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EP1552048B1 - Procede de maintien d'un fil de trame ; machine a tisser a tuyeres munie d'un dispositif de serrage pour fil de trame, s'utilisant notamment pour mettre ledit procede en oeuvre et cartouche sous forme d'unite modulaire rempla able a inserer dans le tube melangeur d'une machine a tisser a tuyeres - Google Patents

Procede de maintien d'un fil de trame ; machine a tisser a tuyeres munie d'un dispositif de serrage pour fil de trame, s'utilisant notamment pour mettre ledit procede en oeuvre et cartouche sous forme d'unite modulaire rempla able a inserer dans le tube melangeur d'une machine a tisser a tuyeres Download PDF

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Publication number
EP1552048B1
EP1552048B1 EP03750289A EP03750289A EP1552048B1 EP 1552048 B1 EP1552048 B1 EP 1552048B1 EP 03750289 A EP03750289 A EP 03750289A EP 03750289 A EP03750289 A EP 03750289A EP 1552048 B1 EP1552048 B1 EP 1552048B1
Authority
EP
European Patent Office
Prior art keywords
lamellar
mixing tube
jet loom
clamping
clamping parts
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
EP03750289A
Other languages
German (de)
English (en)
Other versions
EP1552048A1 (fr
Inventor
Adnan Wahhoud
Markus Gielen
Dietmar Von Zwehl
Valentin Krumm
Dieter Teufel
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.)
Lindauer Dornier GmbH
Original Assignee
Lindauer Dornier GmbH
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
Priority claimed from DE10244694A external-priority patent/DE10244694B4/de
Priority claimed from DE2002156830 external-priority patent/DE10256830B3/de
Priority claimed from DE10256829A external-priority patent/DE10256829B3/de
Priority claimed from DE2002156876 external-priority patent/DE10256876A1/de
Application filed by Lindauer Dornier GmbH filed Critical Lindauer Dornier GmbH
Publication of EP1552048A1 publication Critical patent/EP1552048A1/fr
Application granted granted Critical
Publication of EP1552048B1 publication Critical patent/EP1552048B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • D—TEXTILES; PAPER
    • D03—WEAVING
    • D03D—WOVEN FABRICS; METHODS OF WEAVING; LOOMS
    • D03D47/00—Looms in which bulk supply of weft does not pass through shed, e.g. shuttleless looms, gripper shuttle looms, dummy shuttle looms
    • D03D47/28—Looms in which bulk supply of weft does not pass through shed, e.g. shuttleless looms, gripper shuttle looms, dummy shuttle looms wherein the weft itself is projected into the shed
    • D03D47/30—Looms in which bulk supply of weft does not pass through shed, e.g. shuttleless looms, gripper shuttle looms, dummy shuttle looms wherein the weft itself is projected into the shed by gas jet
    • D03D47/3026—Air supply systems
    • D03D47/3053—Arrangements or lay out of air supply systems
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H63/00—Warning or safety devices, e.g. automatic fault detectors, stop-motions ; Quality control of the package
    • B65H63/08—Warning or safety devices, e.g. automatic fault detectors, stop-motions ; Quality control of the package responsive to delivery of a measured length of material, completion of winding of a package, or filling of a receptacle
    • B65H63/088—Clamping device
    • D—TEXTILES; PAPER
    • D03—WEAVING
    • D03D—WOVEN FABRICS; METHODS OF WEAVING; LOOMS
    • D03D47/00—Looms in which bulk supply of weft does not pass through shed, e.g. shuttleless looms, gripper shuttle looms, dummy shuttle looms
    • D03D47/28—Looms in which bulk supply of weft does not pass through shed, e.g. shuttleless looms, gripper shuttle looms, dummy shuttle looms wherein the weft itself is projected into the shed
    • D03D47/30—Looms in which bulk supply of weft does not pass through shed, e.g. shuttleless looms, gripper shuttle looms, dummy shuttle looms wherein the weft itself is projected into the shed by gas jet
    • D03D47/3006—Construction of the nozzles
    • D03D47/3013—Main nozzles
    • 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
    • D03D47/34—Handling the weft between bulk storage and weft-inserting means
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2555/00—Actuating means
    • B65H2555/10—Actuating means linear
    • B65H2555/11—Actuating means linear pneumatic, e.g. inflatable elements
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2701/00—Handled material; Storage means
    • B65H2701/30—Handled filamentary material
    • B65H2701/31—Textiles threads or artificial strands of filaments

Definitions

  • the invention relates to a method for holding and releasing a weft thread in the region of the main blowing nozzle of a jet loom, in particular air jet loom, wherein the weft is clamped before its entry in a shed formed by warp sheds in the direction of entry to an injector of the Hauptblasdüse and released shortly before its entry.
  • the invention also relates to a jet loom, in particular air jet loom with multicolor weft insertion for carrying out the method, with at least one Hauptblasdüse comprising an injector with subsequent mixing tube, and with a clamping device for clamping a weft thread in the mixing tube or directly at the outlet opening of the mixing tube.
  • DE 32 00 638 A1 discloses a method and a jet loom of this type as known.
  • the clamping device is arranged in the region of the outlet end of the mixing tube, in which the weft thread passes into the shed.
  • the clamping device may consist of a slide which is displaceable transversely to the longitudinal direction of the mixing tube as a lifting member and clamps the weft thread located in the mixing tube between the passage opening of the slide and the inner wall of the mixing tube.
  • Another embodiment provides a transversely displaceable punch which presses the weft thread against the inner wall of the mixing tube.
  • a further embodiment of the known clamping device is provided, according to which a portion of the mixing tube is formed as an elastic intermediate piece.
  • the intermediate piece is to be compressed by two diametrically opposed lifting members, when they are moved against each other.
  • the weft thread is clamped by the compressed elastic intermediate piece.
  • the weft thread is displaced laterally during clamping, that is no longer in the central longitudinal axis of the mixing tube. Also in the third embodiment, this phenomenon is to be feared because only two lifting members are provided for compressing the elastic intermediate piece, the compression is therefore not strict can be centrally symmetric. A position of the weft thread outside the longitudinal center of the mixing tube prepares difficulties in the subsequent entry of the weft thread in the shed.
  • EP 0 022 226 B1 deals with another known jet loom in which a mechanical clamping device is also provided with a mechanical drive.
  • a mechanical clamping device is also provided with a mechanical drive.
  • a solid support on which slides in the weft thread passes.
  • a spiral spring is arranged, whose inner end is rotated by an axis which is parallel to the axis of the mixing tube. The spiral is thus clamped in a plane transverse to the weft.
  • Her free end presses elastically yielding the weft against the mentioned solid support.
  • the axis which rotates the spiral is driven by means of two rotary levers via a shaft fixedly connected to the machine frame.
  • the known clamping device according to EP 0 022 226 B1 has several weak points. Namely, if the resilient end of the spiral pushes the weft yarn against the solid support surface only with slight pressure, so the yarn is spared. But there is a risk that the resilient end of the spiral will be taken laterally and bent over time. In a more stable design of the resilient end or a solid guide the entire spiral, however, is to be feared that the weft thread is damaged during clamping. In addition, even in this embodiment, a central guidance of the weft thread in the longitudinal axis of the mixing tube is not guaranteed.
  • the invention is therefore the object of the above-mentioned method and said jet loom to modify such that it is possible to keep the weft with as little or no holding air behind the injector in a gentle way and centrally stretched, with a space-saving and possible vibration-free design with a compact multiple arrangement of Hauptblasdüsen and mixing tubes is possible and the holding device works wear-free and reliable over long periods of operation.
  • the invention also includes a specified in the claims 26 to 28 cartridge as a replaceable unit for insertion into the mixing tube of a jet loom.
  • This cartridge according to the invention is based on advantageous structural details that characterize the inventive jet loom.
  • the solution according to the invention with regard to the method thus consists according to claim 1 in a method for holding and releasing a weft thread in the region of the main blowing nozzle of a jet loom, in particular air jet loom, wherein the weft before its entry in a formed by warp shed in the insertion direction after an injector of the main blowing nozzle clamped and only shortly before its entry is released, and wherein the clamping and releasing of the weft thread by the spring against each other laying, aligned in the entry direction of the weft free ends of two lamellar clamping parts, of which at least one lamellar clamping member in its position by controllable means opposite the other lamellar clamping part is adjustable.
  • the inventively provided lamellar clamping parts whose free ends are resiliently against each other and are aligned in the insertion direction of the weft thread, form reliable clamping parts of low mass, which can be controlled inertia and precise.
  • a self-centering effect is achieved, because the weft thread, so to speak, pulls the lamellar clamping parts into the middle of the longitudinal axis of the mixing tube.
  • the lamellar clamping parts are also controlled by simple means. Since the moving masses of the clamping parts are very small, there are no transverse vibrations or other mechanical shocks.
  • the lamellar clamp members may be connected by piezoelectric means.
  • the adjustability can be achieved by the force of at least one acting on a lamellar clamping member electromagnetic means.
  • the two mentioned means for adjusting the lamellar clamping parts allow an exact yet compact design of the control device.
  • this solution according to the invention thus has the already mentioned advantages that come about through the lamellar clamping parts.
  • they are integrated into a pneumatic or hydraulic muscle actuated by a pressure medium.
  • a flexible and elastic pipe section causes the clamping and is actuated from the outside by mechanical members
  • a flexible and elastic member namely the pneumatic or hydraulic muscle
  • the mechanical members namely lamellar clamping parts
  • the pressure medium acts from the outside under pressure on the pneumatic or hydraulic muscle.
  • the pneumatic or hydraulic muscle controlled from the outside under negative pressure and / or is pressurized from the inside with overpressure can also be provided that the pneumatic or hydraulic muscle controlled from the outside under negative pressure and / or is pressurized from the inside with overpressure.
  • the clamping effect is canceled very quickly, so that unnecessary friction phenomena between the weft on the one hand and the lamellar clamping parts or the muscle itself are avoided on the other hand.
  • the method according to the invention corresponding jet loom is specified in the claim 7.
  • This relates to a jet loom, in particular air jet loom with multicolor weft insertion for performing the method according to one of claims 1 to 6, with at least one Hauptblasdüse comprising an injector with subsequent mixing tube, with a clamping device for clamping a weft thread in the mixing tube or directly at the outlet opening of Mixing tube, wherein the clamping device has two blade-like clamping parts whose free, aligned in the insertion direction of the weft threads resiliently against each other and lead the weft thread between them, and with control devices, by the position of at least one of the two lamellar clamping parts relative to the other lamellar clamping part is adjustable.
  • the method according to claim 4 corresponding preferred jet loom according to the invention is the subject of claim 16.
  • This thus comprises a jet loom, with a Hauptblasdüse comprising an injector with subsequent mixing tube, with a clamping device for the weft, which serves as a central closure with a pneumatic or hydraulic muscle is formed and arranged in the mixing tube or directly at the outlet opening of the mixing tube, with a surrounding the pneumatic or hydraulic muscle chamber, which is acted upon by a pressure medium, and with two in the pneumatic or hydraulic hydraulic muscle integrated lamellar clamping parts made of elastic material, between the free, aligned in the entry direction of the weft ends of the weft thread is guided, in such an arrangement that in accordance with the pressurization of the pneumatic or hydraulic muscle this either the spring restoring force of the lamellar clamping parts overcomes and whose free projecting into the muscle ends presses against the weft thread clamping or the lifting of the clamping action under the action of the spring restoring force permits.
  • the design of the lamellar clamping parts will usually be such that the clamping parts assume an extended position parallel to the longitudinal axis of the mixing tube in the uninfluenced state. But if the pneumatic or hydraulic muscle is compressed by a pressure medium, the free ends of the lamellar clamping parts are pressed inwards against the weft. In the simplest case, it is sufficient if only one of the two clamping parts is displaced, but that results in a lateral displacement of the weft thread.
  • claims 16 and 17 are directed to the possibility that the surrounding the pneumatic or hydraulic muscle chamber is formed by the facing ends of two mixing pipe sections, said ends being screwed together by means of a coupling sleeve.
  • the claims 18 to 22 show details, according to which the clamping device can be carried out in the chamber in the form of a replaceable component in which a cartridge cage of the pneumatic or hydraulic muscle is pushed in the form of a tube, which then also the two on the cartridge cage attached lamellar clamping parts covered.
  • the cartridge cage has perforations in the form of longitudinal slots, through which the clamping parts engage inwards and the muscle is compressed under the action of a pressure medium.
  • the cartridge cage has a first and second cone, with which it rests sealingly with the interposition of the hose to corresponding conical inner regions of the first mixing pipe section.
  • Claims 23 to 25 are directed to group together several of the injector, mixing tube and clamping device according to claim 15 units to form a built-in module.
  • stitch and ring channels are formed for supplying the pressure medium and the hydraulic muscle in the built-in module, even with dense summary of these units results in an advantageous and compact control option for the entry of the weft threads and the clamping devices.
  • the claims 26 to 28 are directed to a cartridge as a replaceable unit for insertion into the mixing tube of a jet loom, wherein also advantageous embodiments are listed.
  • the second construction according to the invention of the jet loom opens up the possibility of interchangeably arranging the essential parts of the clamping device, ie the lamellar clamping parts and the pneumatic or hydraulic muscle, on the cartridge cage as carrier.
  • the correspondingly designed component of the cartridge is therefore a manageable valuable spare and individual part, the inventive significance.
  • FIG. 1 and 2 To explain the inventive. Method and the associated jet loom according to a first embodiment of the invention, only the associated clamping device 1 is shown in Figures 1 and 2. It is located in a mixing tube 3.
  • the mixing tube 3 connects to the injector of a Hauptblasdüse, not shown in Figure 1, which is located in the illustration of Figure 1 to the left of the mixing tube.
  • the injector is used to enter a weft thread 2 by means of blowing air in the shed, which is also not shown in Figure 1 and is located to the right of the mixing tube 3. Before entering the shed, the weft thread 2 is clamped by means of the clamping device 1 in the mixing tube 3.
  • the clamping device 1 is arranged between a first mixing pipe section 5 and a second mixing pipe section 6. It has two diametrically opposite on the first mixing tube section 5 arranged lamellar clamping parts 4a, b made of elastic material.
  • the free ends 8a, b of the lamellar clamping parts 4a, b are aligned in the insertion direction of the weft thread according to the directional arrow 7 and clamp the weft thread 2 between the mixing pipe sections 5,6 approximately in the plane of the longitudinal center axis of the mixing tube.
  • Both clamping parts 4a, b are associated with controllable means.
  • the piezoelectric means consist of piezo elements 13a, b, which are connected to the lamellar clamping parts 4a, b.
  • the lamellar parts can also be designed as piezo elements themselves.
  • the piezo elements 13a, b of the respective lamellar clamping part 4a, b are electrically actuated via lines 11a, b and 12a, b for clamping and releasing the weft thread 2.
  • the two lamellar clamping parts 4a, b are enclosed by a chamber 9.
  • the housing 10 of the chamber 9 connects the first mixing pipe section 5 axially with the second mixing pipe section 6.
  • the lines 11 a, b and 12 a, b to the piezo elements 13 a, b are guided through the housing 10.
  • Clamping device 1 between a first mixing pipe section 5 and a second mixing pipe section 6 of the mixing tube 3, wherein the connection takes place axially through the housing 10 of a chamber 9.
  • At the first mixing pipe section 5 are again diametrically opposed to each other two lamellar-shaped clamping members 4 a, b arranged from resilient material.
  • magnetically-energized magnetic means are provided as magnetic coils 14a, b.
  • the operating principle of the clamping device 1 according to FIGS. 3 and 4 is based on the fact that the lamellar clamping parts 4a, b hold the weft thread 2 in a clamping manner due to their spring restoring force when the two magnet coils 14a, b are de-energized (FIG. To release the weft yarn 2, the magnetic forces of the coils 14a, b must overcome the spring restoring force of at least one of the lamellar clamping parts 4a, b and keep the clamping device 1 open for a predetermined period of time.
  • the clamping device 1 thus comprises a mixing tube 3 with a first mixing tube section 5 and a second mixing tube section 6.
  • the two mixing tube sections 5, 6 are axially connected to one another by the housing 10 of a chamber 9.
  • two lamellar clamping parts 4a, b are again arranged on the first mixing pipe section 5.
  • the free ends 8 a, b of the clamping parts 4 a, b protrude in the direction of the weft insertion (directional arrow 7) into the chamber 9.
  • a central closure in the form of a pneumatic or hydraulic muscle 15 is arranged in the chamber 9 and a central closure in the form of a pneumatic or hydraulic muscle 15 is arranged. It consists of a flexible and elastic material and pressure-tight connects the two mixing pipe sections 5 and 6 with each other.
  • the two blade-like clamping parts 4a, b are integrated in the pneumatic or hydraulic muscle and exert on him a spring restoring force that holds the muscle in its initial position. This is shown in Figure 6 and causes the release position in which the weft thread 2 is not clamped.
  • the housing 10 of the chamber 9 furthermore has a pressure medium connection 16 which communicates via pressure medium lines 19, 20 and a directional control valve 17 with a pressure source 18.
  • FIGS. 5 and 6 The illustration of FIGS. 5 and 6 is rather schematic.
  • FIGS. 7a, 7b and 8 show how a clamping device belonging to the invention is realized by technical means.
  • Figure 7a shows a longitudinal section through the Hauptblasdüse with a part 5, which acts as a first mixing pipe section 5 and the second mixing pipe section 6.
  • a separate housing 10 is omitted for the chamber 9. Rather, the chamber for the pneumatic or hydraulic muscle as part of the first mixing pipe section 5 is formed.
  • the second mixing pipe section 6 is a tube on which a coupling sleeve 21 is rotatable and displaceable.
  • the coupling sleeve consists in the illustrated embodiment of a plastic and is provided with a threaded portion on which there is an external thread (at 23). With this external thread, the coupling sleeve 21 engages in a receiving opening 22 of the first mixing pipe section 5, which has an enlarged diameter in this area.
  • the screw connection between the receiving opening 22 and the coupling sleeve 21 is designated.
  • the coupling sleeve 21 has outside a polygonal section, which serves for applying a tool during rotation of the coupling sleeve 21.
  • the Polygonal section can be formed for example by flats 40 on an otherwise cylindrical part, see. Fig. 9.
  • the clamping device is used with the pneumatic or hydraulic muscle already described.
  • the clamping device is designed here in the form of a cartridge. This cartridge consists of the cartridge cage 25, the lamellar clamping parts 4a, b and the tube 31, which serves here as a pneumatic or hydraulic muscle.
  • the cartridge cage 25 initially has a short cylindrical guide collar 26, with which it is guided inside in the first mixing tube section 5. Subsequent to the cylindrical guide collar 26 is followed by a first cone 27, which then merges into an elongated cylindrical central portion 28. To the cylindrical central part, a second cone 29 connects. In the cylindrical central portion 28 diametrically opposite two longitudinal slots 30a, b are excluded. In alignment with these longitudinal slots, the two lamellar clamping parts 4a, b are fastened in the remaining area of the cylindrical guide collar. They consist of resilient metal tongues, in any case of a wear-resistant metallic material.
  • the lamellar clamping parts 4a, b are narrower than the longitudinal slots 30a, b and can thus be pushed inwardly in the direction of the longitudinal central axis of the cartridge cage through the longitudinal slots. However, under the influence of their spring restoring force, the lamellar clamping parts 4a, b assume a straight-line extended position running parallel to the outer circumference of the cylindrical middle part 28.
  • Figure 7b shows that the hose 31 with dissolved clamping device a radial distance from the resilient clamping parts 4a, b complies. This is true at least over most of the width of the clamping parts.
  • the lamellar clamping parts are at most with their longitudinal edges slightly on the hose. Since a flat contact of hose and lamellenartigem clamping part is avoided in this way, even a "sticking" of the lamellar clamping parts on the hose does not materialize. As a result, hysteresis phenomena are avoided, and the lamellar clamping parts can be controlled very accurately in time from the release position to the clamping position and vice versa.
  • the tube 31 for example, a cylindrical piece of silicone tubing, on the first cone, the cylindrical center part and the second cone on the cartridge cage 25 is pushed. It is then located at a radial distance from the lamellar clamping parts 4a, b.
  • the cartridge cage 25 is then inserted - in Figure 7a - in the direction from right to left in the chamber 9 of the first mixing tube section 5 until the cylindrical guide collar engages in a customized cylindrical recess in the first mixing tube section 5.
  • the tube 31 covers the first cone 27 and the second cone 29 and is pressed by this against corresponding conical recesses in the first mixing tube section 5.
  • a contact pressure is achieved by tightening the coupling sleeve 21, which presses the cartridge cage 25 inwards with the interposition of a sealing ring 24.
  • the axial pressing the cartridge cage inwardly into the first mixing tube section causes a sealing compression of the tube 31 in the region of the two cones 27 and 29.
  • the cartridge cage 29 is pressed against the end of the second mixing tube section 6, so that this non-rotatably and immovably in the first Mixture pipe section 5 is held.
  • the clamping device is now ready for operation.
  • the tube 31 is compressed in the chamber 9. He thus applies inwardly to the lamellar clamping parts 4a, b and presses their free ends 8a, b inwardly in the direction of the longitudinal central axis of the mixing tube. A weft thread located in the mixing tube is thereby held in a clamping manner.
  • O-rings are referred to, which allow a sealing insertion into a built-in module 30 of the jet looms.
  • 35 of the injector located in front of the mixing tube is referred to, which is in two parts in the illustrated embodiment.
  • FIGS. 7a, 7b and 8 The advantage of the construction shown in FIGS. 7a, 7b and 8 is that the cartridge consisting of the cartridge cage, the lamellar clamping parts 4a, b and the hose 30 can be quickly removed or replaced at any time. For this purpose, only the coupling sleeve 21 needs to be unscrewed. In the case of clogging by dust, lint or in the case of wear of the lamellar clamping parts can thus be quickly remedied.
  • FIG. 8 shows particularly clearly that the cartridge is a compact and relatively simply constructed component.
  • FIG. 9 shows in a three-dimensional representation how a plurality of units consisting of injector 35, mixing tube 3 and clamping device 1 can be combined in groups. According to FIG. 9, six such units are combined.
  • a built-in module 36 which includes a base part 37 and a mounting plate 38.
  • the base part 37 is provided for this purpose with six insertion holes 43 into which the injectors 35 and the injector facing the beginning of the mixing tube is inserted sealingly.
  • the mixing tube 3 also consists here of the part of the main blowing nozzle and the second mixing pipe section 6 formed as the first mixing pipe section 5.
  • the clamping device 1 in the end region of the first mixing pipe section 5 is inserted in the form of the above-described cartridge with two resilient clamping parts and a pneumatic or hydraulic muscle , Furthermore, it can be seen in FIG. 9 that the coupling sleeves 21 are provided with flats 40, which facilitate the attachment of a tool for rotating the coupling sleeves.
  • Figures 10 and 11 show further details of the built-in modules and their installations, in particular details for the supply of the print media.
  • the embodiment shown is mainly for air jet looms with pneumatic actuation of the clamping device in question.
  • branch channels 39 and annular channels 42 are provided, with which the compressed air or holding air for the weft threads is supplied to the injectors and the mixing tubes.
  • 16 again the already explained with reference to Figures 5 and 6 compressed air connection for the operation of the pneumatic muscle is called.
  • the O-ring 33 is a separation of those air streams to be supplied to the injector, of those that serve to control the clamping device 1.

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  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Quality & Reliability (AREA)
  • Looms (AREA)
  • Lining Or Joining Of Plastics Or The Like (AREA)

Claims (28)

  1. Procédé pour maintenir et libérer un fil de trame (2) dans la zone de la tuyère principale d'une machine à tisser à tuyères, en particulier une machine à tisser à jet d'air, moyennant quoi le fil de trame est serré avant son insertion dans un pas de chaîne formé par des fils de chaîne dans le sens d'insertion après un injecteur de la tuyère principale, caractérisé en ce que le fil de trame (2) n'est libéré que peu de temps avant son insertion, en ce que le serrage et la libération du fil de trame (2) ont lieu par le biais des extrémités libres (8a, b) dirigées dans le sens d'insertion du fil de trame (2) et disposées l'une contre l'autre de manière élastique, de deux pièces de serrage (4a, b) de type lamelle, parmi lesquelles au moins une pièce de serrage de type lamelle (4a, b) est réglable dans sa position par des moyens réglables par rapport à l'autre pièce de serrage de type lamelle(4a, b).
  2. Procédé selon la revendication 1, dans lequel la capacité de réglage est obtenue par la force d'au moins un moyen piézoélectrique relié à une des pièces de serrage de type lamelle (4a, b).
  3. Procédé selon la revendication 1, dans lequel la capacité de réglage est obtenue par la force d'au moins un moyen électromagnétique agissant sur une pièce de serrage de type lamelle (4a, b).
  4. Procédé selon la revendication 1, dans lequel les moyens réglables comprennent un muscle pneumatique ou hydraulique (15) actionné par un agent de pressurisation, moyennant quoi les pièces de serrage de type lamelle (4a, b) sont intégrées dans le muscle (15) et exercent sur celui-ci une force de rappel de ressort, moyennant quoi selon la pressurisation du muscle pneumatique ou hydraulique (15), celui-ci l'emporte sur la force de rappel de ressort des pièces de serrage de type lamelle (4a, b) et comprime de manière serrée leurs extrémités libres (8a, b) se prolongeant dans le muscle (15) contre le fil de trame (2) ou permet l'interruption de l'action de serrage.
  5. Procédé selon la revendication 4, dans lequel l'action de serrage des pièces de serrage de type lamelle (4a, b) a lieu lorsque l'agent de pressurisation agit depuis l'extérieur en surpression sur le muscle pneumatique ou hydraulique (15).
  6. Procédé selon la revendication 5, dans lequel le muscle pneumatique ou hydraulique (15) est soumis à une dépression de l'extérieur et/ou à une surpression de l'intérieur pour supprimer rapidement l'action de serrage.
  7. Machine à tisser à tuyères, en particulier machine à tisser à jet d'air avec une insertion de trame multicolore pour mettre en oeuvre le procédé selon l'une quelconque des revendications 1 à 6, avec au moins une tuyère principale, comprenant un injecteur avec un tube mélangeur (3) raccordé à celui-ci, avec un dispositif de serrage (1) pour serrer un fil de trame (2) dans le tube mélangeur ou immédiatement au niveau de l'ouverture de sortie du tube mélangeur (3), caractérisée en ce que le dispositif de serrage (1) présente deux pièces de serrage de type lamelle (4a, b), dont les extrémités libres (8a, b) orientées dans le sens d'insertion du fil de trame (2) sont disposées l'une contre l'autre de manière élastique et guident entre elles le fil de trame (2), et avec des dispositifs de commande, permettant de régler la position d'au moins une des deux pièces de serrage de type lamelle (4a, b) par rapport à l'autre pièce de serrage de type lamelle (4a, b).
  8. Machine à tisser à tuyères selon la revendication 7, dans laquelle un dispositif de commande magnétique est affecté à au moins une pièce de serrage de type lamelle (4a, b).
  9. Machine à tisser à tuyères selon la revendication 7, dans laquelle au moins une pièce de serrage de type lamelle (4a, b) est conçue en tant qu'élément piézoélectrique.
  10. Machine à tisser à tuyères selon la revendication 7, dans laquelle les pièces de serrage de type lamelle (4a, b) sont disposées entre deux sections de tube mélangeur (5, 6) d'un tube mélangeur (3).
  11. Machine à tisser à tuyères selon la revendication 7, dans laquelle les pièces de serrage de type lamelle (4a, b) sont disposées de manière diamétralement opposée avec une extrémité libre à l'ouverture de sortie du tube mélangeur / de la section de tube mélangeur (5
    ou 6).
  12. Machine à tisser à tuyères selon la revendication 10, dans laquelle les pièces de serrage de type lamelle (4a, b) sont entourées d'une chambre (9) d'un boîtier (10) reliant de manière axiale les sections de tube mélangeur (5, 6) l'une avec l'autre.
  13. Machine à tisser à tuyères selon la revendication 7, dans laquelle les pièces de serrage de type lamelle (4a, b) sont composées d'un matériau métallique résistant à l'usure.
  14. Machine à tisser à tuyères selon l'une quelconque des revendications 7 à 13, dans laquelle les pièces de serrage de type lamelle (4a, b) sont composées d'un matériau magnétisable résistant à l'usure.
  15. Machine à tisser à tuyères selon la revendication 7, dans laquelle le dispositif de serrage (1) pour le fil de trame (2) comprend un obturateur central avec un muscle pneumatique ou hydraulique (15), moyennant quoi une chambre (9) entourant le muscle pneumatique ou hydraulique (15) est prévue, laquelle peut être alimentée par un agent de pressurisation, moyennant quoi les deux pièces de serrage de type lamelle (4a, b) en matériau élastique sont intégrées dans le muscle pneumatique ou hydraulique (15), et d'une telle manière que selon la pressurisation du muscle pneumatique ou hydraulique (15), celui-ci l'emporte sur la force de rappel de ressort des pièces de serrage de type lamelle (4a, b) et comprime de manière serrée leurs extrémités libres (8a, b) se prolongeant dans le muscle (15) contre le fil de trame (2) ou permet l'interruption de l'action de serrage sous l'effet de la force de rappel de ressort.
  16. Machine à tisser à tuyères selon la revendication 15, dans laquelle la chambre (9) entourant le muscle pneumatique ou hydraulique est formée par une région d'extrémité de diamètre agrandi de la première section de tube mélangeur (5) et est reliée de manière amovible en fonctionnement à la seconde section de tube mélangeur (6).
  17. Machine à tisser à tuyères selon la revendication 16, avec un manchon d'accouplement (21) disposé de manière orientable sur la seconde section de tube mélangeur (6), lequel manchon se met en prise avec un raccord à vis (23) dans une ouverture de réception (22) dans la région d'extrémité de la première section de tube mélangeur (5).
  18. Machine à tisser à tuyères selon l'une quelconque des revendications 15 à 17, avec un composant remplaçable sous forme de cartouche, qui présente le muscle pneumatique ou hydraulique et les pièces de serrage de type lamelle (4a, b).
  19. Machine à tisser à tuyères selon la revendication 18, avec un logement de cartouche (25) sous forme d'un manchon de section transversale annulaire comme corps de base de la cartouche, avec des perforations dans la paroi du logement de cartouche (25) pour insérer à travers vers l'intérieur les pièces de serrage de type lamelle (4a, b) se trouvant sur le logement de cartouche (25), et avec un muscle pneumatique ou hydraulique sous la forme d'un tuyau flexible (31) recouvrant les pièces de serrage de type lamelle (4a, b) se trouvant sur le logement de cartouche (25).
  20. Machine à tisser à tuyères selon la revendication 19, dans laquelle les perforations dans la paroi du logement de cartouche (25) sont conçues en tant que fentes oblongues (30a, b).
  21. Machine à tisser à tuyères selon la revendication 19 ou 20, avec un contour longitudinal du logement de cartouche (25), dans lequel un premier cône (27), suivi d'une pièce centrale cylindrique (28) présentant des perforations pour les pièces de serrage de type lamelle (4a, b) et enfin un second cône (29) sont contigus à un épaulement de guidage cylindrique (26) dans le sens d'insertion (7) du fil de trame (2), moyennant quoi l'épaulement de guidage cylindrique (26) est mis en prise dans un alésage cylindrique adapté de la première section de tube mélangeur (5) et les premier et second cônes (27, 29) sont poussés contre les régions internes coniques adaptées de la première section de tube mélangeur (5) sous la couche intermédiaire du tuyau flexible (31).
  22. Machine à tisser à tuyères selon la revendication 21, dans laquelle le logement de cartouche (25) dans la région de son second cône (29) est conçu de telle sorte que l'enfoncement axial par le manchon d'accouplement (21) du logement de cartouche (25) dans l'ouverture de réception (22) de la première section de tube mélangeur (5) entraîne simultanément la mise en place et la fermeture étanche en fonctionnement de la seconde section de tube mélangeur (6) par rapport à la première section de tube mélangeur (5).
  23. Machine à tisser à tuyères selon l'une quelconque des revendications 15 à 22, dans laquelle une pluralité d'unités composées de l'injecteur (35), du tube mélangeur (3) et du dispositif de serrage (1) sont regroupées en un module de montage (36).
  24. Machine à tisser à tuyères selon la revendication 23 avec des modules de montage (36) parmi lesquels chacun comprend une pièce formant socle (37) avec des alésages d'insertion (43) dans lesquels les injecteurs et/ou les extrémités côté injecteur des tubes mélangeurs (3) sont insérés de manière étanche, ainsi qu'une plaque de fixation (38), moyennant quoi la plaque de fixation (38) s'étend le long des tubes mélangeurs (3).
  25. Machine à tisser à tuyères selon la revendication 24 avec des canaux de raccordement et de ceinture (39, 42) dans la pièce formant socle (37) et/ou dans l'injecteur (35) pour amener l'agent de pressurisation jusqu' à l'injecteur (35) et jusqu'au muscle hydraulique (15).
  26. Cartouche formant composant remplaçable à disposer dans le tube mélangeur d'une machine à tisser à tuyères, en particulier une machine à tisser à jet d'air, moyennant quoi la cartouche est conçue en tant que dispositif de serrage (1) pour serrer le fil de trame (2) avec un logement de cartouche (25) sous forme d'un manchon de section transversale annulaire comme corps de base de la cartouche, avec des perforations dans la paroi du logement de cartouche (25) pour insérer à travers vers l'intérieur des pièces de serrage de type lamelle (4a, b) élastiques se trouvant sur le logement de cartouche (25), et avec un muscle pneumatique ou hydraulique sous la forme d'un tuyau flexible (31) recouvrant les pièces de serrage de type lamelle (4a, b) se trouvant sur le logement de cartouche (25), lequel tuyau flexible est conçu de telle sorte que lorsque la cartouche est à l'état monté, selon la pressurisation du tuyau flexible (31) par un agent de pressurisation, celui-ci l'emporte sur la force de rappel de ressort des pièces de serrage de type lamelle (4a, b) et comprime de manière serrée leurs extrémités libres (8a, b) se prolongeant dans le muscle contre le fil de trame (2) ou permet l'interruption de l'action de serrage sous l'effet de la force de rappel de ressort.
  27. Cartouche selon la revendication 26 avec un contour longitudinal du logement de cartouche (25), dans lequel un premier cône (27), suivi d'une pièce centrale cylindrique. (28) présentant des perforations pour les pièces de serrage de type lamelle (4a, b) et enfin un second cône (29) sont contigus à un épaulement de guidage cylindrique (26) dans le sens d'insertion (7) du fil de trame (2), moyennant quoi l'épaulement de guidage cylindrique (26) ainsi que les premier et second cônes (27, 29) sont conçus de manière à agir conjointement avec des surfaces opposées correspondantes en se centrant dans une section de tube mélangeur (5) de la machine à tisser à tuyères - ou en formant un joint étanche sous la couche intermédiaire du tuyau flexible (31).
  28. Cartouche selon la revendication 26 ou 27, dans laquelle les extrémités libres (8a, b) des éléments de serrage élastiques (4a, b) se trouvent à distance du tuyau flexible (31) lorsque le dispositif de serrage (1) est à l'état suspendu.
EP03750289A 2002-09-18 2003-08-28 Procede de maintien d'un fil de trame ; machine a tisser a tuyeres munie d'un dispositif de serrage pour fil de trame, s'utilisant notamment pour mettre ledit procede en oeuvre et cartouche sous forme d'unite modulaire rempla able a inserer dans le tube melangeur d'une machine a tisser a tuyeres Expired - Lifetime EP1552048B1 (fr)

Applications Claiming Priority (11)

Application Number Priority Date Filing Date Title
DE10243404 2002-09-18
DE10243404 2002-09-18
DE10244694 2002-09-24
DE10244694A DE10244694B4 (de) 2002-09-18 2002-09-24 Verfahren zum Halten eines Schussfadens im Bereich einer Hauptdüse einer Düsenwebmaschine sowie Düsenwebmaschine zur Durchführung des Verfahrens
DE2002156830 DE10256830B3 (de) 2002-12-04 2002-12-04 Verfahren zum Halten und Freigeben eines Schussfadens im Bereich der Hauptdüse einer Düsenwebmaschine, insbesondere Luftdüsenwebmaschine und Luftdüsenwebmaschine zur Durchführung des Verfahrens
DE10256829 2002-12-04
DE10256876 2002-12-04
DE10256830 2002-12-04
DE10256829A DE10256829B3 (de) 2002-12-04 2002-12-04 Verfahren zum Halten und Freigeben eines Schussfadens im Bereich der Hauptdüse einer Düsenwebmaschine, insbesondere Luftdüsenwebmaschine und Luftdüsenwebmaschine zur Durchführung des Verfahrens
DE2002156876 DE10256876A1 (de) 2002-12-04 2002-12-04 Verfahren zum Halten und Freigeben eines Schussfadens im Bereich der Hauptdüse einer Düsenwebmaschine, insbesondere Luftdüsenwebmaschine und Luftdüsenwebmaschine zur Durchführung des Verfahrens
PCT/DE2003/002859 WO2004029347A1 (fr) 2002-09-18 2003-08-28 Procede de maintien d'un fil de trame ; machine a tisser a tuyeres munie d'un dispositif de serrage pour fil de trame, s'utilisant notamment pour mettre ledit procede en oeuvre et cartouche sous forme d'unite modulaire remplaçable a inserer dans le tube melangeur d'une machine a tisser a tuyeres

Publications (2)

Publication Number Publication Date
EP1552048A1 EP1552048A1 (fr) 2005-07-13
EP1552048B1 true EP1552048B1 (fr) 2007-03-14

Family

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Application Number Title Priority Date Filing Date
EP03750289A Expired - Lifetime EP1552048B1 (fr) 2002-09-18 2003-08-28 Procede de maintien d'un fil de trame ; machine a tisser a tuyeres munie d'un dispositif de serrage pour fil de trame, s'utilisant notamment pour mettre ledit procede en oeuvre et cartouche sous forme d'unite modulaire rempla able a inserer dans le tube melangeur d'une machine a tisser a tuyeres

Country Status (7)

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EP (1) EP1552048B1 (fr)
JP (1) JP3983787B2 (fr)
AT (1) ATE356900T1 (fr)
AU (1) AU2003269684A1 (fr)
BR (1) BR0306438A (fr)
DE (2) DE50306806D1 (fr)
WO (1) WO2004029347A1 (fr)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102006025968B3 (de) * 2006-06-02 2007-11-29 Lindauer Dornier Gmbh Verfahren zum Klemmen eines Schussfadens in einer Düsenwebmaschine, insbesondere Luftdüsenwebmaschine, Klemmeinrichtung und Düsenwebmaschine
ITMI20090336A1 (it) 2009-03-06 2010-09-07 Promatech Spa Ugello di lancio con mezzi di ritegno di trama per un telaio tessile ad aria.
CN107900742B (zh) * 2017-12-27 2023-11-21 上海润美包装材料有限公司 用于夹持化妆品粉饼盒的夹具
CN117721575B (zh) * 2024-01-26 2024-11-05 无锡长江精密纺织有限公司 一种用于喷气织机的辅助喷嘴装置

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH638250A5 (de) * 1979-07-10 1983-09-15 Rueti Te Strake Bv Duesenwebmaschine.
CH649103A5 (de) * 1981-01-13 1985-04-30 Rueti Te Strake Bv Schuetzenlose webmaschine.
BE1000703A4 (nl) * 1987-06-29 1989-03-14 Picanol Nv Draadklem.
BE1014192A3 (nl) * 2001-05-21 2003-06-03 Picanol Nv Inrichting en werkwijze voor het inbrengen van inslagdraden bij een weefmachine, alsmede daardklem daarbij aangewend.

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Publication number Publication date
WO2004029347A1 (fr) 2004-04-08
EP1552048A1 (fr) 2005-07-13
DE10393831D2 (de) 2005-08-11
BR0306438A (pt) 2004-10-26
AU2003269684A1 (en) 2004-04-19
DE50306806D1 (de) 2007-04-26
JP3983787B2 (ja) 2007-09-26
ATE356900T1 (de) 2007-04-15
JP2005539162A (ja) 2005-12-22

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