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

• Jet loom with clamping device for the weft thread in particular for carrying out the method, and cartridge as an exchangeable structural unit for insertion into the mixing tube of a jet loom
• the invention relates to a method for holding and releasing a weft thread in the area of the main blowing nozzle of a jet loom, in particular an air jet loom, wherein the weft thread is clamped in the insertion direction after an injector of the main blowing nozzle in a loom formed by warp threads and is only released shortly before its entry.
• the invention also relates to a jet loom, in particular air jet loom with multi-colored weft insertion for carrying out the method, with at least one main blowing nozzle, comprising an injector with a 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.
• a mixing tube connects to the main blowing nozzle and contains a clamping device for clamping the weft thread.
• 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 can consist of a slide which is displaceable transversely to the longitudinal direction of the mixing tube as a lifting element 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 version provides a transversely displaceable stamp which presses the weft thread against the inner wall of the mixing tube.
• a partial area of the mixing tube is designed as an elastic intermediate piece.
• the intermediate piece is to be pressed together by two diametrically opposite lifting members when they are moved against each other.
• the weft thread is pinched by the compressed elastic intermediate piece.
• the weft thread is displaced laterally during the clamping, and is therefore no longer located in the central longitudinal axis of the mixing tube.
• This phenomenon is also to be feared in the third embodiment, because only two lifting members are provided for compressing the elastic intermediate piece, so the compression is not strict can be centrally symmetrical.
• a position of the weft thread outside the longitudinal center of the mixing tube causes difficulties in the subsequent insertion of the weft thread into the shed.
• EP 0 022 226 B1 deals with another known jet loom, in which a mechanical clamping device with a mechanical drive is also provided.
• a mechanical clamping device with a mechanical drive is also provided.
• a spiral spring is arranged, the inner end of which is rotated by an axis which runs parallel to the axis of the mixing tube. The spiral is thus braced across the weft in one plane. Its free end resiliently presses the weft thread against the fixed support mentioned.
• the axis that rotates the spiral is driven by two rotary levers via a shaft that is firmly connected to the machine frame. With this clamping device, the weft thread is held after completion of the weft insertion and before the inserted weft thread is cut off and released again at the beginning of the next weft insertion.
• the known clamping device according to EP 0 022 226 B1 has various weak points. If the resilient end of the spiral presses the weft thread against the fixed contact surface only with slight pressure, the thread is protected. But there is a risk that the resilient end of the spiral will be carried laterally and bent in the long run. With a more stable design of the resilient end or a solid guidance of the entire spiral, on the other hand, there is a fear that the weft thread will be damaged during clamping. In addition, a central guidance of the weft thread in the longitudinal axis of the mixing tube is not guaranteed in this embodiment either. Either the weft thread must be in constant contact with the support so that it is constantly exposed to sliding and abrasion stress.
• the invention is therefore based on the object of modifying the aforementioned method and the jet weaving machine in such a way that it is possible to keep the weft thread behind the injector in a gentle and central manner with as little or no holding air, with a space-saving and as possible vibration-free design with a compact multiple arrangement of main blowing nozzles and mixing tubes is possible and the holding device works reliably and without wear over longer operating times.
• a second solution to the stated problem is the subject of claim 4 with respect to the method.
• the advantageous embodiments belonging to this second procedural solution are set out in claims 5 and 6.
• a first solution to the stated problem is contained in claim 7.
• Advantageous embodiments of this first jet loom according to the invention are the subject of claims 8 to 15.
• a further jet weaving machine according to the invention solves the problem from claim 16. This includes the advantageous refinements according to claims 17 to 26.
• the invention also includes a cartridge specified in claims 27 to 30 as a replaceable structural unit for insertion into the mixing tube of a jet loom.
• This cartridge according to the invention is based on advantageous structural details which characterize the second jet loom according to the invention.
• the first 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, the weft thread before it is inserted into a shed formed by warp threads in the entry direction after an injector of the main blowing nozzle is clamped and released shortly before its entry, and wherein the clamping and releasing of the weft thread takes place through the resiliently opposing free ends of two lamella-like clamping parts aligned in the insertion direction of the weft thread, of which at least one lamella-like clamping part is in its position by controllable means is adjustable compared to the other lamella-like clamping part.
• the lamella-like clamping parts provided according to the invention form reliable clamping parts of low mass, which can be controlled precisely and with little inertia.
• they are stressed in their longitudinal direction and thus statically favorable, so that they can exert a considerable clamping force even with a light design.
• an alignment in the longitudinal direction of the weft thread has a self-centering effect because the weft thread pulls, so to speak, even the lamellar clamping parts into the center of the longitudinal axis of the mixing tube.
• the lamellar clamping parts can also be controlled with simple means. Since the moving masses of the clamping parts are very small, there are no transverse vibrations or other mechanical shocks. To control them, the lamella-like clamping parts can be connected to piezoelectric means. Or the adjustability can be achieved by the force of at least one electromagnetic means acting on a lamellar clamping part.
• the two mentioned means for adjusting the lamella-like clamping parts allow an exact, yet compact design of the control device.
• the second solution according to the invention with regard to the method according to claim 4, consists in a method for holding and releasing a weft thread in the area of the main blowing nozzle of a jet loom, in particular air jet loom, the weft thread before it is inserted into a shed formed by warp threads in entry directions after an injector of the main blowing nozzle is clamped and only released shortly before its entry, and wherein the weft thread is clamped and released by the ends aligned in the entry direction of the weft thread of two lamella-like clamping parts, which are integrated in a pneumatic or hydraulic muscle actuated by a pressure medium and on this one Exercise spring restoring force, which, depending on the pressure applied to the pneumatic or hydraulic muscle, either overcomes the spring restoring force of the lamellar clamping parts and their free force into the muscle protruding ends press against the weft or allow the clamping effect to be released.
• This second solution according to the invention thus also has the advantages already mentioned, which are brought about by the lamella-like clamping parts. In this case, however, they are integrated into a pneumatic or hydraulic muscle actuated by a pressure medium. While in the known clamping device mentioned at the beginning, a flexible and elastic pipe section effects the clamping and is actuated from the outside by mechanical links, the invention provides that a flexible and elastic link, namely the pneumatic or hydraulic muscle, the mechanical links, namely the lamellar clamping parts, adjusted when a pressure medium acts on the muscle.
• the control by means of a pressure medium results in further advantages with regard to the control of the entire machine, in particular in air jet weaving machines, in which compressed air is available in any case.
• the pressure medium acts from the outside under excess pressure on the pneumatic or hydraulic muscle.
• the pneumatic or hydraulic muscle is controlled under negative pressure from the outside and / or is subjected to positive pressure from the inside.
• the clamping action is released very quickly, so that unnecessary friction phenomena between the weft thread on the one hand and the lamellar clamping parts or the muscle itself are avoided.
• the jet loom corresponding to the first method according to the invention is specified in claim 7.
• This relates to a jet loom, in particular air jet loom with multi-colored weft insertion for carrying out the method according to one of claims 1 to 3, with at least one main blowing nozzle, comprising an injector with a subsequent mixing tube, with a clamping device for clamping a weft thread in the mixing tube or directly at the outlet opening of the Mixing tube, the clamping device having two lamella-like clamping parts, the free ends of which, aligned in the direction of entry of the weft thread, resiliently lie against one another and guide the weft thread between them, and with control devices by means of which the position of at least one of the two lamella-like clamping parts relative to the other lamella-like clamping part is adjustable.
• the second jet loom according to the invention which corresponds to the method according to claim 4, is the subject of claim 16 Jet loom, in particular air jet loom with multi-colored weft insertion for carrying out the method according to one of claims 4 to 7, with a main blowing nozzle, comprising an injector with a subsequent mixing tube, with a clamping device for the weft thread, which is designed as a central closure with a pneumatic or hydraulic muscle and in the mixing tube or is arranged directly at the outlet opening of the mixing tube, with a chamber surrounding the pneumatic or hydraulic muscle, which can be acted upon by a pressure medium, and with two lamellar clamping parts made of resilient material integrated into the pneumatic or hydraulic muscle, between their free, in the direction of entry of the weft aligned ends of the weft is guided, in such an arrangement that, depending on the pressurization of the pneumatic or hydraulic muscle, this either the spring restoring force of the lamel overcomes len-like clamping parts and their free ends protruding into the muscle presses against the
• the advantages of a pneumatic or hydraulic muscle that is to say an elastic wall section of the mixing tube, are associated with control by a pressure medium, the advantages of being integrated into the pneumatic or hydraulic muscle lamellar clamping parts are added.
• the direct interaction with the weft takes place via the lamellar clamping parts, which are best able to cope with wear due to friction. They can be controlled very advantageously by means of the pneumatic or hydraulic muscle, a combined overall control using compressed air alone being possible, particularly in the case of control by means of compressed air in the air jet weaving machine, and leading to a compact and not complex construction.
• the design of the lamellar clamping parts will generally be such that the clamping parts assume an extended position parallel to the longitudinal axis of the mixing tube in the unaffected state. But if the pneumatic or hydraulic muscle is compressed by a pressure medium, the free ends of the lamella-like clamping parts are pressed inwards against the weft thread. In the simplest case, it is sufficient if only one of the two clamping parts is displaced, although there is a lateral displacement of the weft thread. The free ends of the lamellar clamping parts come into contact almost point by point, with the weft thread between them. Since the lamellar clamping parts are made of resilient material, their pressure on the weft remains resilient, so that excessive stress on the weft is excluded.
• Claims 16 and 17 are directed to the possibility that the chamber surrounding the pneumatic or hydraulic muscle is formed by the mutually facing ends of two mixing tube sections, these 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 an interchangeable component, in which the pneumatic or hydraulic muscle in the form of a hose is pushed onto a cartridge cage, which then also the two on the cartridge cage attached slat-like clamping parts covered.
• the cartridge cage has openings in the form of longitudinal slots through which the clamping parts reach inwards and the muscle is compressed under the action of a pressure medium.
• the cartridge cage has a first and a second cone, with which it lies sealingly against the corresponding conical inner regions of the first mixing tube section with the interposition of the hose.
• the cartridge cage is stretched axially in its longitudinal direction against the first mixing tube section, whereby at the same time the operational securing of the position and sealing of the second mixing tube section with respect to the first mixing tube section is achieved.
• Claims 23 to 25 are aimed at combining several of the units consisting of injector, mixing tube and clamping device according to claim 15 in groups to form an installation module.
• an advantageous and compact control option for the insertion of the weft threads and the clamping devices results even with a dense combination of these units.
• claims 26 to 29 are directed to a cartridge as an exchangeable structural unit for insertion into the mixing tube of a jet weaving machine, advantageous configurations also being listed.
• the second design of the jet loom according to the invention 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 a carrier.
• the correspondingly designed component of the cartridge is therefore a valuable spare part and individual part which can be handled by itself and which is of inventive importance.
• Fig. 1 shows a first embodiment of the invention, wherein a weft is held clamped.
• FIG. 2 is a representation corresponding to FIG. 1, but the clamping device is released.
• Fig. 3 shows another embodiment of the invention, again showing the clamping position.
• FIG. 4 is a representation corresponding to FIG. 3 with the clamping device released.
• Fig. 5 has a schematic representation of that embodiment of the invention, in which the clamping device is actuated by a pressure medium.
• Fig. 6 corresponds to the diagram of Figure 5, but with the clamping device released.
• FIG. 7a shows in longitudinal section a clamping device corresponding to FIGS. 5 and 6 in a detailed technical design.
• Fig. 7b is a cross section along the line B-B in Fig. 7a
• FIGS. 7a and 7b shows a detail from FIGS. 7a and 7b in an enlarged perspective view.
• Fig. 9 shows the grouping of several from injector, mixing tube and
• Clamping device existing units to a built-in module.
• Fig. 10 is a vertical partial longitudinal section belonging to Fig. 9;
• FIG. 11 shows a partial longitudinal section through a built-in module, based on FIG. 9.
• FIGS. 1 and 2 To explain the method according to the invention and the associated jet loom according to a first embodiment of the invention, only the associated clamping device 1 is shown in FIGS. 1 and 2. It is located in a mixing tube 3.
• the mixing tube 3 connects to the injector of a main blowing nozzle, not shown in FIG. 1, which is located to the left of the mixing tube in the illustration in FIG.
• the injector is used to insert a weft thread 2 into the shed using blown air, which is also not shown in FIG. 1 and is located to the right of the mixing tube 3. Before the entry into the shed, the weft thread 2 is held in the mixing tube 3 by means of the clamping device 1.
• the clamping device 1 is arranged between a first mixing tube section 5 and a second mixing tube section 6. It has two lamellar clamping parts 4a, b, which are arranged diametrically opposite one another on the first mixing tube section 5 and are made of resilient material.
• the free ends 8a, b of the lamella-like clamping parts 4a, b are aligned in the entry direction of the weft thread in accordance with the directional arrow 7 and clamp the weft thread 2 between the mixing tube sections 5, 6 approximately in the plane of the longitudinal center axis of the mixing tube 3.
• Controllable means are assigned to both clamping parts 4a, b.
• these are piezoelectric means. They consist of piezo elements 13a, b, which are connected to the lamellar clamping parts 4a, b.
• the lamella-like parts can also themselves be designed as piezo elements.
• the piezo elements 13a, b of the respective lamella-like clamping part 4a, b are electrically controlled via lines 11a, b and 12a, b for clamping and releasing the weft thread 2.
• Chamber 9 connects the first mixing tube section 5 axially to the second mixing tube section 6.
• the lines 11a, b and 12a, b to the piezo elements 13a, b are led through the housing 10.
• FIGS. 3 and 4 the same reference numbers as before are used for those parts which are unchanged in comparison with FIGS. 1 and 2.
• the clamping device 1 is located between a first mixing tube section 5 and a second mixing tube section 6 of the mixing tube 3, the connection being made axially through the housing 10 of a chamber 9.
• On the first mixing tube section 5 two lamella-like clamping parts 4a, b made of resilient material are arranged diametrically opposite one another.
• energizable magnetic means designed as magnetic coils 14a, b are provided.
• the functional principle of the clamping device 1 according to FIGS. 3 and 4 is based on the fact that the lamella-like clamping parts 4a, b hold the weft thread 2 clamped due to their spring restoring force when the two magnetic coils 14a, b are without current (FIG. 3).
• the magnetic forces of the bobbins 14a, b must overcome the spring restoring force of at least one of the lamella-like 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 in the chamber on the first mixing tube section 5.
• the free ends 8a, b of the clamping parts 4a, b protrude into the chamber 9 in the direction of the weft insertion (direction arrow 7).
• a central closure in the form of a chamber 9 pneumatic or hydraulic muscle 15 arranged. It consists of a flexible and elastic material and connects the two mixing tube sections 5 and 6 to one another in a pressure-tight manner.
• the two lamella-like clamping parts 4a, b are integrated in the pneumatic or hydraulic muscle and exert a spring restoring force on it, which 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 also has a pressure medium connection 16 which is connected to a pressure source 18 via pressure medium lines 19, 20 and a directional control valve 17.
• a pressure medium connection 16 which is connected to a pressure source 18 via pressure medium lines 19, 20 and a directional control valve 17.
• a vacuum source for example to a vacuum pump.
• the mixing tube 3 and thus also the pneumatic or hydraulic muscle can be placed under positive pressure from the inside. The compressed air can be used for this, which is already available for the insertion of the weft thread into the shed.
• FIGS. 7a, 7b and 8 show how a clamping device belonging to the invention is implemented using technical means.
• Figure 7a shows a longitudinal section through the main blowing nozzle with a part 5, which is the first
• the second mixing tube section 6 is a tube on which a coupling sleeve 21 is rotatable and displaceable.
• the coupling sleeve consists of a plastic and is provided with a threaded section 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 tube section 5, which has an enlarged diameter in this area. With 23 the screw connection between the receiving opening 22 and the coupling sleeve 21 is designated.
• the coupling sleeve 21 has a polygonal portion on the outside, which serves to attach a tool when the coupling sleeve 21 is rotated.
• the polygonal section can be formed, for example, by flats 40 on an otherwise cylindrical part, cf. Fig. 9.
• the clamping device with the pneumatic or hydraulic muscle already described is inserted into the chamber.
• 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 hose 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 the first mixing tube section 5.
• a cylindrical cone 26 is followed by a first cone 27, which then merges into an elongated cylindrical central part 28.
• a second cone 29 adjoins the cylindrical middle part.
• Two longitudinal slots 30a, b are diametrically opposite one another in the cylindrical middle part 28. Aligned with these longitudinal slots, the two lamella-like clamping parts 4a, b are fastened in the remaining area of the cylindrical guide collar. They consist of resilient metal tongues, in any case from a wear-resistant metallic material. They are attached flat to the remaining area of the cylindrical middle part, for example by brazing, welding or gluing.
• the lamellar clamping parts 4a, b are narrower than the longitudinal slots 30a, b and can thus be pressed inward in the direction of the longitudinal central axis of the cartridge cage through the longitudinal slots. Under the influence of their spring restoring force, the lamella-like clamping parts 4a, b, however, assume a position which is stretched in a straight line and runs parallel to the outer circumference of the cylindrical central part 28.
• FIG. 7b in particular shows that the hose 31 maintains a radial distance from the spring-elastic clamping parts 4a, b when the clamping device is released. This applies at least over the largest part of the width of the clamping parts.
• the lamella-like clamping parts at most lie slightly against the hose with their longitudinal edges.
• the lamellar clamping parts are also not “glued” to the hose. This avoids hysteresis, and the lamellar clamping parts can be controlled very precisely in time from the release position to the clamping position and vice versa.
• the hose 31 for example a cylindrical piece of hose made of silicone, is pushed over the first cone, the cylindrical middle part and the second cone onto the cartridge cage 25. It is then at a radial distance from the lamellar clamping parts 4a, b.
• the cartridge cage 25 is then - in FIG. 7a - pushed in the direction from right to left into the chamber 9 of the first mixing tube section 5 until the cylindrical guide collar engages in an adapted cylindrical recess in the first mixing tube section 5.
• the hose 31 covers the first cone 27 and the second cone 29 and is pressed by them against corresponding conical recesses in the first mixing tube section 5.
• a contact pressure is exerted by tightening the coupling sleeve 21 which, with the interposition of a sealing ring 24, presses the cartridge cage 25 inwards.
• the axial pressing of the cartridge cage inwards into the first mixing tube section causes the hose 31 to be compressed 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 it cannot be rotated and cannot be displaced in the first Mixing tube section 5 is held.
• the clamping device is now ready for use.
• the hose 31 is compressed in the chamber 9. He thus lies inwards against the lamellar clamping parts 4a, b and presses their free ends 8a, b inwards 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 clamped manner.
• O-rings are designated, which allow a sealing insertion into an installation module 30 of the jet looms.
• the injector located in front of the mixing tube is designated, which is in two parts in the illustrated embodiment.
• 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 event of blockages due to dust, fluff or in the event of wear of the lamellar clamping parts, remedial action can be quickly taken.
• FIG. 8 shows particularly well that the cartridge is a compact and relatively simple component.
• FIG. 9 shows in a spatial representation how several 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 comprises a base part 37 and a fastening plate 38, serves for the summary.
• the base part 37 is provided with six insertion bores 43 into which the injectors 35 and the initial region of the mixing tube facing the injector are inserted in a sealing manner.
• the mixing tube 3 also consists here of the part of the main blowing nozzle designed as the first mixing tube section 5 and the second mixing tube section 6.
• the clamping device 1 in the form of the cartridge described above with two resilient clamping parts and a pneumatic or hydraulic muscle is inserted into the end region of the first mixing tube section 5 , It can also 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.
• the grouping of the mixing tubes with their injectors and clamping devices leads to very compact installation modules.
• a large number of main nozzles and mixing tubes for weaving patterns, in particular multicolor patterns, can thus be easily combined in a small space.
• FIGS. 10 and 11 reveal further details of the built-in modules and their internals, in particular details of the supply of the print media.
• the version shown comes especially for air jet looms with pneumatic actuation of the
• branch channels 39 and ring channels 42 are provided, with to which the compressed air or holding air for the weft threads is fed to the injectors and the mixing tubes.
• the compressed air connection for the actuation of the pneumatic muscle which has already been explained with reference to FIGS. 5 and 6, is again designated by 16.
• the O-rings 32, 33 and 34 already mentioned with reference to FIG. 7a seal the first mixing tube section 5 in the longitudinal bores 43 of the base part 37.
• the O-ring 33 separates those air flows that are to be fed to the injector from those that are used to control the clamping device 1.
• the coupling sleeves 21, which are easily accessible in spite of the close assembly, allow the cartridges with the hose 31 and the spring-elastic clamping parts 4a, b to be exchanged at any time in a relatively simple manner. If necessary, however, the entire built-in module 36 can also be removed with the six units of the injector, clamping device and holding tube shown in the exemplary embodiment.

Landscapes

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

Applications Claiming Priority (11)

Publications (2)

Family

ID=32046092

Family Applications (1)

Country Status (7)

Cited By (1)

Families Citing this family (3)

Family Cites Families (4)

• 2003
  • 2003-08-28 AU AU2003269684A patent/AU2003269684A1/en not_active Abandoned
  • 2003-08-28 EP EP03750289A patent/EP1552048B1/fr not_active Expired - Lifetime
  • 2003-08-28 DE DE50306806T patent/DE50306806D1/de not_active Expired - Fee Related
  • 2003-08-28 DE DE10393831T patent/DE10393831D2/de not_active Expired - Fee Related
  • 2003-08-28 AT AT03750289T patent/ATE356900T1/de not_active IP Right Cessation
  • 2003-08-28 BR BR0306438-7A patent/BR0306438A/pt not_active IP Right Cessation
  • 2003-08-28 WO PCT/DE2003/002859 patent/WO2004029347A1/fr not_active Ceased
  • 2003-08-28 JP JP2005509655A patent/JP3983787B2/ja not_active Expired - Lifetime

Non-Patent Citations (1)

Also Published As

Similar Documents

Legal Events