EP0867543B1 - Verfahren und Vorrichtung zur Steuerung und Überwachung der Schneidfunktion einer elektromotorisch angetriebenen Fadenschere in Webmaschinen - Google Patents
Verfahren und Vorrichtung zur Steuerung und Überwachung der Schneidfunktion einer elektromotorisch angetriebenen Fadenschere in Webmaschinen Download PDFInfo
- Publication number
- EP0867543B1 EP0867543B1 EP98103545A EP98103545A EP0867543B1 EP 0867543 B1 EP0867543 B1 EP 0867543B1 EP 98103545 A EP98103545 A EP 98103545A EP 98103545 A EP98103545 A EP 98103545A EP 0867543 B1 EP0867543 B1 EP 0867543B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- scissors
- motor
- motor shaft
- loom
- shaft
- 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
- 238000000034 method Methods 0.000 title claims description 16
- 238000009941 weaving Methods 0.000 claims abstract description 22
- 238000005520 cutting process Methods 0.000 claims description 16
- 238000012544 monitoring process Methods 0.000 claims description 6
- 230000001419 dependent effect Effects 0.000 claims 1
- 230000000694 effects Effects 0.000 claims 1
- 230000006870 function Effects 0.000 description 6
- 239000004744 fabric Substances 0.000 description 4
- 238000012806 monitoring device Methods 0.000 description 4
- BGPVFRJUHWVFKM-UHFFFAOYSA-N N1=C2C=CC=CC2=[N+]([O-])C1(CC1)CCC21N=C1C=CC=CC1=[N+]2[O-] Chemical compound N1=C2C=CC=CC2=[N+]([O-])C1(CC1)CCC21N=C1C=CC=CC1=[N+]2[O-] BGPVFRJUHWVFKM-UHFFFAOYSA-N 0.000 description 2
- 230000007547 defect Effects 0.000 description 2
- 238000003780 insertion Methods 0.000 description 2
- 230000037431 insertion Effects 0.000 description 2
- 230000001133 acceleration Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000011156 evaluation Methods 0.000 description 1
- 230000001939 inductive effect Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 230000007659 motor function Effects 0.000 description 1
- 230000003287 optical effect Effects 0.000 description 1
- 230000033764 rhythmic process Effects 0.000 description 1
Images
Classifications
-
- D—TEXTILES; PAPER
- D03—WEAVING
- D03D—WOVEN FABRICS; METHODS OF WEAVING; LOOMS
- D03D51/00—Driving, starting, or stopping arrangements; Automatic stop motions
- D03D51/18—Automatic stop motions
- D03D51/44—Automatic stop motions acting on defective operation of loom mechanisms
-
- D—TEXTILES; PAPER
- D03—WEAVING
- D03D—WOVEN FABRICS; METHODS OF WEAVING; LOOMS
- D03D49/00—Details or constructional features not specially adapted for looms of a particular type
- D03D49/70—Devices for cutting weft threads
Definitions
- the invention relates to a method for controlling and monitoring the cutting function of a electric motor driven thread scissors in weaving machines according to the generic term of Claims 1 and 10.
- a much more flexible thread scissors for weft threads is known from EP 0 284 766 B1, which is considered to be the closest prior art.
- This thread scissors has a drive independent of the main drive, so that the time the cutting process in relation to the weaving cycle by means of a programmable control can be specified arbitrarily.
- the drive consists of a stepper motor on its Shaft the movable cutting edge is attached, the motor shaft of the stepper motor alternately driven forward and backward.
- the object of the invention is to provide a method for controlling and monitoring the cutting function of an electric motor-operated thread scissors and a thread scissors, in particular for separating catch strips, which allows great flexibility in the execution of the cutting function, as well as in a wide variety of mechanical conditions and can be used in a wide variety of local locations. Another task is to increase the lifespan of the scissors drive and to monitor the function and damage of the thread scissors.
- the invention is based on the technical teaching of the claim 1 and of claim 10.
- the engine speed and thus the cutting cycle and cutting time is one electronic control controlled and monitored, which is advantageous in the machine control is integrated and can be programmed via the operator terminal.
- the rotation of the motor shaft is monitored by a monitoring device in the form of a sensor supervised.
- a magnetic one is preferred due to the ambient conditions Sensor (Hall sensor) used.
- Sensor Hall sensor
- optical, capacitive, inductive or other transducers can be used if the special application requires it. Can be advantageous through this type of monitoring both defects of the drive motor and breakage or Jamming of the movable scissor part of the thread scissors are detected.
- the speed of the motor shaft of the Scissor motor in an arbitrarily adjustable ratio to the speed of the main shaft of the Weaving machine drive can be operated. That means that with a fabric with relative high weft density the thread scissors cut, for example, in a ratio of 1: 5 to the weft insertion, that is, after every fifth weft insertion, a single cutting operation for several weft threads takes place, which are tied in the fabric and a catch strip. So there are the weft threads cut the last 5 weft entries between the fabric and the catch bar.
- the thread scissors according to the invention are particularly suitable for cutting off catch strips, because the predeterminable speed ratio of the scissors drive to the main shaft drive Weaving machine advantageously several weft threads already registered with one single cutting process can be cut.
- the thread scissors can as well as a so-called center separating device for separating a fabric web against the Weaving direction can be used, or to separate each individual entered Weft.
- the drive 10 of the thread scissors with a control electronics 2 and the signal-transmitting connection 5,6 to the weaving machine control 1 is shown.
- the drive comprises an electric motor 10, which is preferably designed as a stepper motor, and one Control electronics 2 for controlling the motor functions.
- the control electronics 2 are connected to the weaving machine control system 1 via a signal line 5 connected and receives from this control information for controlling the motor, e.g. Speed, direction of rotation, synchronization signals etc.
- the speed of the motor 10 pre-programmed in the loom control 1 Safety edge scissors 7 are monitored by a monitoring device 3, 4 which is operated via a Signal line 3a is connected to the control electronics 2, which in turn with the Loom control 1 is connected via the signal line 6.
- a control loop is created that allows reliable monitoring of the function of the motor of the thread scissors.
- the device 3 is preferably designed as a magnetic pickup. This is on the Motor shaft 11 of the motor 10 or the device 4 on a part firmly connected to it arranged, which is a permanent magnet, the with each full rotation of the motor shaft 11 Transducer 3 passes and a signal from the control electronics 2 is detected, which is via the Signal line 6 of the weaving machine control 1 is fed.
- the Thread scissors 7 consists of a fixed scissor part 8 and a movable Scissor part 9.
- the motor 10 On the fixed scissor part 8, the motor 10 is arranged, which on it Motor shaft 11 carries a drive plate 12. The motor shaft 11 rotates in a direction 15 at specifiable speed.
- the movable scissor part 9 is arranged such that it can pivot about the scissor axis 8a with respect to the fixed scissor part 8 and comprises an elongated hole 14 in the end opposite the cutting edge, in which a driving pin 13 engages.
- the driving pin 13 is fixed in the edge region of the driving plate 12. Due to the eccentric arrangement of the driving pin 13 with respect to the motor shaft 11, the rotational movement of the motor shaft 11 is converted into a cutting movement of the movable scissor part 9 in a direction of the double arrow 16. A full rotation of the motor shaft 11 of the motor 10 corresponds to a cutting cycle of the thread scissors 7.
- the monitoring device 3, 4 is arranged on the motor 10 and comprises a permanent magnet 4, which is arranged, for example, on the drive plate 12 and which passes a fixed magnetic transducer 3, for example a Hall sensor, with each revolution of the shaft 11 of the motor.
- the Hall sensor emits an electrical signal to the control electronics 2 each time the motor shaft 11 is rotated. If for some reason the rotation of the motor comes to a standstill or unpredictable irregularities occur, this is recognized by the control electronics 2 and sends an error signal to the weaving machine control system 1. An error routine is then initiated and, if necessary, the weaving process is stopped.
- An electric motor drive a thread scissors the motor shaft according to the state of the Technology alternating forwards and backwards, i.e. performing a partial rotation, can also are monitored according to the invention.
- Such thread scissors are used as weft scissors Use.
- the ratio of Partial rotation of the motor shaft of the scissor motor to the speed of the main shaft of the Loom drive does not matter.
Landscapes
- Engineering & Computer Science (AREA)
- Textile Engineering (AREA)
- Looms (AREA)
Description
Eine weitere Aufgabe besteht darin, die Lebensdauer des Scherenantriebes zu erhöhen und eine Überwachung auf Funktion und Beschädigung der Fadenschere vorzusehen.
Durch die in Bezug auf die Motorwelle 11 exzentrische Anordnung des Mitnehmerstiftes 13 wird die Rotationsbewegung der Motorwelle 11 in eine Schneidbewegung des beweglichen Scherenteils 9 in eine Richtung des Doppelpfeiles 16 umgesetzt.
Dabei entspricht eine Volldrehung der Motorwelle 11 des Motors 10 einem Schneidzyklus der Fadenschere 7.
Kommt aus irgendeinem Grund die Rotation des Motors zum Stillstand oder es treten nicht vorhersehbare Unregelmäßigkeiten auf, so erkennt dies die Ansteuerelektronik 2 und gibt ein Fehlersignal an die Webmaschinensteuerung 1. Daraufhin wird eine Fehlerroutine initiiert und, falls erforderlich, der Webprozeß gestoppt.
- 1
- Webmaschinensteuerung
- 2
- Antriebsvorrichtung
- 3
- Aufnehmer (Sensor)
- 3a
- Signalleitung
- 4
- Permanentmagnet
- 5
- Signalleitung
- 6
- Signalleitung
- 7
- Fadenschere
- 8
- feststehendes Scherenteil
- 8a
- Scherenachse
- 9
- bewegliches Scherenteil
- 10
- Motor
- 11
- Motorwelle
- 12
- Mitnehmerscheibe
- 13
- Mitnehmerstift
- 14
- Langloch
- 15
- Rotationsrichtung
- 16
- Doppelpfeil
Claims (12)
- Verfahren zur Steuerung und Überwachung der Schneidfunktion einer elektromotorisch angetriebenen Fadenschere in Webmaschinen, mit einer drehangetriebenen Hauptwelle, wobei der Scherenantrieb ein elektrischer Antriebsmotor mit einer programmierbaren Ansteuerelektronik ist, die signalübertragend mit einer Webmaschinensteuerung in Verbindung steht, dadurch gekennzeichnet,daß beim Drehen der Motorwelle des Antriebsmotors wenigstens ein elektrisches Signal erzeugt wird,daß das elektrische Signal über die Ansteuerelektronik der Webmaschinensteuerung mitgeteilt wird unddaß bei Ausbleiben des Signals der Webprozeß unterbrochen wird.
- Verfahren nach Anspruch 1, dadurch gekennzeichnet, daß das Drehen der Motorwelle in einer Teil- oder Volldrehung besteht.
- Verfahren nach Anspruch 2, dadurch gekennzeichnet, daß jede Teil- oder Volldrehung der Motorwelle ein elektrisches Signal erzeugt.
- Verfahren nach Anspruch 2, dadurch gekennzeichnet, daß die Anzahl der Volldrehungen pro Zeiteinheit der Motorwelle in einem bestimmten Verhältnis zur Drehzahl pro Zeiteinheit der Webmaschinenhauptwelle steht.
- Verfahren nach Anspruch 1, dadurch gekennzeichnet, daß die Drehung der Motorwelle des Antriebsmotors nach jedem elektrischen Signal aufrechterhalten wird.
- Verfahren nach Anspruch 4, dadurch gekennzeichnet, daß das Verhältnis Drehzahl der Motorwelle des Antriebsmotors zur Drehzahl der Webmaschinenhauptwelle manuell der Webmaschinensteuerung vorgebbar ist.
- Verfahren nach Anspruch 4, dadurch gekennzeichnet, daß das Verhältnis Drehzahl der Motorwelle des Antriebsmotors zur Drehzahl der Webmaschinenhauptwelle automatisch musterabhängig von der Webmaschinensteuerung vorgegeben wird.
- Verfahren nach Anspruch 1, dadurch gekennzeichnet, daß die Fadenschere eine Schußfadenschere ist.
- Verfahren nach Anspruch 1, dadurch gekennzeichnet, daß die Fadenschere eine Fangleistenschere ist.
- Elektromotorisch angetriebene Fadenschere, insbesondere zur Verwendung als Fangleistenschere in Webmaschinen, mit einem feststehenden Scherenteil (8) und einem beweglichen Scherenteil (9), das um eine Scherenachse (8a) eine von einem Elektromotor (10) ausgehende Schneidbewegung (16) ausführt, wobei der Elektromotor (10) eine programmierbare Ansteuerelektronik (2) besitzt, die signalübertragend mit einer Webmaschinensteuerung (1) in Verbindung steht, dadurch gekennzeichnet, daß die Motorwelle (11) des Elektromotors (10) oder wenigstens eine auf der Motorwelle (11) vorhandene Vorkehrung (12) eine erste Einrichtung (4) besitzt und daß außerhalb des Rotationsbereiches der Motorwelle (11) eine zweite Einrichtung (3) vorhanden ist, und wobei beide Einrichtungen (3,4) die Drehbewegung der Motorwelle (11) überwachen.
- Elektromotorisch angetriebene Fadenschere nach Anspruch 10, dadurch gekennzeichnet, daß die Einrichtung (3) der Empfänger einer physikalischen Größe und zugleich Sender einer elektrischen Größe ist und die Einrichtung (4) der Sender der physikalischen Größe ist.
- Elektromotorisch angetriebene Fadenschere nach Anspruch 11, dadurch gekennzeichnet, daß die Einrichtung (3) signalübertragend über die Ansteuerelektronik (2) mit der Webmaschinensteuerung (1) in Verbindung steht.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19713089 | 1997-03-27 | ||
DE19713089A DE19713089C2 (de) | 1997-03-27 | 1997-03-27 | Verfahren und Vorrichtung zur Steuerung und Überwachung der Schneidfunktion einer elektromotorisch angetriebenen Fadenschere in Webmaschinen |
Publications (3)
Publication Number | Publication Date |
---|---|
EP0867543A2 EP0867543A2 (de) | 1998-09-30 |
EP0867543A3 EP0867543A3 (de) | 1999-12-15 |
EP0867543B1 true EP0867543B1 (de) | 2001-06-20 |
Family
ID=7824923
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP98103545A Expired - Lifetime EP0867543B1 (de) | 1997-03-27 | 1998-02-28 | Verfahren und Vorrichtung zur Steuerung und Überwachung der Schneidfunktion einer elektromotorisch angetriebenen Fadenschere in Webmaschinen |
Country Status (5)
Country | Link |
---|---|
US (1) | US6301519B1 (de) |
EP (1) | EP0867543B1 (de) |
JP (1) | JP3004624B2 (de) |
AT (1) | ATE202389T1 (de) |
DE (2) | DE19713089C2 (de) |
Families Citing this family (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP3652447B2 (ja) * | 1996-07-24 | 2005-05-25 | 株式会社ルネサステクノロジ | ツリー回路 |
DE19954139A1 (de) * | 1999-11-11 | 2001-06-07 | Dornier Gmbh Lindauer | Verfahren und Vorrichtung zur Überwachung des Abziehens von Fangleisten auf Webmaschinen |
DE10014366A1 (de) * | 2000-03-20 | 2001-10-04 | Dornier Gmbh Lindauer | Fadenschneidvorrichtung für Webmaschinen |
DE10224079B3 (de) * | 2002-05-31 | 2004-03-25 | Lindauer Dornier Gmbh | Verfahren und Vorrichtung zum aufeinander folgenden Eintragen von Schussfäden in das Webfach einer Webmaschine |
JP2004244764A (ja) * | 2003-02-14 | 2004-09-02 | Tsudakoma Corp | 断片織機の捨耳カッター駆動方法 |
ITMI20031464A1 (it) * | 2003-07-17 | 2005-01-18 | Promatech Spa | Dispositivo a comando elettrico per il taglio programmabile |
DE502006007250D1 (de) * | 2005-02-23 | 2010-08-05 | Itema Switzerland Ltd | Leistenleger für Schussfäden |
US8191399B2 (en) | 2005-12-16 | 2012-06-05 | Siemens Aktiengesellschaft | Monitoring device and monitoring method for a drive device |
FR2957834B1 (fr) * | 2010-03-24 | 2012-03-09 | Infaco | Dispositif de controle positionnel de deux elements l'un par rapport a l'autre tel que lames d'outils de coupe du genre secateur et outil de coupe le comportant |
CN104131396A (zh) * | 2014-08-14 | 2014-11-05 | 山东日发纺织机械有限公司 | 喷气织机剪纬用电子剪刀直驱装置 |
Family Cites Families (21)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3570550A (en) * | 1968-10-17 | 1971-03-16 | North American Rockwell | Control system for looms |
US3732896A (en) * | 1971-04-26 | 1973-05-15 | Vyzk Ustav Bavlnarsky | Method of and apparatus for filling the shuttles with weft in progressive shed weaving looms |
CS165124B1 (de) * | 1973-04-18 | 1975-11-28 | ||
CH579165A5 (de) * | 1974-06-28 | 1976-08-31 | Rueti Ag Maschf | |
US4159558A (en) * | 1974-12-24 | 1979-07-03 | Cotonificio Cantoni S.P.A. | Apparatus for the cutting of columns of thread loops |
US4158373A (en) * | 1976-09-20 | 1979-06-19 | Tsentralny Nauchno-Issledovatelsky Institut Khlopchatobumazhnoi Promyshlennosti | Method of and apparatus for threading the weft thread carriers in travelling-wave looms |
JPS5593849A (en) * | 1978-12-30 | 1980-07-16 | Toyoda Automatic Loom Works | Timing setting method and apparatus in loom |
US4480665A (en) * | 1981-01-21 | 1984-11-06 | Nissan Motor Company, Limited | Weft-bar (set mark) prevention system for a loom |
US4546802A (en) * | 1984-06-04 | 1985-10-15 | Burlington Industries, Inc. | Automatic failure sensor for hot wire cutters |
DE3684286D1 (de) * | 1985-12-13 | 1992-04-16 | Tsudakoma Ind Co Ltd | Schussfadenzubringer fuer webmaschinen. |
BE1000369A4 (nl) * | 1987-03-09 | 1988-11-08 | Picanol Nv | Werkwijze voor het bevelen van een snijinrichting voor inslagdraden bij weefmachines en snijinrichting hiertoe aangewend. |
US4850399A (en) * | 1987-06-27 | 1989-07-25 | Lindauer Dorner Gesellschaft M.B.H. | Weaving loom with pneumatic weft thread injection |
BE1000995A4 (nl) * | 1987-10-12 | 1989-05-30 | Wiele Michel Van De Nv | Inrichting voor het regelen van de beet in de snijinrichting van dubbelstukweefmachines. |
JP2668579B2 (ja) * | 1989-04-19 | 1997-10-27 | 津田駒工業株式会社 | 給糸カッターの駆動装置 |
IT1236993B (it) * | 1989-12-29 | 1993-05-12 | Roy Electrotex Spa | Alimentatore di trama per telai di tessitura a pinze e a proiettili |
DE4000856A1 (de) * | 1990-01-13 | 1991-07-18 | Dornier Gmbh Lindauer | Schussseitig angeordnete fadenschneidevorrichtung einer luftwebmaschine |
IT1242989B (it) * | 1990-08-29 | 1994-05-23 | Vamatex Spa | Dispositivo perfezionato per la formazione della cimossa in telai senza navette |
US5329962A (en) * | 1991-09-03 | 1994-07-19 | Nissan Motor Co., Ltd. | Weft supply changing and threading apparatus |
IT1273168B (it) * | 1994-04-29 | 1997-07-07 | Panter Srl | Dispositivo di taglio di trama per una macchina per tessere |
JP2668669B2 (ja) * | 1995-11-17 | 1997-10-27 | 津田駒工業株式会社 | 給糸カッターの駆動装置 |
US5735315A (en) * | 1996-09-11 | 1998-04-07 | A.E. Petsche Company, Inc. | Wire loom dobby |
-
1997
- 1997-03-27 DE DE19713089A patent/DE19713089C2/de not_active Expired - Fee Related
-
1998
- 1998-02-28 DE DE59800877T patent/DE59800877D1/de not_active Expired - Lifetime
- 1998-02-28 AT AT98103545T patent/ATE202389T1/de not_active IP Right Cessation
- 1998-02-28 EP EP98103545A patent/EP0867543B1/de not_active Expired - Lifetime
- 1998-03-25 US US09/047,473 patent/US6301519B1/en not_active Expired - Lifetime
- 1998-03-26 JP JP10079036A patent/JP3004624B2/ja not_active Expired - Lifetime
Also Published As
Publication number | Publication date |
---|---|
DE19713089A1 (de) | 1998-10-01 |
DE59800877D1 (de) | 2001-07-26 |
JP3004624B2 (ja) | 2000-01-31 |
US6301519B1 (en) | 2001-10-09 |
EP0867543A2 (de) | 1998-09-30 |
ATE202389T1 (de) | 2001-07-15 |
EP0867543A3 (de) | 1999-12-15 |
JPH10298852A (ja) | 1998-11-10 |
DE19713089C2 (de) | 2000-07-27 |
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