EP1927691A1 - Weft holding device and method for a rapier weaving machine - Google Patents
Weft holding device and method for a rapier weaving machine Download PDFInfo
- Publication number
- EP1927691A1 EP1927691A1 EP07119160A EP07119160A EP1927691A1 EP 1927691 A1 EP1927691 A1 EP 1927691A1 EP 07119160 A EP07119160 A EP 07119160A EP 07119160 A EP07119160 A EP 07119160A EP 1927691 A1 EP1927691 A1 EP 1927691A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- thread
- gripper
- weft thread
- rapier
- channel
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- 238000000034 method Methods 0.000 title claims description 24
- 238000009941 weaving Methods 0.000 title claims description 16
- 238000007664 blowing Methods 0.000 claims description 21
- 230000003068 static effect Effects 0.000 abstract 1
- 235000014676 Phragmites communis Nutrition 0.000 description 8
- 238000003780 insertion Methods 0.000 description 6
- 230000037431 insertion Effects 0.000 description 6
- 238000012423 maintenance Methods 0.000 description 3
- 239000004744 fabric Substances 0.000 description 2
- 208000026062 Tissue disease Diseases 0.000 description 1
- 230000001419 dependent effect Effects 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
Images
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
- D03D47/40—Forming selvedges
-
- 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
- D03D47/12—Looms in which bulk supply of weft does not pass through shed, e.g. shuttleless looms, gripper shuttle looms, dummy shuttle looms wherein single picks of weft thread are inserted, i.e. with shedding between each pick
- D03D47/125—Weft holding devices
-
- 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
- D03D47/12—Looms in which bulk supply of weft does not pass through shed, e.g. shuttleless looms, gripper shuttle looms, dummy shuttle looms wherein single picks of weft thread are inserted, i.e. with shedding between each pick
- D03D47/18—Looms in which bulk supply of weft does not pass through shed, e.g. shuttleless looms, gripper shuttle looms, dummy shuttle looms wherein single picks of weft thread are inserted, i.e. with shedding between each pick two weft inserters meeting at or near the middle of the shed and transferring the weft from one to the other
Definitions
- the invention relates to a safety gear and a method for holding a registered weft in a rapier according to the preamble of claim 1 and 6 and a rapier with such a safety gear or equipped for carrying out such a method.
- the weft thread is introduced into a shed by means of a gripper gripper fastened to a gripper bar or a flexible belt and taken over by a gripper gripper at a transfer point in the middle part of the shed and transported onward.
- the Bringergreifer has the task to pick up the presented weft safely, enter the same in the shed and precisely feed the gripper rapier.
- the gripper rapier has the task of forwarding the weft thread until it has reached a release position outside the shed.
- Each of the grippers includes a rapier head with a thread clamp to clamp the weft during weft insertion.
- rapier looms In the release position outside the shed the thread clamp of the gripper rapier is opened and the clamped therein end of the thread released. So that the weft thread remains stretched, rapier looms usually provide a catch strip which is closed immediately after the weft insertion and before the shed, and a suction nozzle or a suction channel, which receives the thread end and holds.
- JP 09-059848 A discloses a suction device for rapier looms, which surrounds the weft thread on the arrival side between the release point and the shed on three or four sides and in which a suction is formed, which is connected to a suction. This makes it possible to suck the released thread end from several directions and hold in the suction.
- the object of the invention is to provide a safety gear and a method for holding a registered weft yarn in a rapier and a rapier with such a safety gear or equipped to carry out such a method by which even coarse weft yarns can be kept safe after the entry ,
- the inventive catching device for holding a registered weft thread in a rapier with at least one gripper, which is movable along a gripper track comprises a stationary mounted on the rapier holding channel to receive a yarn end of the inserted weft yarn and hold.
- the safety device comprises a stationarily mounted on the rapier loom Ablenkdüse, for example, a Ablenkdüse with clocked Blasstrom to deflect the thread end of the registered weft thread to the holding channel.
- the retaining channel is designed for the connection of a suction line.
- the retaining channel and the deflection nozzle can be mounted in the region of the gripper track, for example on opposite sides of the gripper track.
- the retaining channel and the deflecting nozzle are designed and / or the catching device is provided with fastening elements such that the retaining channel and the deflecting nozzle can be mounted in the region of the rapier track.
- the deflection nozzle can be mounted such that the blowing flow of the same is directed transversely to the gripper track.
- the deflection nozzle and the retaining channel can be mounted so that the blowing flow of the deflection nozzle is partially or completely absorbed by the retaining channel.
- the registered weft thread is released by the gripper and a yarn end of the inserted weft thread from a stationary on the rapier arranged holding channel and held.
- the thread end of the inserted weft thread is deflected by means of a deflection nozzle, which is arranged stationarily on the rapier weaving machine, towards the holding channel.
- the thread end of the inserted weft thread is held in the holding channel by means of a blowing and / or suction flow.
- a blowing stream is generated transversely to the gripper track by means of the deflection nozzle.
- the thread end of the inserted weft thread is blown by means of a blowing flow of the deflection nozzle into the holding channel and / or held therein.
- the invention comprises a looper with a safety gear according to one of the embodiments described above or equipped for carrying out a method according to one of the embodiments described above.
- the safety gear, the method and rapier weaving machine according to the present invention have the advantage that even with coarser weft yarns the thread ends can no longer get behind the reed. This makes it possible to achieve a better fabric quality, especially with coarser weft yarns, than is possible on rapier weaving machines with conventional safety devices. In addition, the disturbance-related downtime of the rapier can be reduced compared to rapier with conventional safety gear and the failure.
- the manufacturing costs and the energy and maintenance costs compared to conventional safety gear for rapier weaving machines can be reduced because the suction fan and provided between holding channel and suction fan filter unit can be reduced or omitted altogether, and because the generation of a directional blow stream requires less energy than the generation of a wide suction flow in the area of the hook path. At the same time the maintenance of the filter unit can be reduced or avoided altogether.
- the Figures 1 and 2 show an embodiment of a safety gear according to the present invention in a rapier loom from above or in an oblique view.
- the rapier weaving machine comprises at least one gripper 6, which, for example, as in Fig. 1 shown, may be designed as a gripper rapier.
- the in Fig. 1 shown gripper is along a gripper track 6a in the direction 6a 'back and forth to enter a weft thread 9 in a shed, which is formed from warp threads 10, 10.1, 10.2.
- a gripper guide 2 may be provided.
- the gripper can, as in Fig. 1 shown to be provided with a thread clamp to clamp the weft during weft insertion.
- the safety gear 1 shown comprises a retaining channel 5, which is arranged stationarily on the rapier loom and can be fastened, for example by means of a fastening element 7.2 on the gripper guide 2 to receive the thread end of the registered weft thread 9 and hold.
- the catching device shown comprises a catching nozzle 3, which is arranged stationarily on the rapier weaving machine and can be fastened to the hook guide 2, for example by means of fastening elements 7.1, 7.1 ', 7.1 "Advantageously, the catching nozzle 3 is connected to a line 3a to supply a blowing fluid By means of the deflection nozzle 3, a blowing stream 4 can be generated in order to deflect the thread end of the inserted weft thread toward the holding channel 5. If necessary, the blowing stream can be clocked.
- a blowing stream 4 can be generated transversely to the hook path 6a by means of the deflection nozzle 3.
- the yarn end of the inserted weft yarn is blown by means of the Ablenkdüse 3 in an opening 5a of the holding channel 5, for example by the Ablenkdüse and the holding channel are mounted so that the blowing of the Ablenkdüse is directed to the holding channel and / or partially or completely from Holding channel can be added.
- the retaining channel 5 is designed for the connection of a suction line, so that the thread end of the inserted weft thread can be conveyed by means of a blowing and / or suction flow in the opening 5a of the holding channel 5.
- the inserted weft thread can then be held in the holding channel 5 by means of the blowing and / or suction flow.
- the rapier can, as in the Figures 1 and 2 shown to be equipped with a Riet 8 to strike the registered weft thread 9 to a stop edge 12.
- the thread end of the inserted weft thread 9 is thereby, as described above, deflected by the blowing stream 4 of the Ablenkdüse 3 to the holding channel 5, so that the thread end can not reach behind the same during the stop movement of Riets. Thanks to this measure, tissue disorders that can occur due to thread ends woven behind the reed are avoided.
- the thread ends of the previously inserted weft threads 9 ', 9 ", 9'" remain in the holding channel 5 until they are pulled out of the holding channel by the advance of the fabric 11 produced by the weaving process. The thread ends pulled out of the holding channel are at this time far enough away from the reed 8 that there is no longer any danger that they will be woven.
- the rapier weaving machine comprises at least one gripper 6, which is moved along a gripper track 6a for the insertion of the weft thread.
- the gripper Of the Registered weft thread 9 is then released by the gripper and received the thread end of the inserted weft thread from a stationary arranged on the rapier holding channel 5 and held.
- the thread end of the inserted weft thread is deflected by means of a Ablenkdüse 3, which is stationary on the rapier loom, to the holding channel 5 out.
- a blowing stream 4 is generated transversely to the hook path 6a by means of the deflection nozzle 3.
- the thread end of the inserted weft thread 9 is blown into the holding channel 5 by means of the blowing stream 4 of the deflection nozzle 3.
- the thread end of the inserted weft thread 9 is held in the holding channel 5 by means of a blowing and / or suction flow.
- the invention comprises a rapier loom with a safety gear according to one of the embodiments described above and / or equipped to carry out a method as described above.
- the safety gear and the method according to the above description are suitable for holding fine and coarse weft yarns in rapier weaving machines. Thanks to the use of a deflection nozzle, the energy and maintenance costs can be reduced compared to conventional safety devices for rapier weaving machines, which are provided with only one suction channel.
Landscapes
- Engineering & Computer Science (AREA)
- Textile Engineering (AREA)
- Looms (AREA)
Abstract
Description
Die Erfindung betrifft eine Fangvorrichtung und ein Verfahren zum Halten eines eingetragenen Schussfadens in einer Greiferwebmaschine gemäss Oberbegriff von Anspruch 1 und 6 sowie eine Greiferwebmaschine mit einer derartigen Fangvorrichtung oder ausgerüstet zur Ausführung eines derartigen Verfahrens.The invention relates to a safety gear and a method for holding a registered weft in a rapier according to the preamble of
In herkömmlichen Greiferwebmaschinen wird der Schussfaden mittels eines an einer Greiferstange oder einem flexiblen Band befestigten Bringergreifers in ein Webfach eingetragen und an einer Übergabestelle im mittleren Teil des Webfaches von einem Nehmergreifer übernommen und weiterbefördert. Der Bringergreifer hat die Aufgabe den vorgelegten Schussfaden sicher aufzunehmen, denselben ins Webfach einzutragen und präzise dem Nehmergreifer zuzuführen. Der Nehmergreifer hat die Aufgabe, den Schussfaden weiterzubefördern, bis derselbe eine Freigabeposition ausserhalb des Webfaches erreicht hat. Jeder der Greifer umfasst einen Greiferkopf mit einer Fadenklemme, um den Schussfaden während dem Schusseintrag festzuklemmen. In der Freigabeposition ausserhalb des Webfaches wird die Fadenklemme des Nehmergreifers geöffnet und das darin festgeklemmte Fadenende freigegeben. Damit der Schussfaden gestreckt bleibt, ist bei Greiferwebmaschinen üblicherweise eine Fangleiste vorgesehen, die unmittelbar nach dem Schusseintrag und noch vor dem Webfach geschlossen wird, sowie eine Absaugdüse oder ein Absaugkanal, der das Fadenende aufnimmt und festhält.In conventional rapier looms, the weft thread is introduced into a shed by means of a gripper gripper fastened to a gripper bar or a flexible belt and taken over by a gripper gripper at a transfer point in the middle part of the shed and transported onward. The Bringergreifer has the task to pick up the presented weft safely, enter the same in the shed and precisely feed the gripper rapier. The gripper rapier has the task of forwarding the weft thread until it has reached a release position outside the shed. Each of the grippers includes a rapier head with a thread clamp to clamp the weft during weft insertion. In the release position outside the shed the thread clamp of the gripper rapier is opened and the clamped therein end of the thread released. So that the weft thread remains stretched, rapier looms usually provide a catch strip which is closed immediately after the weft insertion and before the shed, and a suction nozzle or a suction channel, which receives the thread end and holds.
Im Dokument
Bei groben Schussgarnen reicht die Saugströmung herkömmlicher Absaugvorrichtungen und -düsen jedoch nicht immer aus, um das Fadenende während dem Anschlag des Webblattes festzuhalten, da das Fadenende erst nach dem Anschlag des Webblattes durch die Absaugvorrichtung oder -düse aufgenommen wird und die Anschlagbewegung des Webblattes eine Luftströmung erzeugt, die das Fadenende hinter das Webblatt zieht. Dabei besteht die Gefahr, dass das Fadenende hinter dem Webblatt eingewoben wird, und somit das Webfach im Kantenbereich nicht mehr geöffnet werden kann. Beim nächsten Schusseintrag werden dann die Kettfäden im betroffenen Bereich durch den Nehmergreifer zerrissen.In coarse weft yarns, however, the suction flow of conventional suction devices and nozzles is not always sufficient to hold the thread end during the stop of the reed, since the thread end is taken only after the stop of the reed by the suction device or nozzle and the stop movement of the reed an air flow produced, which pulls the thread end behind the reed. There is a risk that the thread end is woven behind the reed, and thus the shed in the edge area can not be opened. At the next weft insertion then the warp threads in the affected area are torn by the taker gripper.
Aufgabe der Erfindung ist es, eine Fangvorrichtung und ein Verfahren zum Halten eines eingetragenen Schussfadens in einer Greiferwebmaschine zur Verfügung zu stellen sowie eine Greiferwebmaschine mit einer derartigen Fangvorrichtung oder ausgerüstet zur Ausführung eines derartigen Verfahrens, mittels welchen auch grobe Schussgarne nach dem Eintrag sicher gehalten werden können.The object of the invention is to provide a safety gear and a method for holding a registered weft yarn in a rapier and a rapier with such a safety gear or equipped to carry out such a method by which even coarse weft yarns can be kept safe after the entry ,
Diese Aufgabe wird erfindungsgemäss durch die in Anspruch 1 definierte Fangvorrichtung, das in Anspruch 6 definierte Verfahren und die in Anspruch 10 definierte Greiferwebmaschine gelöst.This object is achieved in accordance with the invention by the catching device defined in
Die erfindungsgemässen Fangvorrichtung zum Halten eines eingetragenen Schussfadens in einer Greiferwebmaschine mit mindestens einem Greifer, der entlang einer Greiferbahn bewegbar ist, umfasst einen stationär auf der Greiferwebmaschine montierbaren Haltekanal, um ein Fadenende des eingetragenen Schussfadens aufzunehmen und zu halten. Zusätzlich umfasst die Fangvorrichtung eine stationär auf der Greiferwebmaschine montierbare Ablenkdüse, beispielsweise eine Ablenkdüse mit getaktetem Blasstrom, um das Fadenende des eingetragenen Schussfadens zum Haltekanal hin abzulenken. In einer vorteilhaften Ausführungsvariante ist der Haltekanal für den Anschluss einer Saugleitung ausgebildet.The inventive catching device for holding a registered weft thread in a rapier with at least one gripper, which is movable along a gripper track comprises a stationary mounted on the rapier holding channel to receive a yarn end of the inserted weft yarn and hold. In addition, the safety device comprises a stationarily mounted on the rapier loom Ablenkdüse, for example, a Ablenkdüse with clocked Blasstrom to deflect the thread end of the registered weft thread to the holding channel. In an advantageous embodiment, the retaining channel is designed for the connection of a suction line.
In einer vorteilhaften Ausführungsform können der Haltekanal und die Ablenkdüse im Bereich der Greiferbahn montiert werden, zum Beispiel auf gegenüberliegenden Seiten der Greiferbahn. D.h., der Haltekanal und die Ablenkdüse sind so ausgebildet und/oder die Fangvorrichtung so mit Befestigungselementen versehen, dass der Haltekanal und die Ablenkdüse im Bereich der Greiferbahn montierbar sind. In einer weiteren vorteilhaften Ausführungsform kann die Ablenkdüse so montiert werden, dass der Blasstrom derselben quer zur Greiferbahn gerichtet ist. Vorteilhafterweise können die Ablenkdüse und der Haltekanal so montiert werden, dass der Blasstrom der Ablenkdüse teilweise oder ganz vom Haltekanal aufgenommen wird.In an advantageous embodiment, the retaining channel and the deflection nozzle can be mounted in the region of the gripper track, for example on opposite sides of the gripper track. In other words, the retaining channel and the deflecting nozzle are designed and / or the catching device is provided with fastening elements such that the retaining channel and the deflecting nozzle can be mounted in the region of the rapier track. In a further advantageous embodiment, the deflection nozzle can be mounted such that the blowing flow of the same is directed transversely to the gripper track. Advantageously, the deflection nozzle and the retaining channel can be mounted so that the blowing flow of the deflection nozzle is partially or completely absorbed by the retaining channel.
In dem erfindungsgemässen Verfahren zum Halten eines eingetragenen Schussfadens in einer Greiferwebmaschine mit einem Webfach und mindestens einem Greifer, der den Schussfaden entlang einer Greiferbahn in das Webfach einträgt, wird der eingetragene Schussfaden vom Greifer freigegeben und ein Fadenende des eingetragenen Schussfadens von einem stationär auf der Greiferwebmaschine angeordneten Haltekanal aufgenommen und gehalten. Zusätzlich wird das Fadenende des eingetragenen Schussfadens mittels einer Ablenkdüse, die stationär auf der Greiferwebmaschine angeordnet ist, zum Haltekanal hin abgelenkt. In einer vorteilhaften Ausführungsvariante wird das Fadenende des eingetragenen Schussfadens mittels einer Blas- und/oder Saugströmung im Haltekanal gehalten.In the inventive method for holding a registered weft thread in a rapier loom with a shed and at least one gripper, which enters the weft thread along a gripper track in the shed, the registered weft thread is released by the gripper and a yarn end of the inserted weft thread from a stationary on the rapier arranged holding channel and held. In addition, the thread end of the inserted weft thread is deflected by means of a deflection nozzle, which is arranged stationarily on the rapier weaving machine, towards the holding channel. In an advantageous embodiment variant, the thread end of the inserted weft thread is held in the holding channel by means of a blowing and / or suction flow.
In einer vorteilhaften Ausführungsform des Verfahrens wird mittels der Ablenkdüse ein Blasstrom quer zur Greiferbahn erzeugt. In einer weiteren vorteilhaften Ausführungsform des Verfahrens wird das Fadenende des eingetragenen Schussfadens mittels eines Blasstromes der Ablenkdüse in den Haltekanal geblasen und/oder darin gehalten.In an advantageous embodiment of the method, a blowing stream is generated transversely to the gripper track by means of the deflection nozzle. In a further advantageous embodiment of the method, the thread end of the inserted weft thread is blown by means of a blowing flow of the deflection nozzle into the holding channel and / or held therein.
Weiter umfasst die Erfindung eine Geiferwebmaschine mit einer Fangvorrichtung gemäss einer der oben beschriebenen Ausführungsformen oder ausgerüstet zur Ausführung eines Verfahrens gemäss einer der oben beschriebenen Ausführungsformen.Furthermore, the invention comprises a looper with a safety gear according to one of the embodiments described above or equipped for carrying out a method according to one of the embodiments described above.
Die Fangvorrichtung, das Verfahren und die Greiferwebmaschine gemäss vorliegender Erfindung haben den Vorteil, dass auch bei gröberen Schussgarnen die Fadenenden nicht mehr hinter das Webblatt gelangen können. Damit lässt sich speziell mit gröberen Schussgarnen eine bessere Gewebequalität erzielen, als dies auf Greiferwebmaschinen mit herkömmlichen Fangvorrichtungen möglich ist. Darüber hinaus können im Vergleich zu Greiferwebmaschinen mit herkömmlichen Fangvorrichtungen auch die störungsbedingten Stillstandszeiten der Greiferwebmaschine reduziert werden. Weiter vorteilhaft ist, dass Dank der oben beschriebenen Fangvorrichtung und des oben beschriebenen Verfahrens die Herstellungskosten und der Energie- und Wartungsaufwand gegenüber herkömmlichen Fangvorrichtungen für Greiferwebmaschinen gesenkt werden können, da das Sauggebläse und die zwischen Haltekanal und Sauggebläse vorgesehene Filtereinheit verkleinert oder ganz weggelassen werden können, und da die Erzeugung eines gerichteten Blasstromes weniger Energie benötigt als die Erzeugung einer breit gefächerten Saugströmung im Bereich der Greiferbahn. Gleichzeitig kann der Wartungsaufwand für die Filtereinheit gesenkt beziehungsweise ganz vermieden werden.The safety gear, the method and rapier weaving machine according to the present invention have the advantage that even with coarser weft yarns the thread ends can no longer get behind the reed. This makes it possible to achieve a better fabric quality, especially with coarser weft yarns, than is possible on rapier weaving machines with conventional safety devices. In addition, the disturbance-related downtime of the rapier can be reduced compared to rapier with conventional safety gear and the failure. It is also advantageous that thanks to the safety gear described above and the method described above, the manufacturing costs and the energy and maintenance costs compared to conventional safety gear for rapier weaving machines can be reduced because the suction fan and provided between holding channel and suction fan filter unit can be reduced or omitted altogether, and because the generation of a directional blow stream requires less energy than the generation of a wide suction flow in the area of the hook path. At the same time the maintenance of the filter unit can be reduced or avoided altogether.
Die obige Beschreibung von Ausführungsformen dient lediglich als Beispiel. Weitere vorteilhafte Ausführungsformen gehen aus den abhängigen Ansprüchen und der Zeichnung hervor. Darüber hinaus können im Rahmen der vorliegenden Erfindung auch einzelne Merkmale aus den beschriebenen oder gezeigten Ausführungsformen und -varianten miteinander kombiniert werden, um neue Ausführungsformen zu bilden.The above description of embodiments is merely an example. Further advantageous embodiments will become apparent from the dependent claims and the drawings. In addition, in the context of the present invention, individual features of the described or shown embodiments and variants can be combined with each other to form new embodiments.
Im Folgenden wird die Erfindung an Hand des Ausführungsbeispiels und an Hand der Zeichnung näher erläutert. Es zeigen:
- Fig. 1
- ein Ausführungsbeispiel einer Fangvorrichtung gemäss vorliegender Erfindung in einer Greiferwebmaschine von oben, und
- Fig. 2
- eine Schrägansicht des Ausführungsbeispiels aus
Fig. 1 ,
- Fig. 1
- an embodiment of a safety gear according to the present invention in a rapier loom from above, and
- Fig. 2
- an oblique view of the embodiment of
Fig. 1 .
Die
In einer vorteilhaften Ausführungsform sind der Haltekanal 5 und die Ablenkdüse 3, wie in den
In einer vorteilhaften Ausführungsvariante wird das Fadenende des eingetragenen Schussfadens mittels der Ablenkdüse 3 in eine Öffnung 5a des Haltekanals 5 geblasen, beispielsweise indem die Ablenkdüse und der Haltekanal so montiert werden, dass der Blasstrom der Ablenkdüse zum Haltekanal gerichtet ist und/oder teilweise oder ganz vom Haltekanal aufgenommen werden kann. In einer weiteren vorteilhaften Ausführungsvariante ist der Haltekanal 5 für den Anschluss einer Saugleitung ausgebildet, so dass das Fadenende des eingetragenen Schussfadens mittels einer Blas- und/oder Saugströmung in die Öffnung 5a des Haltekanals 5 befördert werden kann. Je nach Ausführungsvariante kann der eingetragene Schussfaden anschliessend mittels der Blas- und/oder Saugströmung im Haltekanal 5 gehalten werden.In an advantageous embodiment, the yarn end of the inserted weft yarn is blown by means of the Ablenkdüse 3 in an opening 5a of the holding channel 5, for example by the Ablenkdüse and the holding channel are mounted so that the blowing of the Ablenkdüse is directed to the holding channel and / or partially or completely from Holding channel can be added. In a further advantageous embodiment, the retaining channel 5 is designed for the connection of a suction line, so that the thread end of the inserted weft thread can be conveyed by means of a blowing and / or suction flow in the opening 5a of the holding channel 5. Depending on the embodiment variant, the inserted weft thread can then be held in the holding channel 5 by means of the blowing and / or suction flow.
Die Greiferwebmaschine kann, wie in den
Ein Ausführungsbeispiel des erfindungsgemässen Verfahrens zum Halten eines eingetragenen Schussfadens in einer Greiferwebmaschine wird im Folgenden an Hand der
In einer vorteilhaften Ausführungsform des Verfahrens wird mittels der Ablenkdüse 3 ein Blasstrom 4 quer zur Greiferbahn 6a erzeugt. In einer weiteren vorteilhaften Ausführungsform des Verfahrens wird das Fadenende des eingetragenen Schussfadens 9 mittels des Blasstromes 4 der Ablenkdüse 3 in den Haltekanal 5 geblasen. In einer vorteilhaften Ausführungsvariante wird das Fadenende des eingetragenen Schussfadens 9 mittels einer Blas- und/oder Saugströmung im Haltekanal 5 gehalten.In an advantageous embodiment of the method, a blowing stream 4 is generated transversely to the hook path 6a by means of the
Weiter umfasst die Erfindung eine Greiferwebmaschine mit einer Fangvorrichtung gemäss einer der oben beschriebenen Ausführungsformen und/oder ausgerüstet zu Ausführen eines Verfahrens gemäss obiger Beschreibung.Furthermore, the invention comprises a rapier loom with a safety gear according to one of the embodiments described above and / or equipped to carry out a method as described above.
Die Fangvorrichtung und das Verfahren gemäss obiger Beschreibung eignen sich zu Halten von feinen und groben Schussgarnen in Greiferwebmaschinen. Dank der Verwendung einer Ablenkdüse kann der Energie- und Wartungsaufwand gegenüber herkömmlichen Fangvorrichtungen für Greiferwebmaschinen, die lediglich mit einem Absaugkanal versehen sind, gesenkt werden.The safety gear and the method according to the above description are suitable for holding fine and coarse weft yarns in rapier weaving machines. Thanks to the use of a deflection nozzle, the energy and maintenance costs can be reduced compared to conventional safety devices for rapier weaving machines, which are provided with only one suction channel.
Claims (10)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP20070119160 EP1927691B1 (en) | 2006-11-29 | 2007-10-24 | Weft holding device and method for a rapier weaving machine |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP06125025 | 2006-11-29 | ||
EP20070119160 EP1927691B1 (en) | 2006-11-29 | 2007-10-24 | Weft holding device and method for a rapier weaving machine |
Publications (2)
Publication Number | Publication Date |
---|---|
EP1927691A1 true EP1927691A1 (en) | 2008-06-04 |
EP1927691B1 EP1927691B1 (en) | 2010-02-17 |
Family
ID=39333253
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP20070119160 Not-in-force EP1927691B1 (en) | 2006-11-29 | 2007-10-24 | Weft holding device and method for a rapier weaving machine |
Country Status (1)
Country | Link |
---|---|
EP (1) | EP1927691B1 (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN110629366A (en) * | 2019-10-10 | 2019-12-31 | 甘雨婷 | Double-thread weaving device for textile weft |
Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0493847A1 (en) * | 1991-01-04 | 1992-07-08 | Picanol N.V. | Device for the stretching of a weft thread in weaving machines |
JPH04300345A (en) * | 1991-03-23 | 1992-10-23 | Howa Mach Ltd | Weft holder of shuttle-lens weaving machine |
JPH0959848A (en) * | 1995-08-11 | 1997-03-04 | Tsudakoma Corp | Device for yarn end treatment of repier loom |
EP1055752A1 (en) * | 1999-05-19 | 2000-11-29 | Tsudakoma Kogyo Kabushiki Kaisha | Method of removing weft yarn end and weft yarn end removing mechanism |
DE20107885U1 (en) * | 2001-05-10 | 2001-10-11 | Dornier Gmbh Lindauer | Holding device for the ends of weft threads in an air jet loom |
EP1508633A1 (en) * | 2003-08-15 | 2005-02-23 | Sultex AG | Jet loom |
-
2007
- 2007-10-24 EP EP20070119160 patent/EP1927691B1/en not_active Not-in-force
Patent Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0493847A1 (en) * | 1991-01-04 | 1992-07-08 | Picanol N.V. | Device for the stretching of a weft thread in weaving machines |
JPH04300345A (en) * | 1991-03-23 | 1992-10-23 | Howa Mach Ltd | Weft holder of shuttle-lens weaving machine |
JPH0959848A (en) * | 1995-08-11 | 1997-03-04 | Tsudakoma Corp | Device for yarn end treatment of repier loom |
EP1055752A1 (en) * | 1999-05-19 | 2000-11-29 | Tsudakoma Kogyo Kabushiki Kaisha | Method of removing weft yarn end and weft yarn end removing mechanism |
DE20107885U1 (en) * | 2001-05-10 | 2001-10-11 | Dornier Gmbh Lindauer | Holding device for the ends of weft threads in an air jet loom |
EP1508633A1 (en) * | 2003-08-15 | 2005-02-23 | Sultex AG | Jet loom |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN110629366A (en) * | 2019-10-10 | 2019-12-31 | 甘雨婷 | Double-thread weaving device for textile weft |
Also Published As
Publication number | Publication date |
---|---|
EP1927691B1 (en) | 2010-02-17 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
DE3319059C2 (en) | ||
DE2845299C2 (en) | Shuttleless rapier weaving machine | |
DE69211933T2 (en) | Method for producing an insert edge in defenseless weaving machines, in particular air weaving machines, and device for carrying out the method | |
EP1340846B1 (en) | Method for interlacing non- or partially-interlaced weft yarn, particularly synthetic filament weft yarn, and weaving loom for carrying out this method | |
DE19611320A1 (en) | Method and device for pneumatically supporting the insertion and tensioning of a weft thread in weaving machines | |
EP1927691B1 (en) | Weft holding device and method for a rapier weaving machine | |
CH671590A5 (en) | ||
EP0562213B1 (en) | Pneumatic selvedge-forming device for looms | |
WO2003076704A2 (en) | Pneumatic thread tensioner and thread handling system | |
DE4000856A1 (en) | THREAD CUTTING THREAD CUTTER DEVICE OF AN AIR WAVING MACHINE | |
EP2021538B1 (en) | Apparatus for forming a selvedge on a gripper weaving machine | |
DE4213754C1 (en) | Device for the pneumatic guiding of turbulent weft ends of an auxiliary fabric strip in air jet weaving machines | |
DE3220064C2 (en) | ||
EP1512782B1 (en) | Weaving loom with a tuck-in device | |
DE3940279C2 (en) | ||
DE4118411C1 (en) | Device for airjet loom which minimises pick waste - including yarn drawing device on auxiliary reed connected to profiled reed on yarn arrival side, etc. | |
EP0527972B1 (en) | Gripper-shuttle loom | |
DE10213639C1 (en) | Method and device for feeding a clamped weft thread to a gripper of a weaving machine | |
EP0228342A1 (en) | Air jet loom | |
DE102021207297B3 (en) | Method for removing an incorrectly inserted weft thread and air-jet weaving machine | |
EP1264921B1 (en) | Device for holding the weft yarn ends in an air jet loom | |
DE102023205630B3 (en) | METHOD FOR FORMING A LOOP-SHAPED SEWING EDGE ON A RAPPER WEAVING MACHINE AND RAPPER WEAVING MACHINE | |
EP1365053B1 (en) | Receiving and retaining device for the catchside end of the weft thread in a weaving machine | |
EP0368799B1 (en) | Loom with a fabric support | |
DE69203500T2 (en) | Device for tensioning the weft end in air jet weaving machines. |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
PUAI | Public reference made under article 153(3) epc to a published international application that has entered the european phase |
Free format text: ORIGINAL CODE: 0009012 |
|
AK | Designated contracting states |
Kind code of ref document: A1 Designated state(s): AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IS IT LI LT LU LV MC MT NL PL PT RO SE SI SK TR |
|
AX | Request for extension of the european patent |
Extension state: AL BA HR MK RS |
|
17P | Request for examination filed |
Effective date: 20081107 |
|
17Q | First examination report despatched |
Effective date: 20081204 |
|
AKX | Designation fees paid |
Designated state(s): BE DE IT |
|
GRAP | Despatch of communication of intention to grant a patent |
Free format text: ORIGINAL CODE: EPIDOSNIGR1 |
|
RAP1 | Party data changed (applicant data changed or rights of an application transferred) |
Owner name: ITEMA (SWITZERLAND) LTD. |
|
GRAS | Grant fee paid |
Free format text: ORIGINAL CODE: EPIDOSNIGR3 |
|
GRAA | (expected) grant |
Free format text: ORIGINAL CODE: 0009210 |
|
AK | Designated contracting states |
Kind code of ref document: B1 Designated state(s): BE DE IT |
|
REF | Corresponds to: |
Ref document number: 502007002850 Country of ref document: DE Date of ref document: 20100401 Kind code of ref document: P |
|
PLBE | No opposition filed within time limit |
Free format text: ORIGINAL CODE: 0009261 |
|
STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: NO OPPOSITION FILED WITHIN TIME LIMIT |
|
26N | No opposition filed |
Effective date: 20101118 |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: IT Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20100217 |
|
BERE | Be: lapsed |
Owner name: ITEMA (SWITZERLAND) LTD. Effective date: 20101031 |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: BE Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20101031 |
|
REG | Reference to a national code |
Ref country code: DE Ref legal event code: R119 Ref document number: 502007002850 Country of ref document: DE Effective date: 20110502 |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: DE Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20110502 |