EP1918437A1 - Procédé et dispositif pour l'insertion du fil de trame - Google Patents

Procédé et dispositif pour l'insertion du fil de trame Download PDF

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Publication number
EP1918437A1
EP1918437A1 EP07112777A EP07112777A EP1918437A1 EP 1918437 A1 EP1918437 A1 EP 1918437A1 EP 07112777 A EP07112777 A EP 07112777A EP 07112777 A EP07112777 A EP 07112777A EP 1918437 A1 EP1918437 A1 EP 1918437A1
Authority
EP
European Patent Office
Prior art keywords
thread
clamping force
weft
during
magnet
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.)
Withdrawn
Application number
EP07112777A
Other languages
German (de)
English (en)
Inventor
Remo D'incau
Marius Bachofen
Davide Dr. Maccabruni
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.)
Itema Switzerland Ltd
Original Assignee
Sultex 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 Sultex AG filed Critical Sultex AG
Priority to EP07112777A priority Critical patent/EP1918437A1/fr
Priority to US11/978,853 priority patent/US7584769B2/en
Priority to JP2007284638A priority patent/JP2008115521A/ja
Publication of EP1918437A1 publication Critical patent/EP1918437A1/fr
Withdrawn legal-status Critical Current

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Classifications

    • DTEXTILES; PAPER
    • D03WEAVING
    • D03DWOVEN FABRICS; METHODS OF WEAVING; LOOMS
    • D03D47/00Looms in which bulk supply of weft does not pass through shed, e.g. shuttleless looms, gripper shuttle looms, dummy shuttle looms
    • D03D47/12Looms 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
    • D03D47/20Constructional features of the thread-engaging device on the inserters
    • D03D47/23Thread grippers
    • DTEXTILES; PAPER
    • D03WEAVING
    • D03DWOVEN FABRICS; METHODS OF WEAVING; LOOMS
    • D03D47/00Looms in which bulk supply of weft does not pass through shed, e.g. shuttleless looms, gripper shuttle looms, dummy shuttle looms
    • D03D47/27Drive or guide mechanisms for weft inserting
    • D03D47/271Rapiers
    • DTEXTILES; PAPER
    • D03WEAVING
    • D03DWOVEN FABRICS; METHODS OF WEAVING; LOOMS
    • D03D47/00Looms in which bulk supply of weft does not pass through shed, e.g. shuttleless looms, gripper shuttle looms, dummy shuttle looms
    • D03D47/27Drive or guide mechanisms for weft inserting
    • D03D47/271Rapiers
    • D03D47/272Rapier bands

Definitions

  • the invention relates to a method and a device for introducing a weft thread into a shed of a rapier weaving machine according to the preamble of claim 1 or preamble of claim 6 and a rapier weaving machine with such a device 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 forwarded.
  • the Bringergreifer has the task to safely pick up the presented weft thread, enter the same in the shed and precisely feed the gripper rapier.
  • Each of the grippers includes a rapier head with a thread clamp to clamp the weft during weft insertion. In automatically clamped thread clamps thread takeover takes place by pulling in or out of the weft thread from preset clamping areas of the respective thread clamps.
  • controlled thread clamps can be used in one or both gripper heads, which is actively opened in the thread takeover the thread clamp of the rapier or that of the gripper rapier is actively closed.
  • An electromagnetically controlled thread clamp with an electromagnet as actuator is for example in the publication EP 0 690 160 A1 described.
  • thread clamp for the Bringergreifer comprises a movable clamping member which is held closed by means of a prestressed spring. To open the clamping part, a magnetizable part of the clamping part is pulled down by the electromagnet, which is arranged below the lower compartment, so that the picking up or transfer of the weft thread takes place with the thread clamp open.
  • the disadvantage of this arrangement is that the structure of the arrangement and the control of the electromagnet are relatively complex, and that the electromagnet requires a relatively high current, which can lead to an undesirable heating of the same.
  • the yarn clamping device disclosed here comprises a linear motor which makes it possible to precisely control the time of release of the thread clamping device, and thus the time for cutting the weft thread.
  • the cutting time can be advanced, so that they are clamped at the beginning of the thread clamp, while coarse weft yarns of the cutting time is delayed, so that they are further drawn into the thread clamp. Since the linear motor of the thread clamping device at a picking rate of 600 shots / minute and must react within less than 1 ms, comparatively strong and correspondingly expensive linear motors are required, which also tend to overheat during operation.
  • the object of the invention is to provide a method and an apparatus for introducing a weft thread into a shed of a rapier loom and a gripper loom with such a device or equipped for carrying out such a method, which is simpler compared to the prior art described above and / or are easier to control.
  • the weft thread is picked up by a bringer rapier; clamped by a thread clamp in the same; registered in the shed by means of the rapier; and taken over by a taker.
  • Said method is characterized in that during the weft insertion, the clamping force of the thread clamp is controlled in Bringergreifer by the clamping force during picking up the weft and / or during the transfer of the weft thread against the clamping force in the intermediate entry phase by means of at least one magnet becomes.
  • the clamping force during picking up the weft thread and / or during the transfer of the weft thread is reduced to a predetermined value, which can be adjusted if necessary, for example by the distance between the at least one magnet and a cooperating with this magnetizable part is changed.
  • the clamping force is typically reduced by at least 10% and at most 98%, or by at least 15% and at most 95% during the picking up of the weft thread and / or during the transfer of the weft thread.
  • the clamping force is reduced during the picking up of the weft thread and / or during the transfer of the weft thread without opening the thread clamp.
  • the time at which the clamping force of the thread clamp is reduced and / or the reduction of the clamping force is canceled, set by the at least one magnet or cooperating with this magnetizable part stationary in the weft thread receiving and / or Transfer is arranged and moved in the direction of movement of the Bringergreifers.
  • the at least one magnet or a magnetizable part cooperating therewith can be arranged on a part of the thread clamp which influences the clamping force and can be displaced with respect thereto in the direction of movement of the bringer rapier.
  • the device according to the invention for introducing a weft thread into a shed of a rapier weaving machine comprises a thread clamp for a bringer rapier and additionally at least one magnet to control the clamping force of the thread clamp during picking up of the weft thread and / or during transfer of the weft thread to a gripper rapier relative to the clamping force in FIG to reduce intermediate entry phase, advantageously to reduce to a predetermined value and / or advantageously without opening the thread clamp during picking up the weft thread and / or during the transfer of the weft thread.
  • the magnet or magnets may be designed and / or arranged and / or controlled in such a way that the thread clamp is not opened during picking up of the weft thread and / or during the transfer of the weft thread.
  • the device may be equipped with a Bringer- and / or Holergreifer.
  • the thread clamp for the Holergreifer with at least one magnet to reduce the clamping force of the thread clamp of the Holergreifers during the transfer of the weft thread against the clamping force in the subsequent entry phase.
  • the magnet or the magnets are in operative connection with the thread clamp, for example by one of the magnets being arranged on a part of the thread clamp which influences the clamping force and / or one of the magnets is stationary outside the gripper in the area of the weft take-up and / or - Transfer is mountable, eg such that the desired reduction of the clamping force can be adjusted by the distance of the magnet from the gripper.
  • At least one of the magnets is designed as a permanent magnet.
  • a permanent magnet can be arranged on a part of the thread clamp which influences the clamping force and / or a permanent magnet outside the gripper, e.g. be on or in the leadership of the rapier and / or gripper head, mountable.
  • the distance between the at least one magnet and a cooperating with this magnetizable part is variable to adjust the clamping force of the thread clamp during picking up the weft thread and / or during the transfer of the weft thread in each case to a predetermined value.
  • the at least one magnet or a magnetizable part cooperating therewith can be mounted stationarily in the region of the weft pick-up and / or transfer and can be displaced in the direction of movement of the picking gripper, or the at least one magnet or a magnetizable part cooperating therewith is connected to one arranged the clamping force affecting part of the thread clamp and with respect to the same in the direction of movement of the Bringergreifers displaced to adjust the time at which the clamping force of the thread clamp is reduced and / or the reduction of the clamping force is canceled.
  • the invention comprises a rapier weaving machine with a device according to one of the above-described variant embodiments and forms and / or equipped for carrying out a method according to the above description.
  • the device and the method according to the present invention and the gripper loom according to the invention have the advantage over controlled thread clamps of the prior art that they are very fast, since the thread clamp for receiving the weft thread and / or for transferring the weft thread need not be opened, but only the clamping force is reduced, and the control of the clamping force takes place virtually without relative movement of the thread clamping parts by magnetic force.
  • the device described above is relatively easy and inexpensive to produce and is also suitable for retrofitting existing rapier.
  • Another advantage lies in non-contact control of the clamping force by magnetic force, which is also effective by the sheet metal parts commonly used in grippers, as well as in the dirt resistance of the device described and the method described.
  • the described device does not contain any protruding from the outside into the shed elements.
  • the Klemmkraftverminderung can be adjusted in a simple manner that the distance between the magnet and a cooperating with this magnetizable part of the device, for example a second magnet, is varied. If permanent magnets are used in the described device and in the method described, then the entire outlay for the power supply, control and wiring, which is necessary in conventional controlled thread clamps for the actuation of electrical actuators, is eliminated.
  • Fig. 1A shows a path diagram in which the movement of a bringer and a rapier in a rapier loom during the weft insertion is shown.
  • the entry direction or the distance traveled in this direction x is plotted as the abscissa, and perpendicular to this the machine rotation angle ⁇ is shown as the ordinate.
  • the bringer and taker rapiers are periodically reciprocated in the picking direction.
  • the Bringergreifer is then accelerated and takes in a path section WPU the weft thread to enter this into the shed.
  • FIG. 1B shows a diagram of the clamping force 14 of a thread clamp of a rapier and a diagram of the clamping force 24 of a thread clamp of a taker rapier in an embodiment according to the present invention.
  • the entry direction or the path x traveled in this direction is plotted as abscissa, and perpendicular thereto the clamping force F is shown as ordinate.
  • Fig. 1B is located directly below Fig. 1A and the same abscissa scale was used as in Fig. 1A, so that corresponding waypoints in Figs. 1A and 1B are vertically superimposed.
  • the weft thread is received by a bringer rapier, for example during a path section WPU; clamped by a thread clamp in the same; registered in the shed by means of the rapier; and taken over by a picker, for example, as shown in Fig. 1A in a path section WT, which may be, for example, in the area of the reversal points of Bringer and Holergreiferberzi.
  • Said method is characterized in that during the weft insertion, the clamping force of the thread clamp is controlled in Bringergreifer by the clamping force during picking up the weft and / or during the transfer of the weft thread against the clamping force in the intermediate entry phase by means of at least one magnet is, for example, according to the course of the clamping force 14 shown in Fig. 1 B, which is shown in the diagram with a solid line.
  • the clamping force of the thread clamp in Holergreifer by during the transfer of the weft thread, the clamping force of the thread clamp in the Holergreifer over the subsequent entry phase by means of at least one magnet is increased or decreased, for example according to the in Fig. 1 B. shown course of the clamping force 24, which is shown in the diagram with dotted line.
  • the thread clamp of the Holergreifers is opened after completion of the weft insertion to release the registered weft, for example, as shown in Fig. 1 B in a path section WR.
  • the clamping force is reduced during the picking up of the weft thread and / or during the transfer of the weft thread without opening the thread clamp.
  • the clamping force during picking up the weft thread and / or during the transfer of the weft thread is reduced in each case to a predetermined value F0, which can be adjusted if necessary, for example by the distance between the at least one magnet and a cooperating with this magnetizable part is changed.
  • F0 predetermined value
  • the clamping force can be reduced, for example, by at least 10% and at most 98%, or by at least 15% and at most 95%.
  • the time at which the clamping force of the thread clamp is reduced and / or the reduction of the clamping force is canceled, set by the at least one magnet or cooperating with this magnetizable part stationary in the weft thread receiving and / or Transfer is arranged and moved in the direction of movement of the Bringergreifers.
  • the at least one magnet or a magnetizable part cooperating therewith can be arranged on a part of the thread clamp which influences the clamping force and can be displaced with respect thereto in the direction of movement of the bringer rapier.
  • Fig. 2 shows a schematic representation of a thread clamp in a conventional Bringergreifer in section.
  • the shown Bringergreifer 10 includes a lower part 11, which may be formed for example of sheet metal, an upper part 12, which may also be formed from sheet metal, and a thread clamp.
  • the thread clamp comprises a support 2, which may for example be formed on the bottom part 11, and a two-armed lever 4, which is pivotally mounted between the lever arms about a rotation axis 5.
  • a biased spring 6 is provided, which acts on the same, and on the other lever arm, a clamping part 4a, which is pressed by the force of the spring 6 on the support 2 to clamp a weft thread 3 between the support 2 and the clamping part 4a ,
  • the thread clamp described above is merely a typical embodiment. Many other embodiments are known from the prior art.
  • the movable part of the thread clamp for example, as in Fig. 2 of EP 0 690 160 A1 shown to be designed as a one-armed lever which is pivotally mounted, for example, at one end by means of a rotation axis or resiliently by means of a leaf spring, or the movable part of the thread clamp is formed partially or as a whole resiliently.
  • the device 1 comprises a thread clamp for a Bringergreifer 10 and additionally at least one magnet 7, 8, the clamping force of the thread clamp during recording of the weft thread and / or during the transfer of the weft thread to a Holergreifer against the clamping force in the intermediate Reduce entry phase.
  • the thread clamp may, for example, as already stated above in the description of FIG. 2, comprise a support 2 and a two-armed lever 4 which is pivotally mounted about a rotation axis 5.
  • a prestressed spring 6 can be provided for generating the clamping force and on the other lever arm a clamping part 4a, which is pressed by the force of the spring 6 on the support 2 to clamp a weft thread 3 between the support 2 and the clamping part 4a ,
  • the yarn clamp described above is, as already mentioned in connection with FIG. 2, only a typical embodiment.
  • the lever may for example also be designed with one arm and, for example, be pivotally mounted at one end by means of a rotation axis or resiliently by means of a leaf spring, or the movable part of the thread clamp is formed partially or as a whole resiliently.
  • the clamping force of the thread clamp can be made adjustable, for example by the bias of the spring is varied.
  • the magnet or magnets 7, 8 are designed and / or arranged and / or controlled such that the thread clamp is not open during the picking up of the weft thread and / or during the transfer of the weft thread.
  • the clamping force of the thread clamp during picking up the weft thread and / or during the transfer of the weft thread to a predetermined value is reduced, which is adjustable if necessary.
  • a corresponding adjusting device will be explained in more detail below in the context of the description of the second embodiment.
  • the magnet or the magnets 7, 8 are in operative connection with the thread clamp, for example, by a first magnetizable part 7, such as an iron part or a magnet, is arranged on a clamping force of the force acting part 4, and a second magnetizable part 8 outside the gripper is stationary mountable in the field of weft pick-up and / or -übergabe, wherein the two magnetizable parts include, for example, to a magnetic circuit containing at least one magnet. If desired, the desired reduction in clamping force can be achieved e.g. be adjusted over the distance of the two magnetizable parts.
  • the at least one magnet 7, 8 is designed as a permanent magnet.
  • a permanent magnet 7 can be attached to a part of the thread clamp which influences the clamping force, e.g. on a lever 4, and / or a permanent magnet 8 outside the gripper, e.g. be mounted on or in the leadership of the rapier or gripper head.
  • Fig. 4 shows a schematic representation of a second embodiment of a device 1 according to the present invention in section.
  • the device 1 comprises a thread clamp for a Bringergreifer and additionally at least one magnet 7, 8, to the clamping force of the thread clamp during recording of the weft thread and / or during the transfer of the weft thread to a Holergreifer against the clamping force in the intermediate entry phase to reduce.
  • the thread clamp may, for example, as already described above in the description of Figures 2 and 3, comprise a support 2 and a two-armed lever 4 which is pivotally mounted about a rotation axis 5. On one of the lever arms can act a force 6, which is generated by a arranged in the gripper return element, such as a spring to press a provided on the other lever arm clamping part 4a on the support 2 and a weft thread 3, 3 'between the support. 2 and clamp the clamping part 4a.
  • the yarn clamp described above is, as already mentioned in connection with FIG. 3, only a typical embodiment. Further embodiments of the thread clamp are listed in the description of FIG. 3.
  • the magnet or magnets are in operative connection with the thread clamp, for example, by a first magnetizable part 7, such as an iron part or a magnet, is arranged on a clamping force of the force acting part 4, and by a second magnetizable Part 8 outside the gripper stationarily in the field of weft pick-up and / or -Germangabe is mounted, wherein in operation, when the gripper is in the range of weft picking and / or transfer, the two magnetizable parts 7, 8 interact and thereby, for example, a magnetic Make circle that contains at least one magnet.
  • the first magnetizable part 7 may, for example, as shown in Fig.
  • a support 2 for the thread clamp to provide a magnetizable spring plate, which is for example mounted on one side and at the same time can be used as a support and as the first magnetizable part 7.
  • a second magnetizable part 8 which is designed as a magnet, in this case, the clamping force of serving as a support spring plate can be reduced.
  • the distance between the at least one magnet 7, 8 and cooperating with this magnetizable part 7, 8 changeable to adjust the clamping force of the thread clamp during picking up the weft thread and / or during the transfer of the weft yarn each to a predetermined value
  • an adjusting device 9 is provided in the device 1, by means of which the distance between the at least one magnet and the cooperating with this magnetizable part can be changed.
  • the adjusting device 9 can be designed manually or with an actuator, for example with an actuator with a linear motor.
  • the required adjustment range typically extends over 5 mm or 1 or 2 cm.
  • a possible actuator can be designed comparatively small and slow, as from a weft insertion to the next enough time for the adjustment is available and the required actuating forces are low.
  • the at least one magnet is designed as a permanent magnet.
  • a permanent magnet 7 can be attached to a part of the thread clamp which influences the clamping force, e.g. be arranged on a lever 4, and / or a permanent magnet 8 outside of the gripper be mounted stationarily in the field of weft pick-up and / or -übergabe, e.g. on or in the guide of the rapier band or rapier head.
  • weft threads of different thicknesses or differently smooth can be optimally held in the thread clamp. Without this setting there is a tendency that a thick weft thread is clamped at the entrance of the thread clamp, where it is kept weak because of the comparatively long lever arm, while a thin weft thread is pulled close to the fulcrum, where he held accordingly strong becomes. In both cases, it can lead to malfunction by the thick weft thread is held too little during the weft insertion, while the thin weft yarn is held too strong when passing to the taker rapier and can tear.
  • the thick Weft 3 as shown in FIG. 4, is further clamped inside the thread clamp, where the clamping force is greater, while the thin weft thread 3 'is clamped at the beginning of the thread clamp, where the clamping force is weaker.
  • the clamping force reductions between the weft entries can be optionally adapted to thick or thin weft threads. In this way, successively different thicknesses and different smooth weft threads can be entered with optimal clamping force.
  • Fig. 5 shows a schematic representation of a third embodiment of a device 1 according to the present invention in section.
  • the device 1 shown in Fig. 5 comprises a thread clamp for a Bringergreifer and additionally at least one magnet 7, 8, the clamping force of the thread clamp during the recording of the weft thread and / or during the transfer of the weft thread to a Holergreifer against the clamping force in the intermediate decrease entry phase.
  • Possible embodiments of the thread clamp have already been explained in the context of the above description of the second embodiment.
  • the magnet or magnets are in operative connection with the thread clamp, for example, by a first magnetizable part 7, such as an iron part or a magnet, is arranged on a clamping force of the force acting part 4, and by a second magnetizable Part 8 outside of the gripper is stationary mountable in the field of weft pick-up and / or transfer, wherein in operation, when the gripper is in the range of weft pickup and / or transfer, the two magnetizable parts cooperate, forming a magnetic circuit, for example the at least one magnet 7, 8 contains.
  • a first magnetizable part 7, such as an iron part or a magnet
  • a second magnetizable Part 8 outside of the gripper is stationary mountable in the field of weft pick-up and / or transfer, wherein in operation, when the gripper is in the range of weft pickup and / or transfer, the two magnetizable parts cooperate, forming a magnetic circuit, for example the at least one magnet 7, 8 contains.
  • the at least one magnet 8 or a magnetizable part 8 cooperating therewith can be mounted stationarily in the area of the weft take-up and / or transfer and, as indicated in FIG. 5 by a double arrow, can be displaced in the direction of movement of the bringer rapier in order to set the time to which the clamping force the thread clamp is reduced and / or the reduction of the clamping force is canceled again.
  • the at least one magnet 7 or a magnetizable part 7 cooperating therewith can be arranged on a part 4 of the thread clamp which influences the clamping force and can be displaced with respect to it in the direction of movement of the bringer rapier in order to set said time.
  • an adjusting device 9 can be provided in the device 1, by means of which the at least one magnet 8 or a cooperating with this magnetizable part 8 can be moved in the direction of movement of the rapier.
  • the adjusting device 9 can be designed manually or with an actuator, for example with an actuator with a linear motor.
  • the required displacements of the at least one magnet or of the magnetizable part interacting therewith are typically 5 mm or 1 or 2 cm.
  • a possible actuator can be designed comparatively small and slow, as from a weft insertion to the next enough time for the adjustment is available and the required actuating forces are low.
  • the at least one magnet is designed as a permanent magnet.
  • a permanent magnet 7 can be attached to a part of the thread clamp which influences the clamping force, e.g. be arranged on a lever 4, and / or a permanent magnet 8 outside of the gripper be mounted stationarily in the field of weft pick-up and / or -übergabe, e.g. on or in the guide of the rapier band or rapier head.
  • the cutting device can be simplified by now all the weft threads can be cut at the same time, since they already on the basis of the above-described setting of the time at which the clamping force of the thread clamp and / or the reduction of the clamping force is canceled, the have desired position in the thread clamp.
  • the above-described setting of the effective time is suitable by moving a magnetizable part in the direction of movement of the gripper for all sorts of magnetically controlled thread clamps, for example, for thread clamps that are fully opened.
  • one or more permanent magnets are used for the control and / or actuation of the thread clamp.
  • FIG. 6 shows an exemplary embodiment of a rapier weaving machine with a device according to one of the embodiments described above and / or equipped for carrying out a method as described above.
  • a bringer rapier 10 and, in the region of the weft take-up and transfer, respectively, a magnetizable part 8.1, 8.2 are visible from the device, which can be designed, for example, as an iron part or magnet.
  • the device may comprise a picker 20 and a thread supply 32, a thread store 33, a thread turret 34 or a thread brake 35 for a weft thread 3 and, if required, a controller 36 and one or more sensors 31.1, 31.2.
  • the device, the method and the rapier as described above combine the advantages of an actively controlled thread clamp with a simple and economical design.

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  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Looms (AREA)
EP07112777A 2006-11-02 2007-07-19 Procédé et dispositif pour l'insertion du fil de trame Withdrawn EP1918437A1 (fr)

Priority Applications (3)

Application Number Priority Date Filing Date Title
EP07112777A EP1918437A1 (fr) 2006-11-02 2007-07-19 Procédé et dispositif pour l'insertion du fil de trame
US11/978,853 US7584769B2 (en) 2006-11-02 2007-10-29 Method and apparatus for the insertion of a weft thread
JP2007284638A JP2008115521A (ja) 2006-11-02 2007-11-01 緯糸を挿入するための方法および装置

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
EP06123401 2006-11-02
EP07112777A EP1918437A1 (fr) 2006-11-02 2007-07-19 Procédé et dispositif pour l'insertion du fil de trame

Publications (1)

Publication Number Publication Date
EP1918437A1 true EP1918437A1 (fr) 2008-05-07

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EP07112777A Withdrawn EP1918437A1 (fr) 2006-11-02 2007-07-19 Procédé et dispositif pour l'insertion du fil de trame

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EP (1) EP1918437A1 (fr)
JP (1) JP2008115521A (fr)

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DE502008001238D1 (de) * 2007-09-10 2010-10-14 Itema Switzerland Ltd Schneidvorrichtung für eine Webmaschine und Verfahren zum Betrieb derselben
JP5410777B2 (ja) * 2009-02-16 2014-02-05 津田駒工業株式会社 インサートレピア
JP2010255147A (ja) * 2009-04-28 2010-11-11 Tsudakoma Corp キャリアレピア
CN102286838B (zh) * 2011-07-21 2013-06-19 经纬纺织机械股份有限公司 径向退绕载纬器及其径向退绕方法
CN103046264A (zh) * 2012-12-18 2013-04-17 苏州展华纺织有限公司 一种一次成型织布喷染机
US9732450B2 (en) * 2013-10-24 2017-08-15 Nv Michel Van De Wiele Giver rapier head, giver rapier, rapier weaving machine and method for inserting a weft thread in such a rapier weaving machine using such a giver rapier head
CN105019109B (zh) * 2015-07-31 2017-02-01 陈仲纪 一种剑杆织机废边省料方法
CN105002636B (zh) * 2015-07-31 2017-03-01 陈仲纪 一种剑杆织机废边料节省方法
TWI732251B (zh) * 2018-09-27 2021-07-01 義大利商桑德森力瑪集團有限公司 用於無梭子紡織機的緯紗切割裝置

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2059455A (en) * 1979-09-29 1981-04-23 Northrop Weaving Machinery Ltd Improvements in or relating to looms with stationary weft supply
EP0690160A1 (fr) * 1994-06-06 1996-01-03 Kabushiki Kaisha Toyoda Jidoshokki Seisakusho Méthode et dispositif d'insertion de trame pour métier à griffes
EP0990723A1 (fr) 1998-09-30 2000-04-05 Icbt Diederichs Dispositif pour l'insertion du fil de trame
EP1020550A1 (fr) 1999-01-12 2000-07-19 Sulzer Textil Ag Dispositif pour séparer un fil de trame devant être inséré dans une foule, ainsi que métier à tisser équipé d'un tel dispositif
US6305434B1 (en) 1998-05-18 2001-10-23 Textilma Ag Gripper and weft insertion device for a rapier loom
EP1338688A1 (fr) * 2002-02-25 2003-08-27 GIVIDI-Italia S.p.A. Pince à fil pour une lance d'une machine à tisser à lances

Family Cites Families (21)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH439161A (de) * 1965-06-25 1967-06-30 Sulzer Ag Webmaschine mit Schussfadenzwischenspeicher
ES343664A1 (es) * 1967-07-13 1968-09-01 Balaguer Golobart Perfeccionamientos en los organos aprehensores de hilos de trama en los elementos insertadores.
CH559794A5 (fr) * 1973-04-27 1975-03-14 Fischer Ag Georg
CH622561A5 (fr) * 1977-11-01 1981-04-15 Loepfe Ag Geb
CH648615A5 (de) * 1980-12-13 1985-03-29 Loepfe Ag Geb Induktiver signalgeber an einer greiferschuetzenwebmaschine.
DE3366208D1 (en) * 1983-04-18 1986-10-23 Rueti Ag Maschf Gripper for inserting a weft thread into a gripper weaving machine
DE3375806D1 (en) * 1983-12-14 1988-04-07 Rueti Ag Maschf Weft inserting device for a needle loom
IT1226865B (it) * 1988-08-19 1991-02-20 Nuovo Pignone Spa Perfezionamenti in una pinza passatrama di condotta per telai tessili senza navetta.
SE8900537D0 (sv) * 1989-02-16 1989-02-16 Iro Ab Styranordning
DE59105505D1 (de) * 1990-09-10 1995-06-22 Rueti Ag Maschf Fadenbremse für Webmaschinen.
DE4306911C1 (de) * 1993-03-05 1993-12-23 Dornier Gmbh Lindauer Schußfadenbremse mit steuerbarer Bremswirkung
IT1260645B (it) * 1993-04-08 1996-04-22 Lgl Electronics Spa Dispositivo di frenatura modulata del filato per apparecchi alimentatori di trama
IT1282898B1 (it) * 1995-09-20 1998-04-01 Mario Gallo Dispositivo per controllare la tensione di un filo.
EP0769580B1 (fr) * 1995-10-17 2002-03-20 Sulzer Textil AG Dispositif de retenue d'un fil pour une griffe d'amenée
DE59705563D1 (de) * 1996-06-07 2002-01-10 Picanol Nv Gebergreifer für eine greiferwebmaschine
BE1011480A3 (nl) * 1997-10-03 1999-10-05 Picanol Nv Gevergrijper voor een grijperweefmachine.
DE59808449D1 (de) * 1998-03-05 2003-06-26 Sultex Ag Rueti Fadenklemme für eine Webmaschine und Webmaschine mit einer solchen Fadenklemme
US6453952B1 (en) * 1998-10-21 2002-09-24 Picanol, N.V. Thread gripper for a rapier of a rapier loom
DE50109401D1 (de) * 2000-10-18 2006-05-18 Iropa Ag Verfahren zum eintragen von schussfäden und fadenliefervorrichtung
US7543610B2 (en) * 2006-06-16 2009-06-09 Sultex Ag Thread clamp for a rapier head
WO2004033778A1 (fr) * 2002-09-20 2004-04-22 Picanol N.V. Lance de transfert pour metier a tisser a lances

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2059455A (en) * 1979-09-29 1981-04-23 Northrop Weaving Machinery Ltd Improvements in or relating to looms with stationary weft supply
EP0690160A1 (fr) * 1994-06-06 1996-01-03 Kabushiki Kaisha Toyoda Jidoshokki Seisakusho Méthode et dispositif d'insertion de trame pour métier à griffes
US6305434B1 (en) 1998-05-18 2001-10-23 Textilma Ag Gripper and weft insertion device for a rapier loom
EP0990723A1 (fr) 1998-09-30 2000-04-05 Icbt Diederichs Dispositif pour l'insertion du fil de trame
EP1020550A1 (fr) 1999-01-12 2000-07-19 Sulzer Textil Ag Dispositif pour séparer un fil de trame devant être inséré dans une foule, ainsi que métier à tisser équipé d'un tel dispositif
EP1338688A1 (fr) * 2002-02-25 2003-08-27 GIVIDI-Italia S.p.A. Pince à fil pour une lance d'une machine à tisser à lances

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