EP0657570B1 - Vorrichtung zum Abzug flexiblen Langguts aus einer Herstellungsmaschine - Google Patents
Vorrichtung zum Abzug flexiblen Langguts aus einer Herstellungsmaschine Download PDFInfo
- Publication number
- EP0657570B1 EP0657570B1 EP94116882A EP94116882A EP0657570B1 EP 0657570 B1 EP0657570 B1 EP 0657570B1 EP 94116882 A EP94116882 A EP 94116882A EP 94116882 A EP94116882 A EP 94116882A EP 0657570 B1 EP0657570 B1 EP 0657570B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- synchronous motor
- digital
- synchronous
- drive
- main 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
Links
- 238000004519 manufacturing process Methods 0.000 title claims description 14
- 230000001360 synchronised effect Effects 0.000 claims description 46
- 230000011664 signaling Effects 0.000 claims description 2
- 238000000605 extraction Methods 0.000 claims 3
- 238000009940 knitting Methods 0.000 claims 1
- 238000009954 braiding Methods 0.000 description 7
- 238000010276 construction Methods 0.000 description 5
- 238000006243 chemical reaction Methods 0.000 description 3
- 230000008878 coupling Effects 0.000 description 2
- 238000010168 coupling process Methods 0.000 description 2
- 238000005859 coupling reaction Methods 0.000 description 2
- 238000013461 design Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 230000008719 thickening Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 1
- 230000007257 malfunction Effects 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 238000012806 monitoring device Methods 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 230000035945 sensitivity Effects 0.000 description 1
- 238000004804 winding Methods 0.000 description 1
Images
Classifications
-
- D—TEXTILES; PAPER
- D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
- D04C—BRAIDING OR MANUFACTURE OF LACE, INCLUDING BOBBIN-NET OR CARBONISED LACE; BRAIDING MACHINES; BRAID; LACE
- D04C3/00—Braiding or lacing machines
- D04C3/48—Auxiliary devices
-
- D—TEXTILES; PAPER
- D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
- D04B—KNITTING
- D04B15/00—Details of, or auxiliary devices incorporated in, weft knitting machines, restricted to machines of this kind
- D04B15/88—Take-up or draw-off devices for knitting products
Definitions
- the invention relates to a device for deduction flexible long goods from a manufacturing machine, in particular a braided, circular or the like.
- Machine that one Trigger drive has a speed corresponding to one of derived from a main drive of the manufacturing machine Master frequency can be influenced, one being the master frequency or a synchronous variable derived therefrom which allows modification Control device is present (see DE-A-2 535 457).
- Braiding machines are generally known in which Bobbins with threads, yarns or wires on a rotor around it Rotation axis are arranged around which the rotor of a Main drive is driven by a gear.
- the rotation of the rotor turns the bobbin around the axis of rotation around e.g. wound or intertwined on a flexible core, if some of the coils rotate in the opposite direction moved and their threads over by known mechanisms or under the threads of the twisted in the opposite direction Coils are lifted.
- Removing the threads from the Winding or pulling off the resulting from the braiding process flexible long goods are carried out with a trigger drive, which drives a take-off disc with which the long goods are drawn off and is wound up if necessary.
- the take-off speed of the long goods must be exactly on the number of revolutions of the rotary rotor be coordinated so that the long goods have the desired structure has, in particular the necessary lay length. It is therefore generally known, a device for withdrawing flexible long goods to train with the features mentioned above.
- this device is the speed of the trigger drive influenced depending on the speed of the main drive.
- the influencing takes place with a from the main drive derived master frequency, which in turn can be influenced, because the desired ratio between trigger drive speed and main drive speed e.g. building the flexible Long goods must be influenced accordingly. It will be one Ratio synchronicity achieved at the desired deduction with regard to the slope of the wicker or of the flexible long goods in relation to the main drive constant remains.
- the invention is based on the object a device with the features mentioned above improve that an adjustable ratio synchronicity between the speeds of the main drive and the trigger drive is achieved with simple means.
- the trigger drive is a synchronous motor, the speed of which corresponds to that of Master drive derived master frequency via a digital Frequency converter is controlled.
- the trigger drive is a controlled synchronous motor.
- a digital frequency converter is made which is the main drive derived master frequency processed or a corresponding Synchronous size.
- the digital frequency conversion entails that the output of the frequency converter always exactly whose input size corresponds to what at analogue conversion is not to be expected, as this is temperature or the like. Influences on the inverter characteristic lead to that are readjusted due to fluctuating output variables got to. Such readjustment is due to the regulation and Cost e.g. a servo axis is not acceptable.
- a synchronous motor many times cheaper, as a servo axis, so that there is a label Trigger device also recommended for economic reasons.
- the device for trouble-free operation be designed so that the maximum master frequency the intended maximum speed of the synchronous motor in Is coordinated in the sense of a proper synchronous drive. This further dimensioning condition for the synchronous motor is also without significant economic effort fulfill.
- the device is designed in that the Main drive for deriving the master frequency an incremental Acting rotary encoder is connected, the output to the input of an integrator for generating digital Angle of rotation values is connected. That of the incremental acting electrical encoder are not easy from the digital frequency converter to process. As a result, the integrator is designed to the output values of the rotary encoder in digital To convert angle of rotation values that of digital frequency conversion underlie.
- the device is designed so that the output of the digital Integrators with the input of a multiplier the digital synchronous variable allowing control device connected is.
- the multiplier is used by the control device applied with a ratio multiplier, which influences the digital synchronous variable as desired.
- the device is designed so that the output of the multiplier to an input of the digital frequency converter is connected, whose a control rotating field outgoing outputs are connected to the synchronous motor. With the help of the control rotating field, the synchronous motor controlled proportionally.
- the device In a device for withdrawing flexible long goods, the is formed according to the features described above, it can failures to prevent manufacturing machine failures lead to malfunctions in operation.
- the sensitivity of the synchronous motor against overloads can, however, be exploited to cause serious errors in the processing machine avoid because the synchronous motor tilts and therefore stops before impermissibly large forces come into effect. Consequently it is advantageous to design the device so that for the synchronous motor one of its tilting and / or standstill Monitoring error display or reporting device available is. With the help of the error display or signaling device it is easily possible to operate the required Measures to reinstate normal operations hold true. It is understood that the monitoring device is also capable of any necessary shutdowns to carry out automatically.
- the production machine 11 a rotor braiding machine, a machine frame 28 on which a rotor 29 with e.g. 16 coils rotatably mounted in a manner not shown is.
- the main drive has an output of e.g. 2.2 to 3 kW.
- the rotor 29 With the help of the rotor 29, the flexible Long goods 10 produced, which is deducted from a trigger disk 31 and is wound up.
- the trigger drive 12 To drive the trigger disk 31 is the trigger drive 12, so a motor, the power is 0.37 kW, for example, and the trigger disk e.g. With drives a gear ratio of 1: 150 to 1: 100.
- the main drive 13 is connected using a frequency converter 31 connected to a voltage source 32 is connected. It is a machine leading Control 33 available, which via a frequency converter 31st acts on the main drive 13, e.g. about the schematic shown active connection 34 for switching on or for switching off of the main drive.
- a rotary pulse generator 17 is connected to the main drive 13, which acts incrementally and, in accordance with the speed of the main drive motor 13, emits pulses which form a master frequency f.
- This master frequency is in the 400 kHz range when the rotary pulse generator emits approx. 4000 pulses per revolution and is driven at around 100 revolutions / min.
- the output 18 of the rotary pulse generator 17 is connected to the input 19 of an integrator 20, which outputs digital rotation angle values at its output 21 according to its characteristic.
- This derived synchronous quantity must be influenced, since the motor of the trigger drive 12 should not run at the same number of revolutions as the motor of the main drive 13, but according to the construction of the manufacturing machine and the withdrawal speed of the long goods 10 in a certain ratio to this, which is determined by * K 1 / K 2 is determined.
- K 2 is a constant factor which is determined by the construction of the production machine 11 or the trigger drive 12, while K 1 is a factor which is designed differently in accordance with the construction of the long goods 10.
- the output 24 of the multiplier 23 is at an input 25 of a digital frequency converter 16 connected.
- This converter 16 has outputs which produce a control rotating field 26, which are connected to the synchronous motor 15.
- Of the digital frequency converter 16 thus converts the digital angle of rotation size digitally into a control variable for the synchronous motor 15 ⁇ m.
- the frequency converter 16 is a three phase complete digitally executed pulse frequency converter, which the Realignment of the digital, according to the desired ratio transformed digitally synchronous size and thus without influencing e.g. Temperature and voltage fluctuations, so that 15 rotating fields are fed to the synchronous motor, the one of the master frequency f proportionate exact Allow control of the synchronous motor 15, that is, without the Synchronous motor 15 should be regulated. This engine works so controlled.
- the synchronous motor 15 To control the synchronous motor 15 and thus one proper operation of the trigger device in all operating conditions to ensure the manufacturing machine 11, the synchronous motor must be designed accordingly. He must for example with regard to the torque to be output by it be designed so that this does not exceed its rated power at normal operation or at the maximum possible master frequencies f corresponds. Furthermore, the maximum Guide frequencies to the intended maximum The speed of the synchronous motor 15 can be tuned to one to enable proper synchronous operation, in which case the maximum speed of the synchronous motor 15 to avoid one Exemption may not be exceeded.
Landscapes
- Engineering & Computer Science (AREA)
- Textile Engineering (AREA)
- Control Of Ac Motors In General (AREA)
- Control Of Electric Motors In General (AREA)
- Extrusion Moulding Of Plastics Or The Like (AREA)
- Braiding, Manufacturing Of Bobbin-Net Or Lace, And Manufacturing Of Nets By Knotting (AREA)
- Control Of Multiple Motors (AREA)
Description
- Fig.1
- eine Seitenansicht einer Flechtmaschine in schematischer Darstellung, und
- Fig.2
- ein Blockschaltbild zur Erläuterung der wichtigsten Funktionen des Aufbaus einer erfindungsgemäßen Maschine und deren Funktionen.
Claims (7)
- Vorrichtung zum Abzug flexiblen Langguts (10) aus einer Herstellungsmaschine (11), insbesondere einer Flecht-, Rundstrick- od.dgl. Maschine, die einen Abzugsantrieb (12) hat, dessen Drehzahl entsprechend einer von einem Hauptantrieb (13) der Herstellungsmaschine (11) abgeleiteten Leitfrequenz (f) beeinflußbar ist, wobei eine die Leitfrequenz (f) oder eine davon abgeleitete Synchrongröße abzuändern gestattende Steuereinrichtung (14) vorhanden ist, dadurch gekennzeichnet, daß der Abzugsantrieb (12) ein Synchronmotor (15) ist, dessen Drehzahl entsprechend der vom Hauptantrieb (13) abgeleiteten Leitfrequenz (f) über einen digitalen Frequenzumrichter (16) gesteuert ist.
- Vorrichtung nach Anspruch 1, dadurch gekennzeichnet, daß das für den bestimmungsgemäßen Abzugbetrieb maximal erforderliche Abgabedrehmoment des Synchronmotors (15) kleiner ist, als es der Nennleistung des Synchronmotors (15) bei bestimmungsgemäßen Leitfrequenzen (f) entspricht.
- Vorrichtung nach Anspruch 1 oder 2, dadurch gekennzeichnet, daß die maximale Leitfrequenz (f) auf die bestimmungsgemäß maximale Drehzahl des Synchronmotors (15) im Sinne eines ordnungsgemäßen Synchronantriebs abgestimmt ist.
- Vorrichtung nach Anspruch 1 bis 3, dadurch gekennzeichnet, daß an den Hauptantrieb (13) zur Ableitung der Leitfrequenz (f) ein inkremental wirkender Drehimpulsgeber (17) angeschlossen ist, dessen Ausgang (18) an den Eingang (19) eines Integrators (20) zur Erzeugung digitaler Drehwinkelwerte angeschlossen ist.
- Vorrichtung nach einem oder mehreren der Ansprüche 1 bis 4, dadurch gekennzeichnet, daß der Ausgang (21) des digitalen Integrators (20) mit dem Eingang (22) eines Multiplikators (23) der die digitale Synchrongröße abzuändern gestattenden Steuereinrichtung (14) verbunden ist.
- Vorrichtung nach einem oder mehreren der Ansprüche 1 bis 5, dadurch gekennzeichnet, daß der Ausgang (24) des Multiplizierers (23) an einen Eingang (25) des digitalen Frequenzumrichters (16) angeschlossen ist, dessen ein Steuerdrehfeld abgehende Ausgänge (26) mit dem Synchronmotor (15) in Verbindung stehen.
- Vorrichtung nach einem oder mehreren der Ansprüche 1 bis 6, dadurch gekennzeichnet, daß für den Synchronmotor (15) eine dessen Kippen und/oder Stillstand überwachende Fehleranzeige- oder Meldeeinrichtung (27) vorhanden ist.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE9319096U DE9319096U1 (de) | 1993-12-13 | 1993-12-13 | Vorrichtung zum Abzug flexiblen Langguts aus einer Herstellungsmaschine |
| DE9319096U | 1993-12-13 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| EP0657570A1 EP0657570A1 (de) | 1995-06-14 |
| EP0657570B1 true EP0657570B1 (de) | 1998-01-28 |
Family
ID=6901907
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP94116882A Expired - Lifetime EP0657570B1 (de) | 1993-12-13 | 1994-10-26 | Vorrichtung zum Abzug flexiblen Langguts aus einer Herstellungsmaschine |
Country Status (4)
| Country | Link |
|---|---|
| US (1) | US5566604A (de) |
| EP (1) | EP0657570B1 (de) |
| DE (2) | DE9319096U1 (de) |
| ES (1) | ES2115132T3 (de) |
Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO1996042091A1 (fr) * | 1993-11-29 | 1996-12-27 | Yves Michnik | Dispositif de commande de tressage |
| US6360644B1 (en) * | 2000-03-31 | 2002-03-26 | American Metric Corporation | Braiding machine |
| JP2010285700A (ja) * | 2009-06-09 | 2010-12-24 | Precision Fukuhara Works Ltd | 丸編機の巻取制御方法および巻取制御装置 |
| JP2013019082A (ja) * | 2011-07-13 | 2013-01-31 | Precision Fukuhara Works Ltd | 電子柄編機の巻取制御方法および装置 |
| JP2014095157A (ja) * | 2012-11-07 | 2014-05-22 | Precision Fukuhara Works Ltd | 丸編機の巻取制御方法および装置 |
| CN110055677B (zh) * | 2019-05-18 | 2024-01-30 | 徐州恒辉编织机械有限公司 | 一种编织机主机和收线同步控制装置 |
Family Cites Families (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| BE789764A (fr) * | 1971-10-07 | 1973-02-01 | Hamel Ag | Dispositif a filer ou a retordre et son procede d'utilisation |
| DE2535457C3 (de) * | 1975-08-08 | 1978-03-23 | Barmag Barmer Maschinenfabrik Ag, 5630 Remscheid | Aufspulmaschine |
| DE2811123C2 (de) * | 1978-03-15 | 1983-09-29 | Barmag Barmer Maschinenfabrik Ag, 5630 Remscheid | Verfahren zum Anfahren und Hochfahren eines Synchronmotors auf Betriebsdrehzahl mit Hilfe eines Umrichters |
| US4266461A (en) * | 1979-07-05 | 1981-05-12 | Karg Corporation | Tandem braiding system and components thereof |
| DE3111113C2 (de) * | 1981-03-20 | 1986-01-23 | Karl Mayer Textil-Maschinen-Fabrik Gmbh, 6053 Obertshausen | Regelvorrichtung für den Motor einer das Gewirk beeinflussenden Wickelvorrichtung, wie Teilkettbaum, bei einer Kettenwirkmaschine |
| DD218783A3 (de) * | 1982-07-23 | 1985-02-13 | Strickmaschinenbau Kmst Veb | Steuereinrichtung fuer eine warenabzugsvorrichtung an strickmaschinen, insbesondre rundstrickmaschinen |
| DE3304546C2 (de) * | 1983-02-10 | 1985-04-04 | H. Stoll Gmbh & Co, 7410 Reutlingen | Warenabzugseinrichtung für Strickmaschinen |
| JPS60181349A (ja) * | 1984-02-24 | 1985-09-17 | 津田駒工業株式会社 | 織機の巻取り制御装置 |
| US4922798A (en) * | 1988-05-09 | 1990-05-08 | Airfoil Textron Inc. | Apparatus and method for braiding fiber strands |
| IL90789A0 (en) * | 1988-08-05 | 1990-01-18 | Rieter Ag Maschf | Textile machine with drawframes |
| JPH03227436A (ja) * | 1990-02-01 | 1991-10-08 | Fukuhara Seiki Seisakusho:Kk | 丸編機の巻取部における駆動装置 |
| IT1243480B (it) * | 1990-08-02 | 1994-06-15 | Carlo Menegatto | Apparecchiatura di controllo per spiralatrici |
| US5398586A (en) * | 1990-08-25 | 1995-03-21 | Murata Kikai Kabushiki Kaisha | Braided structure forming method |
| US5417138A (en) * | 1993-11-10 | 1995-05-23 | The B.F. Goodrich Company | Curved braid apparatus |
-
1993
- 1993-12-13 DE DE9319096U patent/DE9319096U1/de not_active Expired - Lifetime
-
1994
- 1994-10-26 ES ES94116882T patent/ES2115132T3/es not_active Expired - Lifetime
- 1994-10-26 DE DE59405174T patent/DE59405174D1/de not_active Expired - Fee Related
- 1994-10-26 EP EP94116882A patent/EP0657570B1/de not_active Expired - Lifetime
- 1994-11-30 US US08/347,655 patent/US5566604A/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| ES2115132T3 (es) | 1998-06-16 |
| EP0657570A1 (de) | 1995-06-14 |
| DE9319096U1 (de) | 1995-04-13 |
| DE59405174D1 (de) | 1998-03-05 |
| US5566604A (en) | 1996-10-22 |
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