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EP0108183A1 - Weaving machine - Google Patents

Weaving machine Download PDF

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Publication number
EP0108183A1
EP0108183A1 EP82810473A EP82810473A EP0108183A1 EP 0108183 A1 EP0108183 A1 EP 0108183A1 EP 82810473 A EP82810473 A EP 82810473A EP 82810473 A EP82810473 A EP 82810473A EP 0108183 A1 EP0108183 A1 EP 0108183A1
Authority
EP
European Patent Office
Prior art keywords
weft
weft thread
brake
sensor
thread
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
Application number
EP82810473A
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German (de)
French (fr)
Other versions
EP0108183B1 (en
Inventor
Hansjörg Walch
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Sulzer AG
Original Assignee
Sulzer AG
Gebrueder Sulzer AG
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Sulzer AG, Gebrueder Sulzer AG filed Critical Sulzer AG
Priority to DE8282810473T priority Critical patent/DE3273230D1/en
Priority to EP82810473A priority patent/EP0108183B1/en
Priority to US06/543,169 priority patent/US4527598A/en
Publication of EP0108183A1 publication Critical patent/EP0108183A1/en
Application granted granted Critical
Publication of EP0108183B1 publication Critical patent/EP0108183B1/en
Expired legal-status Critical Current

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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
    • D03D51/34—Weft stop motions
    • 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

Definitions

  • the invention relates to a weaving machine, in particular with beam insertion of the weft material.
  • the respective point in time of arrival of the weft thread tip is scanned by a sensor arranged on the catch side.
  • the entry speed at the relevant entry mechanism is automatically increased or decreased via a control device, depending on whether the point of arrival is too late or too early relative to the corresponding position of the main shaft of the weaving machine. It is also considered to adjust the time at which a weft brake on the weft side is braked together with the entry speed, so that when the entry speed is adjusted to a higher value, the time at which braking is performed earlier, and when the entry speed is adjusted to a lower value, the time the braking is postponed to a later date.
  • weft ends that protrude from the shed can arise on the catch side.
  • the thread ends open each time cut the machine, there may be a relatively large loss of thread. If, for example, the thread ends are folded over to form an inlay edge, this can have a relatively large width in the case of longer weft thread ends. If necessary, the width of the selvedge can also fluctuate if, for example, the weft thread is inserted by an air jet and the length of the inserted weft thread is not always exactly the same.
  • the invention has for its object to provide a particularly improved machine in this regard.
  • the invention resides in a device for controlling a weft brake on the weft as a function of the length of the weft end which protrudes from the shed after the entry on the catch side and deviates from a desired value.
  • the protruding weft ends can largely be brought to the same length.
  • the thread loss can be minimized.
  • it can be achieved that - with weft ends to be inserted - a selvedge of largely constant width is produced, in particular if it is an air jet weaving machine.
  • the figure schematically illustrates the parts of a weaving machine designed according to the invention which are essential for the invention.
  • a weft thread 2 is drawn off and wound onto a stationary, non-rotating winding drum 6 via a winding arm 4 of a weft thread store 5 rotating according to arrow 3.
  • Stored windings 7 are formed on it. These are drawn off to the right with each weft insertion in the figure and passed through a weft thread brake 8 into an insertion nozzle 9.
  • the storage device 5 contains a sensor 24, from which the axial length E of the winding formed from the windings 7 can be regulated via a control device 32, not shown, in the sense that if the length E is too great, the winder 4 is stopped, for example, if the length E is too small, the winder 4 is driven again.
  • the nozzle 9 is fed with air from a compressed air source in the rhythm of the weft insertion.
  • the weft thread is inserted through a cutting device 11 into the shed 31 starting at 12 (arrow 21).
  • the weaving width of the machine is denoted by B, the end of the shed on the catch side by 13 and the resulting fabric by 14.
  • the weft thread 2 passes a first sensor 16, then a cutting device 17 and then two further sensors 18, 19.
  • the sensor 16 forms a sensor of a weft thread monitor device, by means of which the presence of the weft thread 2 on the catch side 15 is sensed. If the weft thread 2 does not arrive, the machine is stopped by the sensor 16.
  • the two sensors 18, 19 are connected in series in the direction of the entry (arrow 21) and are connected to a control or control device 22 connected.
  • the distance between the two sensors 18, 19 is designated C.
  • C forms the range of the nominal value in which the tip 2b of the weft thread 2 is to be after the entry - ie when the inserted weft thread is at a standstill.
  • the length of the weft thread end protruding from the shed 31 is designated by 10.
  • sensor 19 Conversely, if the weft thread tip 26 reaches the sensor 19, for example, or possibly reaches the sensor 19 to the right, sensor 19 emits a signal into the device 22, causing the weft brake 8 to close earlier for the next weft insertion is placed. It is thereby achieved in the following weft insertion that the thread tip 26 comes to a standstill again within the desired value range C.
  • the target value range C can be set to a relatively small value by moving the sensors 18, 19 together, so that the weft thread ends 10 have a largely constant length. Both sensors 18, 19 close to the cutting device 17, so that the length of the weft ends 10 is relatively small and thus the weft waste can be kept low.
  • control device for the automatic adjustment of the time of the weft brake 8 on another type of weaving machine e.g. used on a bar rapier weaving machine.
  • the weft thread is inserted there into the shed 31 instead of through the air nozzle 9 by means of two rapier rods.
  • the strength of the braking (braking force) of the weft brake 8 can be changed by the sensors 18, 19 in the sense that the braking force of the brake 8 is increased for the next weft insertion when the thread tip 26 detects the sensor 19 reached or happened. Conversely, the braking force of the brake 8 is reduced for the next weft insertion if the weft thread 26 does not reach the sensor 18. The following weft insertion can be carried out again in such a way that the weft thread tip 26 comes to a standstill within the desired value range C at the end of the weft insertion.
  • the control device described need not have a comparator (arming device) in the sense that it can only work in a certain angular range of the main shaft of the weaving machine. Rather, the control or regulating device 18, 19, 22 can work without such a comparator or arming device and thus independently of the current position of the main shaft of the weaving machine, because the sensors 18, 19 only allow the length of the edge 13 protruding from the shed 21 protruding weft thread end 10, in particular whether the tip 26 of the thread end 10 comes to a standstill in the area C of the desired value. This scanning can take place independently of the associated angular range of the main shaft of the weaving machine. The sensors 18, 19 can be kept under tension during the entire working cycle of the weaving machine, so that they are always ready to touch.
  • more than two, e.g. three or four sensors arranged one behind the other can be used to scan the stationary weft thread ends 26.
  • the arrangement can e.g. be made such that when several types of weft yarn are alternately inserted, a first pair of sensors is used to form the target value range of a first weft thread type, while a second pair of sensors is used to form a target value range for a second weft thread type.
  • the cutting device 17 can optionally be omitted, in particular in the case of weaving machines with insert strips, in which the entire, protruding weft thread end 10 is inserted after the tray has been changed.

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  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Looms (AREA)

Abstract

Webmaschine mit einer Steuereinrichtung, die zwei auf der Fangseite (15) der Webmaschine angeordnete Sensoren (18, 19) ethält, durch welche die Länge des aus dem Webfach (31) über den fangseitigen Webfachende (13) herausragenden Schussfadenendes (10) abgetastet wird. Leigt die Fadenspitze (26) bei Stillstand des Schussfadens (2) nach dem Eintrag innerhalb des Sollwertbereiches (G), so wird die Schussfadenbremse (8) nicht verstellt. Liegt es links neben dem Sensor (18), so wird die Bremse (8) über den Sensor (18) auf später, liegt die Spitze (26), wie in der Figur gezeigt, rechts neben dem Sensor (19), so wird die Bremse (8) über den Sensor (19) auf früher gestellt. Auf diese Weise lässt sich mit einem Minimum an Schussfadenabfall auskommen bzw. die Schussfadenenden (10) haben im westenlichen immer gleiche Länge.Loom with a control device which contains two sensors (18, 19) arranged on the catch side (15) of the weaving machine, by means of which the length of the weft thread end (10) protruding from the shed (31) over the catch-side shed end (13) is scanned. If the thread tip (26) lies when the weft thread (2) is at a standstill after being inserted within the target value range (G), the weft thread brake (8) is not adjusted. If it is to the left of the sensor (18), the brake (8) via the sensor (18) is later, if the tip (26), as shown in the figure, is to the right of the sensor (19), then the Brake (8) set earlier via the sensor (19). In this way, a minimum of weft thread waste can be used, or the weft thread ends (10) always have the same length in the western part.

Description

Die Erfindung betrifft eine Webmaschine, insbesondere mit Strahleintrag des Schussmaterials.The invention relates to a weaving machine, in particular with beam insertion of the weft material.

Bei einer bisherigen Maschine dieser Art (DE-OS 30 02 862.7) wird durch einen fangseits angeordneten Sensor der jeweilige Zeitpunkt des Eintreffens der Schussfadenspitze abgetastet. In Abhängigkeit davon wird über eine Steuervorrichtung selbsttätig die Eintragsgeschwindigkeit an dem betreffenden Eintragsmechanismus erhöht oder erniedrigt, je nach dem, ob der Eintreffzeitpunkt relativ zu der entsprechenden Position der Hauptwelle der Webmaschine zu spät bzw. zu früh liegt. Dabei ist auch in Betracht gezogen, zusammen mit der Eintragsgeschwindigkeit auch den Zeitpunkt des Bremsens einer schusseitigen Schussfadenbremse zu verstellen, so dass bei Verstellung der Eintragsgeschwindigkeit auf einen höheren Wert zugleich der Zeitpunkt der Bremsung auf früher, bei Verstellung der Eintragsgeschwindigkeit auf einen niedrigeren Wert der Zeitpunkt der Bremsung auf einen späteren Zeitpunkt verlegt wird.In a previous machine of this type (DE-OS 30 02 862.7), the respective point in time of arrival of the weft thread tip is scanned by a sensor arranged on the catch side. Depending on this, the entry speed at the relevant entry mechanism is automatically increased or decreased via a control device, depending on whether the point of arrival is too late or too early relative to the corresponding position of the main shaft of the weaving machine. It is also considered to adjust the time at which a weft brake on the weft side is braked together with the entry speed, so that when the entry speed is adjusted to a higher value, the time at which braking is performed earlier, and when the entry speed is adjusted to a lower value, the time the braking is postponed to a later date.

Dabei entsteht der Nachteil, dass auf der Fangseite verschieden lange, aus dem Webfach herausragende Schussfadenenden entstehen können. Wernden die Fadenenden jeweils auf der Maschine abgeschnitten, so entsteht gegebenenfalls ein relativ grosser Fadenverlust. Werden die Fadenenden beispielsweise zu einer Einlegkante umgelegt, so kann diese bei längeren Schussfadenenden relativ grosse Breite erhalten. Gegebenenfalls kann die Breite der Webkante auch schwanken, wenn z.B. der Schussfaden durch einen Luftstrahl eingetragen und die Länge der eingetragenen Schussfäden nicht immer genau gleich ist.This creates the disadvantage that weft ends that protrude from the shed can arise on the catch side. The thread ends open each time cut the machine, there may be a relatively large loss of thread. If, for example, the thread ends are folded over to form an inlay edge, this can have a relatively large width in the case of longer weft thread ends. If necessary, the width of the selvedge can also fluctuate if, for example, the weft thread is inserted by an air jet and the length of the inserted weft thread is not always exactly the same.

Der Erfindung liegt die Aufgabe zugrunde, eine besonders in dieser Hinsicht verbesserte Maschine zu schaffen.The invention has for its object to provide a particularly improved machine in this regard.

Die Erfindung liegt in einer Einrichtung zum Steuern einer schusseitigen Schussfadenbremse in Abhängigkeit von der nach dem Eintrag auf der Fangseite aus dem Webfach herausstehenden, von einem Sollwert abweichenden Länge des Schussfadenendes. Auf diese Weise lassen sich die herausragenden Schussfadenenden weitgehend auf gleiche Länge bringen. Beim Abschneiden der Schussfadenenden lässt sich erreichen, dass der Fadenverlust gering wird. Ferner kann erzielt werden, dass - bei einzulegenden Schussfadenenden - eine Webkante von weitgehend konstanter Breite entsteht, insbesondere wenn es sich um eine Luftstrahlwebmaschine handelt.The invention resides in a device for controlling a weft brake on the weft as a function of the length of the weft end which protrudes from the shed after the entry on the catch side and deviates from a desired value. In this way, the protruding weft ends can largely be brought to the same length. When the weft ends are cut off, the thread loss can be minimized. Furthermore, it can be achieved that - with weft ends to be inserted - a selvedge of largely constant width is produced, in particular if it is an air jet weaving machine.

Weitere Merkmale ergeben sich aus der folgenden Beschreibung von Ausführungsbeispielen in Verbindung mit der Zeichnung und den Ansprüchen.Further features result from the following description of exemplary embodiments in conjunction with the drawing and the claims.

Die Figur veranschaulicht in schematischer Darstellung die für die Erfindung wesentlichen Teile einer erfindungsgemäss ausgebildeten Webmaschine.The figure schematically illustrates the parts of a weaving machine designed according to the invention which are essential for the invention.

Von einer ortsfest angeordneten Schussfadenvorratsspule 1 wird ein Schussfaden 2 abgezogen und über einen gemäss Pfeil 3 rotierenden Wickelarm 4 eines Schussfadenspeichers 5 auf eine feststehende, nicht rotierende Wickeltrommel 6 aufgewickelt. Auf ihr entstehen gespeicherte Windungen 7. Diese werden bei jedem Schusseintrag in der Figur nach rechts abgezogen und durch eine schusseitige Schussfadenbremse 8 in eine Eintragsdüse 9 geleitet.From a fixedly arranged weft supply bobbin 1 a weft thread 2 is drawn off and wound onto a stationary, non-rotating winding drum 6 via a winding arm 4 of a weft thread store 5 rotating according to arrow 3. Stored windings 7 are formed on it. These are drawn off to the right with each weft insertion in the figure and passed through a weft thread brake 8 into an insertion nozzle 9.

Die Speichervorrichtung 5 enthält einen Sensor 24, von dem aus über eine nicht dargestellte Steuervorrichtung 32 die axiale Länge E der aus den Windungen 7 gebildeten Wicklung reguliert werden kann, und zwar in dem Sinn, dass bei zu grosser Länge E der Wickler 4 beispielsweise stillgesetzt, bei zu kleiner Länge E der Wickler 4 wieder angetrieben wird.The storage device 5 contains a sensor 24, from which the axial length E of the winding formed from the windings 7 can be regulated via a control device 32, not shown, in the sense that if the length E is too great, the winder 4 is stopped, for example, if the length E is too small, the winder 4 is driven again.

Die Düse 9 wird im Rhythmus des Schusseintrages von einer Druckluftquelle mit Luft gespeist. Der Schussfaden wird durch eine Schneidvorrichtung 11 hindurch in das bei 12 beginnende Webfach 31 eingetragen (Pfeil 21). Die Webbreite der Maschine ist mit B, das fangseitige Ende des Webfaches mit 13 und das entstehende Gewebe mit 14 bezeichnet.The nozzle 9 is fed with air from a compressed air source in the rhythm of the weft insertion. The weft thread is inserted through a cutting device 11 into the shed 31 starting at 12 (arrow 21). The weaving width of the machine is denoted by B, the end of the shed on the catch side by 13 and the resulting fabric by 14.

Auf der Fangseite 15 passiert der Schussfaden 2 einen ersten Sensor 16, darauf eine Schneideinrichtung 17 und anschliessend zwei weitere Sensoren 18, 19. Der Sensor 16 bildet einen Fühler einer Schussfadenwächtereinrichtung, durch welche die Präsenz des Schussfadens 2 auf der Fangseite 15 abgetastet wird. Bei nicht eintreffendem Schussfaden 2 wird die Maschine vom Sensor 16 aus stillgesetzt.On the catch side 15, the weft thread 2 passes a first sensor 16, then a cutting device 17 and then two further sensors 18, 19. The sensor 16 forms a sensor of a weft thread monitor device, by means of which the presence of the weft thread 2 on the catch side 15 is sensed. If the weft thread 2 does not arrive, the machine is stopped by the sensor 16.

Die beiden Sensoren 18, 19 sind in Richtung des Eintrags (Pfeil 21) hintereinander geschaltet und an einer Steuer- bzw. Regeleinrichtung 22 angeschlossen. Der Abstand der beiden Sensoren 18, 19 ist mit C bezeichnet. C bildet den Bereich des Sollwertes, in welchem sich die Spitze 2b des Schussfadens 2 nach dem Eintrag - d.h. bei Stillstand des eingetragenen Schussfadens - befinden soll. Die Länge des aus dem Webfach 31 herausragenden Schussfadenendes ist mit 10 bezeichnet.The two sensors 18, 19 are connected in series in the direction of the entry (arrow 21) and are connected to a control or control device 22 connected. The distance between the two sensors 18, 19 is designated C. C forms the range of the nominal value in which the tip 2b of the weft thread 2 is to be after the entry - ie when the inserted weft thread is at a standstill. The length of the weft thread end protruding from the shed 31 is designated by 10.

Da der Eintrag durch Luftstrahl aus der Düse 9 erfolgt, kann es während des Betriebes vorkommen, dass die Schussfadenspitze 26 beispielsweise bei etwas zu schwachem Luftstrom aus der Düse 9 nur etwa bis zur Schneidvorrichtung 17 gelangt. Sie passiert also beide Sensoren 18, 19 nicht. Nunmehr wird vom Sensor 18 aus ein Signal in die Einrichtung 22 gegeben, durch welche über die Leitung 23 der Schliesszeitpunkt der Schussfadenbremse 8 für den nächsten Schusseintrag auf später gelegt wird, so dass beim nächsten Schusseintrag die Schussfadenspitze 26 bis in den Sollwertbereich C gelangt.Since the entry is made by an air jet from the nozzle 9, it can happen during operation that the weft thread tip 26 only reaches the cutting device 17, for example when the air flow is somewhat weak, from the nozzle 9. So it does not pass both sensors 18, 19. A signal is now emitted from the sensor 18 into the device 22, through which the closing time of the weft brake 8 for the next weft insertion is set to later via the line 23, so that the weft tip 26 reaches the desired value range C at the next weft insertion.

Erreicht die Schussfadenspitze 26 umgekehrt beispielsweise den Sensor 19 oder gelangt sie möglicherweise in der Figur bis rechts über den Sensor 19 hinaus, so wird vom Sensor 19 aus ein Signal in die Einrichtung 22 gegeben, wodurch der Schliesszeitpunkt der Schussfadenbremse 8 für den nächsten Schusseintrag auf früher gelegt wird. Dadurch wird beim folgenden Schusseintrag erreicht, dass die Fadenspitze 26 wieder innerhalb des Sollwertbereiches C zum Stillstand kommt.Conversely, if the weft thread tip 26 reaches the sensor 19, for example, or possibly reaches the sensor 19 to the right, sensor 19 emits a signal into the device 22, causing the weft brake 8 to close earlier for the next weft insertion is placed. It is thereby achieved in the following weft insertion that the thread tip 26 comes to a standstill again within the desired value range C.

Der Sollwertbereich C kann durch Aneinanderrücken der Sensoren 18, 19 auf einen relativ kleinen Wert eingestellt werden, so dass eine weitgehend konstante Länge der Schussfadenenden 10 entsteht. Auch können beide Sensoren 18, 19 nahe an die Schneidvorrichtung 17 herangerückt werden, so dass die Länge der Schussfädenenden 10 verhältnismässig klein und damit der Schussfadenabfall gering gehalten werden kann.The target value range C can be set to a relatively small value by moving the sensors 18, 19 together, so that the weft thread ends 10 have a largely constant length. Both sensors 18, 19 close to the cutting device 17, so that the length of the weft ends 10 is relatively small and thus the weft waste can be kept low.

Bei einem Ausführungsbeispiel ist die Steuereinrichtung für die selbsttätige Verstellung des Zeitpunktes der Schussfadenbremse 8 an einer anderen Webmaschinengattun, z.B. an einer Stangengreifer-Webmaschine verwendet. Der Schussfaden wird dort statt durch die Luftdüse 9 durch zwei Greiferstangen in das Webfach 31 eingetragen.In one embodiment, the control device for the automatic adjustment of the time of the weft brake 8 on another type of weaving machine, e.g. used on a bar rapier weaving machine. The weft thread is inserted there into the shed 31 instead of through the air nozzle 9 by means of two rapier rods.

Bei einer weiteren Ausführungsform kann von den Sensoren 18, 19 aus die Stärke der Bremsung (Bremskraft) der Schussfadenbremse 8 verändert werden, und zwar in dem Sinn, dass die Bremskraft der Bremse 8 für den nächsten Schusseintrag vergrössert wird, wenn die Fadenspitze 26 den Sensor 19 erreicht oder passiert hat. Umgekehrt wird die Bremskraft der Bremse 8 für den nächsten Schusseintrag verringert, wenn der Schussfaden mit seiner Spitze 26 den Sensor 18 nicht erreicht. Der folgende Schusseintrag kann dadurch wieder so vollzogen werden, dass die Schussfadenspitze 26 am Ende des Schusseintrages innerhalb des Sollwertbereiches C zum Stillstand kommt.In a further embodiment, the strength of the braking (braking force) of the weft brake 8 can be changed by the sensors 18, 19 in the sense that the braking force of the brake 8 is increased for the next weft insertion when the thread tip 26 detects the sensor 19 reached or happened. Conversely, the braking force of the brake 8 is reduced for the next weft insertion if the weft thread 26 does not reach the sensor 18. The following weft insertion can be carried out again in such a way that the weft thread tip 26 comes to a standstill within the desired value range C at the end of the weft insertion.

Die beschriebene Regeleinrichtung braucht keinen Vergleicher (Scharfmacher) etwa in dem Sinn aufzuweisen, dass sie nur in einem bestimmten Winkelbereich der Hauptwelle der Webmaschine arbeiten kann. Vielmehr vermag die Steuer- bzw. Regeleinrichtung 18, 19, 22 ohne einen solchen Vergleicher bzw. Scharfmacher und damit unabhängig von der momentanen Position der Hauptwelle der Webmaschine zu arbeiten, weil durch die Sensoren 18, 19 nur die Länge des über den Rand 13 des Webfaches 21 herausstehenden Schussfadenendes 10 abgetastet wird, insbesondere ob die Spitze 26 des Fadenendes 10 im Bereich C des Sollwertes zum Stillstand kommt. Diese Abtastung kann unabhängig von dem zugehörigen Winkelbereich der Hauptwelle der Webmaschine erfolgen. Die Sensoren 18, 19 können während des ganzen Arbeitsspiels der Webmaschine unter Spannung gehalten werden, so dass sie ständig tastbereit sind.The control device described need not have a comparator (arming device) in the sense that it can only work in a certain angular range of the main shaft of the weaving machine. Rather, the control or regulating device 18, 19, 22 can work without such a comparator or arming device and thus independently of the current position of the main shaft of the weaving machine, because the sensors 18, 19 only allow the length of the edge 13 protruding from the shed 21 protruding weft thread end 10, in particular whether the tip 26 of the thread end 10 comes to a standstill in the area C of the desired value. This scanning can take place independently of the associated angular range of the main shaft of the weaving machine. The sensors 18, 19 can be kept under tension during the entire working cycle of the weaving machine, so that they are always ready to touch.

Statt der beiden zur Steuereinrichtung 22 gehörenden Abtastsensoren 18, 19 können auch mehr als zwei, z.B. drei oder vier hintereinander angeordnete Sensoren zur Äbtastung der stillstehenden Schussfadenendes 26 verwendet werden. Dabei kann die Anordnung z.B. so getroffen sein, dass bei wechselweisem Eintrag mehrerer Schussgarnsorten ein erstes Sensorenpaar für die Bildung des Sollwertbereiches einer ersten Schussfadensorte verwendet wird, ein zweites Sensorenpaar dagegen zur Bildung eines Sollwertbereiches für eine zweite Schussfadensorte.Instead of the two scanning sensors 18, 19 belonging to the control device 22, more than two, e.g. three or four sensors arranged one behind the other can be used to scan the stationary weft thread ends 26. The arrangement can e.g. be made such that when several types of weft yarn are alternately inserted, a first pair of sensors is used to form the target value range of a first weft thread type, while a second pair of sensors is used to form a target value range for a second weft thread type.

Die Schneideinrichtung 17 kann gegebenenfalls fortgelassen werden, insbesondere bei Webmaschinen mit Einlegleisten, bei denen das ganze, herausragende Schussfadenende 10 nach Fachwechsel zur Leiste eingelegt wird.The cutting device 17 can optionally be omitted, in particular in the case of weaving machines with insert strips, in which the entire, protruding weft thread end 10 is inserted after the tray has been changed.

Claims (3)

1. Webmaschine, insbesondere mit Strahleintrag des Schussmaterials (2), gekennzeichnet , durch eine Einrichtung (18, 19, 22) zum Steuern einer schusseitigen Schussfadenbremse (8) in Abhängigkeit von der nach dem Eintrag auf der Fangseite (15) aus dem Webfach (B) herausstehenden, von einem Sollwert (C) abweichenden Länge des Schussfadenendes (lo).1. Weaving machine, in particular with beam entry of the weft material (2), characterized by a device (18, 19, 22) for controlling a weft brake (8) on the weft as a function of that after the entry on the catch side (15) from the shed ( B) protruding length of the weft end (lo) deviating from a nominal value (C). 2. Maschine nach Anspruch 1, gekennzeichnet durch zwei in der Verlängerung des Eintragsweges hintereinander angeordnete Sensoren (18, 19) der Steuereinrichtung (18, 19, 22) zum Eingrenzen eines Sollwertbereiches (C) und zum selbstätigen Verstellen der Bremse (8).2. Machine according to claim 1, characterized by two sensors (18, 19) of the control device (18, 19, 22) arranged one behind the other in the extension of the entry path for limiting a setpoint range (C) and for automatically adjusting the brake (8). 3. Maschine nach Anspruch 1 und 2, dadurch gekennzeichnet, dass die Anordnung so getroffen ist, dass die Bremse (8) bei Ueberschreiten des Sollwertbereiches (C) durch ein eingetragenen Schussfaden (2) auf früheres Schliessen und bei Unterschreiten des Sollwertbereiches (C) auf späteres Schliessen geschaltet wird.3. Machine according to claim 1 and 2, characterized in that the arrangement is such that the brake (8) when the setpoint range (C) is exceeded by an inserted weft thread (2) for earlier closing and when the setpoint range (C) is undershot is switched to later closing.
EP82810473A 1982-11-08 1982-11-08 Weaving machine Expired EP0108183B1 (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
DE8282810473T DE3273230D1 (en) 1982-11-08 1982-11-08 Weaving machine
EP82810473A EP0108183B1 (en) 1982-11-08 1982-11-08 Weaving machine
US06/543,169 US4527598A (en) 1982-11-08 1983-10-19 Control apparatus for a weaving machine

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP82810473A EP0108183B1 (en) 1982-11-08 1982-11-08 Weaving machine

Publications (2)

Publication Number Publication Date
EP0108183A1 true EP0108183A1 (en) 1984-05-16
EP0108183B1 EP0108183B1 (en) 1986-09-10

Family

ID=8190086

Family Applications (1)

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EP82810473A Expired EP0108183B1 (en) 1982-11-08 1982-11-08 Weaving machine

Country Status (3)

Country Link
US (1) US4527598A (en)
EP (1) EP0108183B1 (en)
DE (1) DE3273230D1 (en)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2567926A1 (en) * 1984-07-20 1986-01-24 Nissan Motor WEAVING EQUIPPED WITH A SYSTEM FOR ADJUSTING THE LAUNCH OF THE FRAME
EP0171057A3 (en) * 1984-08-06 1986-07-30 Tsudakoma Corporation Apparatus of and method for mending weft yarn in weft yarn inserter
DE3529110C1 (en) * 1985-08-14 1987-01-02 Sobrevin Soc De Brevets Ind Et Device for sensing the free end of a weft thread flying through the shed of a weaving machine by means of compressed air or the like
EP0229432A3 (en) * 1986-01-13 1988-06-22 Tsudakoma Corporation Faulty picking diagnosing system for a fluid jet loom
EP0716171A3 (en) * 1994-12-06 1996-07-31 Dornier Gmbh Lindauer Weft tensioning and detecting device for jet looms
CN102776672A (en) * 2012-07-23 2012-11-14 苏州迪盛织造整理有限公司 Device and method for controlling weft insertion stability of metal wire

Families Citing this family (9)

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Publication number Priority date Publication date Assignee Title
SE8207096D0 (en) * 1982-12-10 1982-12-10 Iro Ab SYSTEMS FOR TEMPORES STORAGE AND FEEDING OF FOUND YARN LENGTHS PREFERRED TO DISHWAVE MACHINES
JPH0639735B2 (en) * 1984-07-24 1994-05-25 日産自動車株式会社 Fluid ejection loom controller
CH668444A5 (en) * 1985-09-06 1988-12-30 Zellweger Uster Ag Catcher for the weft insertion device of a weaving machine.
KR910003227B1 (en) * 1987-03-16 1991-05-24 쯔다고마 고오교오 가부시끼가이샤 Method for judging replacemnet of bobbin
DE19716587C1 (en) * 1997-04-21 1998-09-03 Dornier Gmbh Lindauer On=line supervisory control for weft monitoring system of air jet loom
DE10115172C1 (en) 2001-06-08 2002-12-19 Dornier Gmbh Lindauer Process for monitoring weft insertion in air jet weaving machines and device for carrying out the process
US7048011B2 (en) * 2003-09-10 2006-05-23 Printing Research, Inc. Printing press cylinder flexible jacket covering
NL1027372C2 (en) * 2004-10-29 2006-05-03 Te Strake Textile B V Weaving device.
EP2034061B1 (en) * 2007-09-10 2010-09-01 ITEMA (Switzerland) Ltd. Cutting device for a loom and method for operating the same

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GB2065726A (en) * 1979-11-15 1981-07-01 Rueti Te Strake Bv Jet looms and methods
DE3002862A1 (en) * 1980-01-23 1981-07-30 Gebrüder Sulzer AG, 8401 Winterthur WEAVING MACHINE
DE3134928A1 (en) * 1980-09-05 1982-05-27 Rueti Ag Maschf Jet-weaving machine
FR2508501A1 (en) * 1981-06-30 1982-12-31 Saurer Diederichs Sa Determination of weft length-on shuttleless loom, - using weft detector and weft brake

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SU632773A1 (en) * 1977-06-03 1978-11-15 Всесоюзный Научно-Исследовательский Институт По Переработке Химических Волокон Method of feeding weft thread on pneumatic loom
JPS5750303Y2 (en) * 1978-04-04 1982-11-04
CH647279A5 (en) * 1980-10-14 1985-01-15 Loepfe Ag Geb ELECTRONIC Weft Monitor on an Air Jet Weaving Machine.
CH648614A5 (en) * 1980-12-13 1985-03-29 Loepfe Ag Geb ELECTRONIC CONTROL DEVICE ON A GRIPPER SHOT WEAVING MACHINE.

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2065726A (en) * 1979-11-15 1981-07-01 Rueti Te Strake Bv Jet looms and methods
DE3002862A1 (en) * 1980-01-23 1981-07-30 Gebrüder Sulzer AG, 8401 Winterthur WEAVING MACHINE
DE3134928A1 (en) * 1980-09-05 1982-05-27 Rueti Ag Maschf Jet-weaving machine
FR2508501A1 (en) * 1981-06-30 1982-12-31 Saurer Diederichs Sa Determination of weft length-on shuttleless loom, - using weft detector and weft brake

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2567926A1 (en) * 1984-07-20 1986-01-24 Nissan Motor WEAVING EQUIPPED WITH A SYSTEM FOR ADJUSTING THE LAUNCH OF THE FRAME
EP0171057A3 (en) * 1984-08-06 1986-07-30 Tsudakoma Corporation Apparatus of and method for mending weft yarn in weft yarn inserter
DE3529110C1 (en) * 1985-08-14 1987-01-02 Sobrevin Soc De Brevets Ind Et Device for sensing the free end of a weft thread flying through the shed of a weaving machine by means of compressed air or the like
EP0229432A3 (en) * 1986-01-13 1988-06-22 Tsudakoma Corporation Faulty picking diagnosing system for a fluid jet loom
EP0716171A3 (en) * 1994-12-06 1996-07-31 Dornier Gmbh Lindauer Weft tensioning and detecting device for jet looms
US5606998A (en) * 1994-12-06 1997-03-04 Lindauer Dornier Gesellschaft Mbh Weft detecting and stretching apparatus in a jet weaving loom
CN102776672A (en) * 2012-07-23 2012-11-14 苏州迪盛织造整理有限公司 Device and method for controlling weft insertion stability of metal wire

Also Published As

Publication number Publication date
DE3273230D1 (en) 1986-10-16
US4527598A (en) 1985-07-09
EP0108183B1 (en) 1986-09-10

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