EP0374398B1 - Weft stop motion for air looms - Google Patents
Weft stop motion for air looms Download PDFInfo
- Publication number
- EP0374398B1 EP0374398B1 EP89118949A EP89118949A EP0374398B1 EP 0374398 B1 EP0374398 B1 EP 0374398B1 EP 89118949 A EP89118949 A EP 89118949A EP 89118949 A EP89118949 A EP 89118949A EP 0374398 B1 EP0374398 B1 EP 0374398B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- amplifier
- stop motion
- weft
- weft stop
- yarns
- 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
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Classifications
-
- D—TEXTILES; PAPER
- D03—WEAVING
- D03D—WOVEN FABRICS; METHODS OF WEAVING; LOOMS
- D03D47/00—Looms in which bulk supply of weft does not pass through shed, e.g. shuttleless looms, gripper shuttle looms, dummy shuttle looms
- D03D47/28—Looms in which bulk supply of weft does not pass through shed, e.g. shuttleless looms, gripper shuttle looms, dummy shuttle looms wherein the weft itself is projected into the shed
- D03D47/30—Looms in which bulk supply of weft does not pass through shed, e.g. shuttleless looms, gripper shuttle looms, dummy shuttle looms wherein the weft itself is projected into the shed by gas jet
- D03D47/3066—Control or handling of the weft at or after arrival
- D03D47/3073—Detection means therefor
-
- 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
- D03D51/34—Weft stop motions
Definitions
- the invention relates to a weft monitor for air weaving machines with a weft insertion of yarns of different quality according to the preamble of claim 1.
- a weft monitor according to essential parts of the preamble of claim 1 is already known.
- the known weft monitor relates to an amplifier circuit, a series transistor being arranged at the output of the amplifier and emitting an output signal with loop feedback.
- a special light barrier to be formed which also feeds signals of yarn fluff in reaction to the thread storage input.
- it is disadvantageous in that only the arrival of a thread on the catch side is uncovered, without provision being made to act on the thread store in a regulating manner. In the known arrangement, therefore, yarns of particularly fine, lint-like quality cannot be processed in retrospect on the thread store.
- the present invention is therefore based on the object of developing a weft monitor of the type mentioned in such a way that an identical output signal of the weft monitor is achieved independently of the mechanical properties of the yarn.
- the task is designed so that different yarns are recognized by the weft monitor and the thread storage is regulated in retrospect.
- a monitoring correction signal which contains the mechanical properties of the yarn is fed to the output signal of the weft monitor.
- the core of the present invention is therefore a fully automatically programmable reinforcement of the weft monitor, with the aim of always achieving a constant output signal from the weft monitor, regardless of the mechanical properties of the yarn.
- the weft monitor would be adjusted with an electrical output signal so that it reaches a certain output level.
- weft monitors with amplifier are arranged in series, the output signal of which is readjusted depending on the yarn properties.
- Such a series connection of several weft monitors is known per se. The purpose of this series connection is to detect so-called outgoing threads, namely when the thread has been withdrawn from an empty thread store or when there is a thread break. If the second weft monitor, which is arranged behind the first weft monitor on the catch side, detects this thread, this ensures that it is a faulty thread, e.g. Weft break, thread running out or the like.
- this second weft monitor or several more are now adjusted in their output signal as a function of the yarn properties, so that an increased accuracy in the thread monitoring is achieved in this way.
- weft monitors such as optical weft monitors which operate in transmitted light or in reflected light.
- Capacitive or inductive weft monitors are also possible.
- Laser light or infrared light or other light sources can be used as the light source for an optical weft monitor.
- the amplifier of the weft monitor is connected to the air entry control via signal lines and is further controlled electrically by the air entry control via an additional line relating to the yarn properties.
- the weft thread monitor amplifier is advantageously designed as an automatically programmable amplifier, depending on the mechanical and air-active properties of the yarns.
- the weft monitor's amplifier advantageously always delivers a constant output signal to the air intake control, regardless of the mechanical properties of the yarns.
- the digital processing of the mechanical properties of the yarns can also be carried out in the amplifier itself instead of in the air intake control.
- a weaving machine has a profile reed 1, in which an air duct 2 is arranged.
- 3 to 6 yarns 7 to 10 are introduced in succession via a plurality of main nozzles, depending on the fabric pattern.
- the yarns 7 to 10 are drawn off from thread stores 11 to 14.
- Signal lines 15-18 lead from an air entry control 19 to the individual thread stores 11 to 14.
- the respective thread store is released in accordance with the pattern to be weaved, so that the thread 7-10 currently being processed which has been drawn off from the respective thread store is released is entered into the air duct 2 by means of the main nozzle 3-6.
- the air intake controller 19 also controls the electrical control valves arranged in the main nozzles 3-6 via signal lines 20 in order to release the air (not shown in more detail) to the main nozzles 3-6.
- the relay nozzles 22 are controlled by the air intake control 19 via further signal lines 21.
- a weft monitor 23 is arranged on the catch side.
- the weft monitor 23 consists of a light source 24 and a receiving element 25.
- the elements 24, 25 mentioned are assigned to an amplifier 26 which is connected to the air intake control 19 via signal lines 27 and, on the other hand, is electrically controlled by the air intake control 19 via a line 28.
- a Manual programming or automatic programming is available, which detects the mechanical and air-active properties of the yarns 7-10 and processes them as electrical signals in the air intake control 19. These electrical signals are converted into programming signals which are fed to amplifier 26 via lines 28.
- the amplifier 26 thus has a programmable gain which is controlled as a function of the electrical signal output of the yarn in the weft monitor.
- the aim of the entire programmable amplification is that regardless of the mechanical properties of the yarn in the light barrier between the elements 24 and 25, a constant output signal of the amplifier 26 is always achieved.
- This output signal is communicated to the air intake control 19 via the signal lines 27.
- the digital processing can be carried out in the amplifier 26 itself or in the air intake control 19.
- the core of the present invention is therefore an automatically programmable reinforcement of the weft monitor 23 with the aim of always achieving a constant output signal from the weft monitor, regardless of the mechanical properties of the yarn.
Description
Die Erfindung betrifft einen Schußfadenwächter für Luftwebmaschinen mit einem Schußeintrag von Garnen unterschiedlicher Qualität nach dem Oberbegriff des Patentanspruchs 1.The invention relates to a weft monitor for air weaving machines with a weft insertion of yarns of different quality according to the preamble of claim 1.
Aus der EP-A 0 097 939 ist bereits ein Schußfadenwächter nach wesentlichen Teilen des Oberbegriffs des Patentanspruchs 1 bekannt. Der bekannte Schußfadenwächter bezieht sich auf eine Verstärkerschaltung, wobei am Ausgang des Verstärkers ein Längstransistor angeordnet ist, der mit einer Signalrückführung in Schleifenbildung ein Ausgangssignal abgibt. Hierbei ist es jedoch nicht vorgesehen, daß eine spezielle Lichtschranke ausgebildet ist, die auch Signale von Garnflusen in Rückwirkung an den Fadenspeichereingang zuführt. Bei dem bekannten Schußfadenwächter ist es insoweit nachteilig, als nur die Ankunft eines Fadens an der Fangseite aufgedeckt wird, ohne daß es vorgesehen ist, hierzu in regelnder Betrachtungsweise auf den Fadenspeicher rückwärts gehend einzuwirken. Bei der bekannten Anordnung können deshalb Garne besonders feiner, flusenartiger Qualität nicht in Rückwirkung auf den Fadenspeicher verarbeitet werden.From EP-A 0 097 939 a weft monitor according to essential parts of the preamble of claim 1 is already known. The known weft monitor relates to an amplifier circuit, a series transistor being arranged at the output of the amplifier and emitting an output signal with loop feedback. However, there is no provision here for a special light barrier to be formed which also feeds signals of yarn fluff in reaction to the thread storage input. In the known weft monitor, it is disadvantageous in that only the arrival of a thread on the catch side is uncovered, without provision being made to act on the thread store in a regulating manner. In the known arrangement, therefore, yarns of particularly fine, lint-like quality cannot be processed in retrospect on the thread store.
Der vorliegenden Erfindung liegt deshalb die Aufgabe zugrunde, einen Schußfadenwächter der eingangs genannten Art so weiterzubilden, daß ein gleiches Ausgangssignal des Schußfadenwächters unabhängig von den mechanischen Eigenschaften des Garnes erreicht wird.The present invention is therefore based on the object of developing a weft monitor of the type mentioned in such a way that an identical output signal of the weft monitor is achieved independently of the mechanical properties of the yarn.
Die Aufgabe ist insoweit dahingehend ausgelegt, daß unterschiedliche Garne vom Schußfadenwächter erkannt werden und in Rückwirkung dazu die Fadenspeicher geregelt werden.The task is designed so that different yarns are recognized by the weft monitor and the thread storage is regulated in retrospect.
Zur Lösung der gestellten Aufgabe sind die Merkmale des kennzeichnenden Teils des Patentanspruchs 1 ausgebildet.To achieve the object, the features of the characterizing part of claim 1 are formed.
Demnach wird dem Ausgangssignal des Schußfadenwächters ein überwachendes Korrektursignal zugeführt, welches die mechanischen Eigenschaften des Garnes enthält.Accordingly, a monitoring correction signal which contains the mechanical properties of the yarn is fed to the output signal of the weft monitor.
Kern der vorliegenden Erfindung ist demnach eine völlig automatisch programmierbare Verstärkung des Schußfadenwächters, mit dem Ziel, stets ein konstantes Ausgangssignal des Schußfadenwächters, unabhängig von den mechanischen Eigenschaften des Garnes, zu erreichen.The core of the present invention is therefore a fully automatically programmable reinforcement of the weft monitor, with the aim of always achieving a constant output signal from the weft monitor, regardless of the mechanical properties of the yarn.
Mit der gegebenen technischen Lehre werden wesentliche Vorteile gegenüber bekannten Schußfadenwächtern erreicht.With the given technical teaching, significant advantages over known weft monitors are achieved.
Mit der Erfindung ist es nun erstmals möglich, Flusen bei einem Fadenwechsel des Schußfadens zu erkennen, was mit den bisherigen Schußfadenwächtern nicht möglich war.With the invention it is now possible for the first time to detect fluff when changing the weft thread, which was not possible with the previous weft guard.
Würde nämlich zunächst mit einem relativ feinen Garn gearbeitet, dann würde der Schußfadenwächter mit einem elektrischen Ausgangssignal so nachgeregelt, daß er einen bestimmten Ausgangspegel erreicht.If you were working with a relatively fine yarn, the weft monitor would be adjusted with an electrical output signal so that it reaches a certain output level.
Findet jetzt ein Fadenwechsel statt und wird statt des feinen Garnes ein dickeres Garn verarbeitet, dann wird dies über ein entsprechendes Korrektursignal dem Schußfadenwächter mitgeteilt, und das Ausgangssignal des Schußfadenwächters wird entsprechend vermindert. Jetzt konnte es bei diesem Fadenwechsel vorkommen, daß vor dem einzutragenden, dickeren Garn eine Fluse vorauseilte, die den Schußfadenwächter durchlief, und bei den bisher bekannten Schußfadenwächtern hätte dies zu einem fehlerhaften Ausgangssignal geführt, nämlich zu der Aussage, daß das dickere Garn an der Fangseite angekommen ist.If a thread change now takes place and a thicker thread is processed instead of the fine thread, this is communicated to the weft thread monitor via a corresponding correction signal, and the output signal of the weft thread monitor is reduced accordingly. Now it could happen with this thread change that in front of the thicker thread to be inserted a lint preceded that passed through the weft guard, and this would result in a faulty output signal in the previously known weft guard led, namely to the statement that the thicker yarn has reached the catch side.
Nachdem aber gemäss der Erfindung der Schußfadenwächter entsprechend dem dickeren Garn in seinem Ausgangssignal korrigiert bzw. vermindert wurde, also derart auf eine geringere Empfindlichkeit eingestellt wurde, wird eine evtl. vorauseilende Fluse nicht mehr erkannt, und es wird vielmehr richtig vom Schußfadenwächter festgestellt, daß das dickere Garn noch nicht die Fangseite erreicht hat.However, after the weft monitor has been corrected or reduced in its output signal in accordance with the invention in accordance with the thicker yarn, that is to say has been set to a lower sensitivity in this way, a possibly leading fluff is no longer recognized, and instead the weft monitor correctly detects that this thicker yarn has not yet reached the catch side.
Damit können also Webfehler vermieden werden.Web errors can thus be avoided.
In vorteilhafter Ausgestaltung ist es vorgesehen, daß mehrere Schußfadenwächter mit Verstärker in Serie angeordnet sind, deren Ausgangssignal in Abhängigkeit von den Garneigenschaften nachgeregelt wird. Eine derartige Serienschaltung mehrerer Schußfadenwächter ist ansich bekannt. Zweck dieser Serienschaltung ist, sogenannte auslaufende Fäden zu erkennen, nämlich dann, wenn der Faden aus einem leeren Fadenspeicher abgezogen wurde oder wenn ein Fadenbruch vorliegt. Erfasst der zweite Schußfadenwächter, der hinter dem ersten Schußfadenwächter an der Fangseite angeordnet ist, diesen Faden, dann ist damit sichergestellt, daß es sich um einen fehlerhaften Faden handelt, wie z.B. Schußbruch, ausgelaufender Faden oder dergleichen.In an advantageous embodiment it is provided that several weft monitors with amplifier are arranged in series, the output signal of which is readjusted depending on the yarn properties. Such a series connection of several weft monitors is known per se. The purpose of this series connection is to detect so-called outgoing threads, namely when the thread has been withdrawn from an empty thread store or when there is a thread break. If the second weft monitor, which is arranged behind the first weft monitor on the catch side, detects this thread, this ensures that it is a faulty thread, e.g. Weft break, thread running out or the like.
Erfindungsgemäss wird nun auch dieser zweite Schußfadenwächter oder noch mehrere in ihrem Ausgangssignal in Abhängigkeit von den Garneigenschaften nachgeregelt, so daß derart eine erhöhte Genauigkeit in der Fadenüberwachung erreicht wird.According to the invention, this second weft monitor or several more are now adjusted in their output signal as a function of the yarn properties, so that an increased accuracy in the thread monitoring is achieved in this way.
Als Schußfadenwächter kommen verschiedene physikalische Verfahren in Frage, wie z.B. optische Schußfadenwächter, die im Durchlicht oder im Reflexlicht arbeiten. Ebenso sind kapazitive oder induktive Schußfadenwächter möglich.Various physical methods come into question as weft monitors, such as optical weft monitors which operate in transmitted light or in reflected light. Capacitive or inductive weft monitors are also possible.
Als Lichtquelle für einen optischen Schußfadenwächter kommen Laserlicht oder Infrarotlicht oder andere Lichtquellen in Frage.Laser light or infrared light or other light sources can be used as the light source for an optical weft monitor.
In besonderer Ausgestaltung ist es vorgesehen, daß der Verstärker des Schußfadenwächters über Signalleitungen mit der Lufteintragssteuerung verbunden ist und weiterhin über eine zusätzliche Leitung betreffend die Garneigenschaften elektrisch von der Lufteintragssteuerung angesteuert wird.In a special embodiment it is provided that the amplifier of the weft monitor is connected to the air entry control via signal lines and is further controlled electrically by the air entry control via an additional line relating to the yarn properties.
Vorteilhaft ist hierbei der Verstärker des Schußfadenwächters als automatisch programmierbarer Verstärker, abhängig von den mechanischen und luftwirksamen Eigenschaften der Garne, ausgebildet.The weft thread monitor amplifier is advantageously designed as an automatically programmable amplifier, depending on the mechanical and air-active properties of the yarns.
In besonders vorteilhafter Ausgestaltung ist es vorgesehen, daß an der Lufteintragssteuerung eine Hand oder automatische Programmierung vorgesehen ist, welche die mechanischen und luftwirksamen Eigenschaften der Garn erfasst und als Programmierungssignale über die zusätzliche Leitung dem Verstärker zuführt.In a particularly advantageous embodiment, it is provided that manual or automatic programming is provided on the air entry control, which detects the mechanical and air-active properties of the yarn and feeds it to the amplifier as programming signals via the additional line.
Der Verstärker des Schußfadenwächters führt vorteilhaft stets ein gleichbleibendes Ausgangssignal der Lufteintragssteuerung zu, unabhängig von den mechanischen Eigenschaften der Garne.The weft monitor's amplifier advantageously always delivers a constant output signal to the air intake control, regardless of the mechanical properties of the yarns.
Die digitale Aufbereitung der mechanischen Eigenschaften der Garne kann anstatt in der Lufteintragssteuerung auch im Verstärker selbst vorgenommen werden.The digital processing of the mechanical properties of the yarns can also be carried out in the amplifier itself instead of in the air intake control.
Im folgenden wird die Erfindung anhand einer lediglich einen Ausführungsweg darstellenden Zeichnung näher erläutert. Hierbei gehen aus der Zeichnung und ihrer Beschreibung weitere erfindungswesentliche Merkmale und Vorteile der Erfindung hervor.The invention is explained in more detail below with the aid of a drawing which represents only one embodiment. Here, further features and advantages of the invention that are essential to the invention emerge from the drawing and its description.
Der Erfindungsgegenstand der vorliegenden Erfindung ergibt sich nicht nur aus dem Gegenstand der einzelnen Patentansprüche, sondern auch aus der Kombination der einzelnen Patentansprüche untereinander. Alle in den Unterlagen - einschließlich der Zusammenfassung - offenbarten Angaben und Merkmale, insbesondere die in der Zeichnung dargestellte räumliche Ausbildung werden als erfindungswesentlich beansprucht, soweit sie einzeln oder in Kombination gegenüber dem Stand der Technik neu sind.The subject matter of the present invention results not only from the subject matter of the individual claims, but also from the combination of the individual claims. All information and features disclosed in the documents - including the summary -, in particular the spatial design shown in the drawing, are claimed to be essential to the invention, insofar as they are new compared to the prior art, individually or in combination.
Eine Webmaschine weist nach der Zeichnung ein Profilriet 1 auf, in dem ein Luftkanal 2 angeordnet ist. In den Luftkanal 2 werden über mehrere Hauptdüsen 3 bis 6 Garne 7 bis 10 je nach Gewebemuster nacheinanderfolgend eingetragen. Die Garne 7 bis 10 werden von Fadenspeichern 11 bis 14 abgezogen. Von einer Lufteintragssteuerung 19 führen Signalleitungen 15-18 zu den einzelnen Fadenspeichern 11 bis 14. Über diese Signalleitungen 15-18 wird der jeweilige Fadenspeicher entsprechend dem zu webenden Muster freigegeben, so daß der von dem jeweiligen Fadenspeicher abgezogene, aktuell zu verarbeitende Faden 7-10 mittels der Hauptdüse 3-6 in den Luftkanal 2 eingetragen wird.According to the drawing, a weaving machine has a profile reed 1, in which an
Die Lufteintragsteuerung 19 steuert über Signalleitungen 20 auch die in den Hauptdüsen 3-6 angeordneten elektrischen Steuerventile an, um die Luft (nicht näher dargestellt) zu den Hauptdüsen 3-6 freizugeben.The
Über weitere Signalleitungen 21 werden von der Lufteintragsteuerung 19 die Stafettendüsen 22 angesteuert. Auf der Fangseite ist ein Schußfadenwächter 23 angeordnet. Der Schußfadenwächter 23 besteht aus einer Lichtquelle 24 und einem Empfangselement 25.The
Die genannten Elemente 24,25 sind einem Verstärker 26 zugeordnet, der über Signalleitungen 27 mit der Lufteintragsteuerung 19 verbunden ist und andererseits über eine Leitung 28 elektrisch von der Lufteintragsteuerung 19 angesteuert wird.The
Es ist nicht näher dargestellt, daß an der Lufteintragsteuerung 19 eine Handprogrammierung oder eine automatische Programmierung vorhanden ist, welche die mechanischen und luftwirksamen Eigenschaften der Garne 7-10 erfasst und als elektrische Signale in der Lufteintragsteuerung 19 verarbeitet. Diese elektrischen Signale werden in Programmierungssignale umgesetzt, die über die Leitungen 28 dem Verstärker 26 zugeführt werden. Der Verstärker 26 hat damit eine programmierbare Verstärkung, die in Abhängigkeit von der elektrischen Signalabgabe des Garnes in dem Schußfadenwächter gesteuert wird. Ziel der gesamten programmierbaren Verstärkung ist es, daß unabhängig von den mechanischen Eigenschaften des Garnes in der Lichtschranke zwischen den Elementen 24 und 25 stets ein gleichbleibendes Ausgangssignal des Verstärkers 26 erzielt wird. Dieses Ausgangssignal wird über die Signalleitungen 27 der Lufteintragsteuerung 19 mitgeteilt. Die digitale Aufbereitung kann hierbei im Verstärker 26 selbst vorgenommen oder in der Lufteintragsteuerung 19 vorgenommen werden.It is not shown that a Manual programming or automatic programming is available, which detects the mechanical and air-active properties of the yarns 7-10 and processes them as electrical signals in the
Kern der vorliegenden Erfindung ist also eine automatisch programmierbare Verstärkung des Schußfadenwächters 23 mit dem Ziel, stets ein konstantes Ausgangssignal des Schußfadenwächters , unabhängig von den mechanischen Eigenschaften des Garnes zu erreichen.
Claims (7)
- Weft stop motion (23) for pneumatic looms with weft insertion of yarns (7-10) of different quality, wherein the yarns (7-10) are taken off the respective thread store and inserted by way of main and relay nozzles (3-6, 22), which are controlled by air insertion control means (19), in the air channel (2) of a profile reed (1) on the catch side of which the weft stop motion (23) is arranged, with monitoring elements the signals of which are delivered to the input of an amplifier (26), characterised in that to the amplifier (26) of the weft stop motion (23) from the air insertion control means (19) there is delivered a signal which contains the mechanical properties of the respective yarn (7-10), wherein the amplifier (26) of the weft stop motion (23) is connected by signal wires (27, 28) to the air insertion control means (19).
- Weft story motion according to claim 1, characterised in that several weft stop motions (23) with amplifier (26) are arranged in series, of which the output signal is regulated subsequently as a function of the yarn properties.
- Weft stop motion according to claims 1 and 2, characterised in that the amplifier (26) of the weft stop motion (23) is connected by signal wires (27) to the air insertion control means (19) and furthermore is triggered electrically by the air insertion control means (19) by means of a wire (28) relating to the yarn properties.
- Weft stop motion according to claims 1-3, characterised in that the amplifier (26) of the weft stop motion (23) is constructed as an automatically programmable amplifier, depending on the mechanical and pneumatic properties of the yarns (7-10).
- Weft stop motion according to claims 1-4, characterised in that a manual or automatic programming means is provided on the air insertion control means (19), wherein the mechanical and pneumatic properties of the yarns (7-10) are detected and delivered to the amplifier (26) as programming signals via the wire (28).
- Weft stop motion according to claims 1-5, characterised in that the amplifier (26) of the weft stop motion (23) always delivers a constant output signal to the air insertion control means (19), irrespective of the mechanical properties of the yarns (7-10).
- Weft stop motion according to claims 1-6, characterised in that digital processing of the mechanical properties of the yarns (7-10) is performed in the amplifier (26) itself.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE3843683 | 1988-12-23 | ||
| DE3843683A DE3843683A1 (en) | 1988-12-23 | 1988-12-23 | Weft thread monitor for air weaving machines |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| EP0374398A1 EP0374398A1 (en) | 1990-06-27 |
| EP0374398B1 true EP0374398B1 (en) | 1992-12-09 |
Family
ID=6370124
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP89118949A Expired - Lifetime EP0374398B1 (en) | 1988-12-23 | 1989-10-12 | Weft stop motion for air looms |
Country Status (4)
| Country | Link |
|---|---|
| US (1) | US5031669A (en) |
| EP (1) | EP0374398B1 (en) |
| JP (1) | JPH02216246A (en) |
| DE (2) | DE3843683A1 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2011015178A1 (en) | 2009-08-03 | 2011-02-10 | Lindauer Dornier Gesellschaft Mbh | Method and device for monitoring the thread arrival during the weft insertion of different weft threads on a weaving machine |
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| DE4012616A1 (en) * | 1990-04-20 | 1991-10-24 | Dornier Gmbh Lindauer | METHOD FOR CONTROLLING THE WIFE ENTRY ON AIR JET WEAVING MACHINES |
| US5295515A (en) * | 1991-02-25 | 1994-03-22 | Kabushiki Kaisha Toyoda Jidoshokki Seisakusho | Apparatus for controlling weft insertion in jet loom |
| IT1265071B1 (en) * | 1993-05-18 | 1996-10-30 | Nuovo Pignone Spa | DEVICE FOR CONTINUOUS ADJUSTMENT OF THE KEY SENSITIVITY, IN THE WEFT INSERTION CONTROL IN A TEXTILE FRAME |
| DE19602513C1 (en) * | 1996-01-25 | 1996-10-02 | Dornier Gmbh Lindauer | Monitoring functioning of magnetic valves in looms |
| JPH10102353A (en) * | 1996-09-26 | 1998-04-21 | Micron Kk | Weft-controlling apparatus in loom |
| DE19824613A1 (en) | 1998-06-02 | 1999-12-09 | Dornier Gmbh Lindauer | Process for monitoring the weft release and stopping process on winding machines for looms |
| SE9900791D0 (en) * | 1999-03-03 | 1999-03-03 | Iro Patent Ag | Method for monitoring weft yarn run / stop conditions |
| DE19936071C1 (en) * | 1999-07-30 | 2000-09-07 | Dornier Gmbh Lindauer | Jet loom pressure hoses have fitted electrical conductors where the current flow is interrupted on a hose failure and the loom control immediately transmits a loom stop signal |
| DE10028049B4 (en) * | 2000-06-06 | 2006-06-29 | Lindauer Dornier Gmbh | Jet loom with a weft insertion system |
| DE10052703A1 (en) | 2000-10-24 | 2002-05-02 | Iro Patent Ag Baar | Weft monitoring device |
| JP4128458B2 (en) * | 2003-01-22 | 2008-07-30 | 津田駒工業株式会社 | Weft detection method in loom |
| KR100623734B1 (en) * | 2004-05-21 | 2006-09-19 | 주식회사 파비노 | Fabric structure and method for manufacturing the same |
| ITTO20040795A1 (en) * | 2004-11-12 | 2005-02-12 | Microtex Sas | DEVICE AND METHOD FOR DETECTION OF THE PLOT WIRE IN A TEXTILE FRAME WITH JET, WITH OPTICAL TRANSMITTED, NON-INVASIVE SENSOR, WITH POSSIBILITY OF ADJUSTABLE POSITIONING, IN A CONTINUOUS WAY, AT HIGH FIDITY AND SENSITIVITY |
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| JPS5750303Y2 (en) * | 1978-04-04 | 1982-11-04 | ||
| US4306035A (en) * | 1980-05-30 | 1981-12-15 | Union Carbide Corporation | Use of alkoxysilicon compositions as foam stabilizers in high resilience polyurethane foams |
| JPS5928576B2 (en) * | 1980-07-14 | 1984-07-13 | 東レ株式会社 | Method for producing impact-resistant thermoplastic resin |
| JPS58208446A (en) * | 1982-05-31 | 1983-12-05 | 津田駒工業株式会社 | Weft yarn detection for jet loom |
| JPS599245A (en) * | 1982-06-30 | 1984-01-18 | 津田駒工業株式会社 | Weft yarn detector of loom |
| SE8207096D0 (en) * | 1982-12-10 | 1982-12-10 | Iro Ab | SYSTEMS FOR TEMPORES STORAGE AND FEEDING OF FOUND YARN LENGTHS PREFERRED TO DISHWAVE MACHINES |
| CH659672A5 (en) * | 1982-11-11 | 1987-02-13 | Loepfe Ag Geb | Weft thread monitor. |
| JPS60162839A (en) * | 1984-02-03 | 1985-08-24 | 株式会社豊田自動織機製作所 | Wefting control of air jet loom |
| BE899671A (en) * | 1984-05-16 | 1984-11-16 | Picanol Nv | Air jet weaving loom has multi:weft injection and transport jets - with sequenced timing control program modulated by measured weft speeds |
-
1988
- 1988-12-23 DE DE3843683A patent/DE3843683A1/en not_active Withdrawn
-
1989
- 1989-10-12 DE DE8989118949T patent/DE58902967D1/en not_active Expired - Lifetime
- 1989-10-12 EP EP89118949A patent/EP0374398B1/en not_active Expired - Lifetime
- 1989-12-19 JP JP1330912A patent/JPH02216246A/en active Pending
- 1989-12-22 US US07/456,165 patent/US5031669A/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2011015178A1 (en) | 2009-08-03 | 2011-02-10 | Lindauer Dornier Gesellschaft Mbh | Method and device for monitoring the thread arrival during the weft insertion of different weft threads on a weaving machine |
| DE102009035904A1 (en) | 2009-08-03 | 2011-02-10 | Lindauer Dornier Gmbh | Method and device for monitoring the yarn arrival during weft insertion of various weft threads on a loom |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH02216246A (en) | 1990-08-29 |
| US5031669A (en) | 1991-07-16 |
| DE58902967D1 (en) | 1993-01-21 |
| DE3843683A1 (en) | 1990-06-28 |
| EP0374398A1 (en) | 1990-06-27 |
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