EP0621095A1 - Procédé pour le redressage intermittent de fils - Google Patents
Procédé pour le redressage intermittent de fils Download PDFInfo
- Publication number
- EP0621095A1 EP0621095A1 EP94810038A EP94810038A EP0621095A1 EP 0621095 A1 EP0621095 A1 EP 0621095A1 EP 94810038 A EP94810038 A EP 94810038A EP 94810038 A EP94810038 A EP 94810038A EP 0621095 A1 EP0621095 A1 EP 0621095A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- wire
- straightening
- rotor
- straightening rotor
- rotation
- 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
Links
- 238000000034 method Methods 0.000 title claims description 13
- 230000003111 delayed effect Effects 0.000 claims description 2
- 238000010586 diagram Methods 0.000 description 4
- 238000004891 communication Methods 0.000 description 2
- 230000007423 decrease Effects 0.000 description 1
- 238000004090 dissolution Methods 0.000 description 1
- 230000000737 periodic effect Effects 0.000 description 1
- 230000002441 reversible effect Effects 0.000 description 1
- 230000001360 synchronised effect Effects 0.000 description 1
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
- B21F1/02—Straightening
- B21F1/026—Straightening and cutting
Definitions
- a method of the type mentioned at the outset is known from EP-O 313 769-B1.
- the device for carrying out the method which is also evident from this patent, is characterized in that the mass moment of inertia of the straightening rotor is dimensioned so small that the straightening rotor can be decelerated and accelerated at least approximately at the same time as the wire.
- the conveying means for advancing the wire and the straightening rotor can be synchronously accelerated and decelerated by a common drive device. In this way, the mechanical problems of flying scissors, respectively. moving the straightening rotor in the wire direction can be avoided.
- the object of the invention is now to provide a method of the type mentioned with a view to reduced wear. to develop a longer lifespan for straightening rotor stones.
- the solution is that the straightening rotor rotates with a rotational direction that alternates between the working cycles.
- the straightening rotor is therefore no longer constantly driven in the same direction. Rather, the direction of rotation is changed at least from time to time. For the straightening stones, this results in more uniform wear and tear. a longer service life.
- the direction of rotation is preferably changed periodically. However, the direction of rotation does not have to be changed for every working cycle. Two, three or more working cycles in succession can also have the same direction of rotation. Due to the periodic change of direction, the degree of wear of the straightening stones should be approximately the same in both directions at all times.
- the straightening rotor is advantageously brought into an angular position in which the torque exerted by the wire on the straightening rotor is essentially zero. If the straightening rotor is simply braked and then locked, the wire has an internal twist and thus a certain internal tension. This can be eliminated by briefly turning the straightening rotor back after braking.
- the wire and straightening rotor are preferably accelerated and decelerated essentially synchronously.
- the straightening rotor and the conveying means for transporting the wire are driven by two separate drives (e.g. electric motors).
- a common control ensures synchronous operation.
- the feed per rotor revolution (straightening quality) can be chosen almost freely. be programmed.
- the control circuit which, among other things, specifies the changing direction of rotation, is advantageously programmable for the purpose of setting the ratio of the feed speed of the wire to the angular speed of the straightening rotor.
- the device according to the invention can thus be easily adjusted to different wire thicknesses.
- the control circuit In order to cancel the twisting of the wire at the end of a working cycle, which leads to a torque transmitted to the straightening rotor, the control circuit generates z. B. a signal that leads to a number of revolutions of the straightening rotor opposite to the direction of rotation of the corresponding work cycle. This enables the rotor drive to be activated in the pauses between cuts. The drive does not have to generate a standstill torque during this time and therefore does not need any energy from the supply network.
- a wire 1 shows a block diagram of a device for carrying out the method according to the invention.
- a wire 1 is pushed through a stationary straightening rotor 2 with the aid of conveying means (still to be described in detail).
- the wire 1 experiences radial deflections in straightening stones 22.1, 22.2, 22.3.
- the wire 1 is cut at desired intervals with a cutting device 3.
- the funding includes drive wheels 4.1, 4.2, 4.3, which are driven by a gear 5 via indicated axes.
- the gear 5 is z.
- the straightening rotor 2 in turn is driven by a motor 12 via a toothed belt 13.
- the two motors 7 and 12 are each via a separate servo amplifier 8. 11 controlled.
- the servo amplifiers 8, 11 in turn are supplied with direct current by a converter 9.
- the entire system is fed by a 3-phase network 10.
- the switching stages 8 and 11 are controlled and monitored by a CNC controller 15.
- the CNC controller 15 is in data exchange with a known PLC circuit 14. Furthermore, it receives signals from rotary angle transmitters 17, 18 and possibly 19. Via an input device 16, certain operating conditions and / or operating modes can be specified.
- the input device is connected to the CNC via a communication line.
- the rotary encoder 18 is coupled to a measuring wheel 20 which, for. B. is designed as a counter wheel to the drive wheel 4.3.
- the wire feed at the input of the straightening rotor 2 can thus be measured.
- a measuring wheel 21 can also be provided at the output of the straightening rotor 2, which determines the feed and the speed of the straightened wire (rotary angle sensor 19).
- the rotational speed of the straightening rotor 2 is determined with the rotary angle sensor 17 provided on the axis of the motor 12.
- Time t is plotted on the abscissa and speed v on the ordinate.
- v1 stands for the speed of the wire 1 (measuring wheel 20).
- v2 stands for the speed of the motor 12, and is proportional to the rotational speed of the straightening rotor 2.
- wire 1 and straightening rotor 2 are accelerated synchronously (time interval t 1).
- time interval t 2 the two motors 7 and 12 run at an essentially constant speed.
- the relationship between wire feed speed and rotation speed is, among other things, by determines the wire thickness.
- the motors 7 and 12 are decelerated to a standstill (time interval t3).
- time interval t4 the wire is cut by the cutting device 3.
- the next work cycle begins.
- the two motors 7 and 12 are accelerated again.
- the direction of rotation of the motor 12 and thus the straightening rotor 2 was reversed. That is, it rotates in a direction opposite to the direction of rotation of the previous work cycle (t1, ..., t4).
- the direction of rotation of the motor 7, which is responsible for the feed speed is of course not reversed, i.e. v1 remains positive.
- the motors 7 and 12 again rotate at a substantially constant speed.
- wire 1 and rotor 2 are decelerated again (time interval t7).
- the second work cycle is ended.
- the direction of rotation of the rotor 2 is reversed again.
- H. 2 begins again from the beginning (t 1, t 2 ).
- the direction of rotation does not need to be rotated after each working cycle. You can e.g. B. also inverted every two, three, etc. work cycles. This can be particularly advantageous if it is not desired that the rotor come to a complete standstill. The rotor only needs to be stopped whenever the direction of rotation is changed.
- the device shown in FIG. 1 can of course also be used to straighten a wire in a conventional manner (cf. EP-O 313 769-B1). This is indicated in Fig. 2b.
- the course of the speeds v1, v2 are the same in terms of both sign and amount at corresponding times.
- the different operating modes are e.g. B. stored in the PLC circuit 14 and can be selected by input on the input device 16. Because independent drives are available for the wire feeder and the straightening rotor, which are "connected" only by a common control ("electronic axis"), there are a multitude of possibilities for operating the device.
- the direction of rotation of the straightening rotor can also be changed by using a suitable gear. In this sense, it is not absolutely necessary to provide two separate motors for the wire feed and the straightening rotor.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Wire Processing (AREA)
- Electrical Discharge Machining, Electrochemical Machining, And Combined Machining (AREA)
- Manufacture Of Motors, Generators (AREA)
- Coating With Molten Metal (AREA)
- Metal Extraction Processes (AREA)
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CH913/93 | 1993-03-25 | ||
CH91393 | 1993-03-25 |
Publications (2)
Publication Number | Publication Date |
---|---|
EP0621095A1 true EP0621095A1 (fr) | 1994-10-26 |
EP0621095B1 EP0621095B1 (fr) | 1997-04-02 |
Family
ID=4198095
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP94810038A Expired - Lifetime EP0621095B1 (fr) | 1993-03-25 | 1994-01-21 | Procédé pour le redressage intermittent de fils |
Country Status (7)
Country | Link |
---|---|
US (1) | US5473923A (fr) |
EP (1) | EP0621095B1 (fr) |
JP (1) | JP2694508B2 (fr) |
AT (1) | ATE150991T1 (fr) |
CA (1) | CA2119474C (fr) |
DE (1) | DE59402270D1 (fr) |
ES (1) | ES2102794T3 (fr) |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE19503850C1 (de) * | 1995-02-06 | 1996-06-13 | Post Friedhelm Sondermasch | Nichtrotierender Richtapparat für Biegemaschinen mit integrierter Meßvorrichtung |
EP0829317A2 (fr) * | 1996-09-10 | 1998-03-18 | Pave Automation Design And Development Limited | Machine à dressage pour fils |
EP2374552A3 (fr) * | 2010-04-06 | 2012-05-30 | Wafios Ag | Machine de dressage et de coupe |
CN109382465A (zh) * | 2017-08-04 | 2019-02-26 | 矢崎总业株式会社 | 电线矫直装置 |
Families Citing this family (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP3031178B2 (ja) | 1994-09-28 | 2000-04-10 | 株式会社村田製作所 | 複合高周波部品 |
ATE197005T1 (de) * | 1996-02-15 | 2000-11-15 | Pave Automation Design Dev | Vorrichtung zum richten von draht |
US5931484A (en) * | 1997-05-19 | 1999-08-03 | L&P Property Management Company | Baling wire cart |
US6301944B1 (en) * | 1999-09-22 | 2001-10-16 | General Electric Company | Methods of fabricating mechanized welding wire |
EP1588813B1 (fr) * | 2004-04-23 | 2006-08-30 | Koenig & Bauer Aktiengesellschaft | Appareil de brochage avec dispositif d' alimentation pour au moins un fil à brocher sans fin |
Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0313769A2 (fr) * | 1987-10-01 | 1989-05-03 | H.A. Schlatter Ag | Procédé et appareil pour le redressage intermittent de fils |
Family Cites Families (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3879978A (en) * | 1974-01-07 | 1975-04-29 | Reynolds Metals Co | Wire unreeling system |
DE2523831C3 (de) * | 1975-05-30 | 1978-07-27 | Louis, Hans, 5650 Solingen | Vorrichtung zum Richten von Draht |
ATE139917T1 (de) * | 1991-11-29 | 1996-07-15 | Pantex Stahl Ag | Richtbacken für eine richtvorrichtung zum geraderichten von draht |
-
1994
- 1994-01-21 AT AT94810038T patent/ATE150991T1/de not_active IP Right Cessation
- 1994-01-21 DE DE59402270T patent/DE59402270D1/de not_active Expired - Fee Related
- 1994-01-21 EP EP94810038A patent/EP0621095B1/fr not_active Expired - Lifetime
- 1994-01-21 ES ES94810038T patent/ES2102794T3/es not_active Expired - Lifetime
- 1994-02-17 US US08/197,882 patent/US5473923A/en not_active Expired - Fee Related
- 1994-03-18 JP JP6085192A patent/JP2694508B2/ja not_active Expired - Fee Related
- 1994-03-18 CA CA002119474A patent/CA2119474C/fr not_active Expired - Fee Related
Patent Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0313769A2 (fr) * | 1987-10-01 | 1989-05-03 | H.A. Schlatter Ag | Procédé et appareil pour le redressage intermittent de fils |
Non-Patent Citations (1)
Title |
---|
SOVIET INVENTIONS ILLUSTRATED Week KC7, 30-03-1983 Derwent Publications Ltd., London GB & SU-A-917884 * |
Cited By (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE19503850C1 (de) * | 1995-02-06 | 1996-06-13 | Post Friedhelm Sondermasch | Nichtrotierender Richtapparat für Biegemaschinen mit integrierter Meßvorrichtung |
EP0829317A2 (fr) * | 1996-09-10 | 1998-03-18 | Pave Automation Design And Development Limited | Machine à dressage pour fils |
EP0829317A3 (fr) * | 1996-09-10 | 1998-05-06 | Pave Automation Design And Development Limited | Machine à dressage pour fils |
EP2374552A3 (fr) * | 2010-04-06 | 2012-05-30 | Wafios Ag | Machine de dressage et de coupe |
CN109382465A (zh) * | 2017-08-04 | 2019-02-26 | 矢崎总业株式会社 | 电线矫直装置 |
US11370018B2 (en) | 2017-08-04 | 2022-06-28 | Yazaki Corporation | Electric wire straightening device |
Also Published As
Publication number | Publication date |
---|---|
DE59402270D1 (de) | 1997-05-07 |
CA2119474A1 (fr) | 1994-09-26 |
US5473923A (en) | 1995-12-12 |
ES2102794T3 (es) | 1997-08-01 |
CA2119474C (fr) | 2000-05-23 |
JPH06297065A (ja) | 1994-10-25 |
ATE150991T1 (de) | 1997-04-15 |
JP2694508B2 (ja) | 1997-12-24 |
EP0621095B1 (fr) | 1997-04-02 |
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