around an
axis 34, parallel to theshafts - In addition, the
bending head 3 is mobile in rotation with respect to the feeding means 1, so as to describe a path in the form of an arch of a circle, clockwise, arrow ZA, or counterclockwise, arrow ZB. - One should note that it is also possible for the displacement of the
bending head 3 to be performed rectilinearly. This variant is advantageous from the point of view of the programming of the computation and control means, but its construction is more complex. - The different movements are carried out through the use of mechanical means, not shown, such as for example stepping motors associated with transmission means, the operation of which is simultaneously governed by computation and control means permitting a superposition of these movements.
- The superposition of these movements permits immobilizing the
roller 30 or theroller 31 with respect to thewire 2 to be bent, while causing to rotate around theimmobilized roller wire 2. - The strict superposition of the movements according to YA, YB, ZA and ZB, permits the rotation of one of the rollers around de other one that is positioned on the axis parallel to the
wire 2 without however remaining immobile. The immobilization is therefore achieved in a relative manner by the displacement of thewire 2 according to XA and XB, which permits canceling the displacement of the rollers. - Referring to FIG. 2a, one can see that when bending the
wire 2 in the counterclockwise direction, theroller 30 remains immobile, whereas theroller 31 rotates concentrically in relation to theroller 30 according to arrow B, in order to bend thewire 2. - The movement according to arrow B is achieved, commencing from a starting position such as the one shown in FIG. 1, by the superposition of a movement according to YB and ZB, as well as, successively, the movements according to XB and XA
- The backward, then forward movement of the
wire 2 according to XB and XA is required in that in the bending operation shown, the bending angle is larger than 90′. - In FIG. 2b, the
bending head 3 is also placed in the starting position, whereas thewire 2 advances according to XA in order to perform another bending operation. - Referring now to FIG. 2c, one can see an operation of bending of the
wire 2 in the clockwise direction, thus in a relative manner, theroller 31 remains immobile, whereas theroller 30 rotates concentrically in relation to theroller 31 according to arrow A, in order to bend thewire 2. - The movement according to arrow A is achieved by the superposition of a movement according to YA and ZA, as well as, successively, the movements according to XB and XA.
- In the same way as for the bending operation shown in FIG. 2a, the forward and backward movement of the
wire 2 according to XB and XA is required in that the bending angle is larger than 90° . - The bending device according to the invention permits carrying out the bending of the wire. Such a bending device uses tested mechanical means offering therefore a greater reliability.
Claims (5)
1. Wire bending device of the type comprising one bending head carrying two bending tools between which passes the wire to be bent, each one of said tools being capable of being driven in rotation concentrically around the other one, which is then fixed, characterized in that it comprises:
mechanical means (1) capable of shifting the wire to be bent axially in one direction or another (XA, XB),
mechanical means capable of driving said bending tools (30, 31) in rotation, in botli directions (YA, YB), around an axis (34) parallel to those (32, 33) of said tools (30, 31),
mechanical means capable of shifting, in both directions ZA, ZB), said tools in a plane perpendicular to the axis (34) around which the latter can rotate,
and computation and control means capable of governing the simultaneous operation of said mechanical means, so as to obtain a superposition of the movements the latter generate.
2. Device according to claim 1 , characterized in that the axis (34) around which the tools (30, 31) can rotate is arranged at the intersection of the axis of displacement of the wire to be bent (2) and a line joining the axes of the tools (32, 33).
3. Device according to claim 1 or claim 2 , characterized in that the bending tools consist of rollers (30, 31).
4. Device according to any of the preceding claims, characterized in that the mechanical means consist of stepping motors associated with transmission means.
5. Device according to any of the preceding claims, characterized in that the bending head (3) is mounted in rotation on an arm, which is, in turn, mounted pivotally with respect to feeding means (1) for the wire to be bent (2).
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US10/949,748 US7188504B2 (en) | 2000-02-21 | 2004-09-24 | Wire bending device |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR00/02086 | 2000-02-21 | ||
FR0002086A FR2805188B1 (en) | 2000-02-21 | 2000-02-21 | WIRE BENDING DEVICE |
Related Child Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US10/949,748 Continuation-In-Part US7188504B2 (en) | 2000-02-21 | 2004-09-24 | Wire bending device |
Publications (1)
Publication Number | Publication Date |
---|---|
US20030010084A1 true US20030010084A1 (en) | 2003-01-16 |
Family
ID=8847178
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US10/203,991 Abandoned US20030010084A1 (en) | 2000-02-21 | 2001-02-21 | Wire bending device |
Country Status (10)
Country | Link |
---|---|
US (1) | US20030010084A1 (en) |
EP (1) | EP1313577B1 (en) |
AT (1) | ATE285860T1 (en) |
AU (1) | AU2001235727A1 (en) |
BR (1) | BR0108543A (en) |
DE (1) | DE60108133T2 (en) |
ES (1) | ES2234812T3 (en) |
FR (1) | FR2805188B1 (en) |
PT (1) | PT1313577E (en) |
WO (1) | WO2001062411A1 (en) |
Cited By (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20100147048A1 (en) * | 2008-12-17 | 2010-06-17 | Automated Industrial Machinery, Inc. Dba Aim, Inc. | Devices, Systems and Methods for Automated Wire Bending |
US20160167105A1 (en) * | 2011-07-26 | 2016-06-16 | Medtronic Vascular, Inc. | Apparatus and method for forming a wave form for a stent from a wire |
US20160220786A1 (en) * | 2015-01-29 | 2016-08-04 | Redsmith, Inc. | Rapid Insertion Integrated Catheter and Method of Using an Integrated Catheter |
CN108787824A (en) * | 2018-08-07 | 2018-11-13 | 常州市鼎龙环保设备有限公司 | Bending machine for blank pipe Pattern iron supporter |
CN109201941A (en) * | 2018-09-21 | 2019-01-15 | 河南永益同丰智能科技有限公司 | A kind of bar bending process equipment for building field |
CN109454178A (en) * | 2018-11-27 | 2019-03-12 | 桂林电力电容器有限责任公司 | A kind of Wire bender for bending paper bag flat type copper wire |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102005047078B3 (en) * | 2005-09-30 | 2007-05-03 | Trumer Schutzbauten Gesmbh | Bending machine, in particular cable bending machine |
DE102009003260B4 (en) | 2009-05-20 | 2023-04-27 | BSH Hausgeräte GmbH | Method and device for bending a tube |
Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3680347A (en) * | 1971-01-13 | 1972-08-01 | Schenck Corp | Bending machine |
US3742749A (en) * | 1971-02-03 | 1973-07-03 | J Markin | Tube-coiling machine |
US3894422A (en) * | 1972-03-29 | 1975-07-15 | Peddinghaus Carl Ullrich Dr | Bending machine, more particularly for steel rods for reinforcing concrete |
US4571974A (en) * | 1983-05-18 | 1986-02-25 | Evg Entwicklungs- U. Verwertungs-Gesellschaft Mbh | Bending machine for wire or strip material |
Family Cites Families (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE3421338A1 (en) * | 1984-06-08 | 1985-12-12 | Volkswagenwerk Ag, 3180 Wolfsburg | Stored-program automatic handling machine with a bending device |
FR2744941B1 (en) * | 1996-02-16 | 1998-05-15 | Scdc Sarl | METHOD AND DEVICE FOR BENDING METAL WIRES |
DE69805273D1 (en) * | 1998-02-04 | 2002-06-13 | Fabien Casters | Device for bending metal wires |
-
2000
- 2000-02-21 FR FR0002086A patent/FR2805188B1/en not_active Expired - Fee Related
-
2001
- 2001-02-21 EP EP01907855A patent/EP1313577B1/en not_active Expired - Lifetime
- 2001-02-21 BR BR0108543-3A patent/BR0108543A/en not_active IP Right Cessation
- 2001-02-21 PT PT01907855T patent/PT1313577E/en unknown
- 2001-02-21 DE DE60108133T patent/DE60108133T2/en not_active Expired - Lifetime
- 2001-02-21 US US10/203,991 patent/US20030010084A1/en not_active Abandoned
- 2001-02-21 AU AU2001235727A patent/AU2001235727A1/en not_active Abandoned
- 2001-02-21 ES ES01907855T patent/ES2234812T3/en not_active Expired - Lifetime
- 2001-02-21 AT AT01907855T patent/ATE285860T1/en active
- 2001-02-21 WO PCT/FR2001/000498 patent/WO2001062411A1/en active IP Right Grant
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3680347A (en) * | 1971-01-13 | 1972-08-01 | Schenck Corp | Bending machine |
US3742749A (en) * | 1971-02-03 | 1973-07-03 | J Markin | Tube-coiling machine |
US3894422A (en) * | 1972-03-29 | 1975-07-15 | Peddinghaus Carl Ullrich Dr | Bending machine, more particularly for steel rods for reinforcing concrete |
US4571974A (en) * | 1983-05-18 | 1986-02-25 | Evg Entwicklungs- U. Verwertungs-Gesellschaft Mbh | Bending machine for wire or strip material |
Cited By (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20100147048A1 (en) * | 2008-12-17 | 2010-06-17 | Automated Industrial Machinery, Inc. Dba Aim, Inc. | Devices, Systems and Methods for Automated Wire Bending |
US8631674B2 (en) * | 2008-12-17 | 2014-01-21 | Aim, Inc. | Devices, systems and methods for automated wire bending |
US20140130567A1 (en) * | 2008-12-17 | 2014-05-15 | Automated Industrial Machinery, Inc., Dba Aim, Inc. | Devices, Systems and Methods for Automated Wire Bending |
US9592546B2 (en) * | 2008-12-17 | 2017-03-14 | Aim, Inc. | Devices, systems and methods for automated wire bending |
US20160167105A1 (en) * | 2011-07-26 | 2016-06-16 | Medtronic Vascular, Inc. | Apparatus and method for forming a wave form for a stent from a wire |
US10518315B2 (en) * | 2011-07-26 | 2019-12-31 | Medtronic Vascular, Inc. | Apparatus and method for forming a wave form for a stent from a wire |
US20160220786A1 (en) * | 2015-01-29 | 2016-08-04 | Redsmith, Inc. | Rapid Insertion Integrated Catheter and Method of Using an Integrated Catheter |
CN108787824A (en) * | 2018-08-07 | 2018-11-13 | 常州市鼎龙环保设备有限公司 | Bending machine for blank pipe Pattern iron supporter |
CN109201941A (en) * | 2018-09-21 | 2019-01-15 | 河南永益同丰智能科技有限公司 | A kind of bar bending process equipment for building field |
CN109454178A (en) * | 2018-11-27 | 2019-03-12 | 桂林电力电容器有限责任公司 | A kind of Wire bender for bending paper bag flat type copper wire |
Also Published As
Publication number | Publication date |
---|---|
EP1313577A1 (en) | 2003-05-28 |
EP1313577B1 (en) | 2004-12-29 |
DE60108133D1 (en) | 2005-02-03 |
FR2805188A1 (en) | 2001-08-24 |
ATE285860T1 (en) | 2005-01-15 |
BR0108543A (en) | 2002-10-22 |
DE60108133T2 (en) | 2005-12-08 |
ES2234812T3 (en) | 2005-07-01 |
WO2001062411A1 (en) | 2001-08-30 |
FR2805188B1 (en) | 2002-06-07 |
AU2001235727A1 (en) | 2001-09-03 |
PT1313577E (en) | 2005-05-31 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
AS | Assignment |
Owner name: ATELIERS DE CONSTRUCTIONS MECANIQUES LATOUR ET FIL Free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNOR:LATOUR, YVES;REEL/FRAME:013369/0021 Effective date: 20020919 |
|
STCB | Information on status: application discontinuation |
Free format text: ABANDONED -- FAILURE TO RESPOND TO AN OFFICE ACTION |