799 results about "Air-jet loom" patented technology

The invention provides a high-grade flax fabric weaving method based on crystallized and modified flax yarns. The method comprises the following steps: in the material preparing stage, woven flax spun yarns are subjected to relaxation and winding, so as to form relaxed yarns on cones; the relaxed yarns on cones are subjected to crystallization and modification treatment; the crystallized and modified relaxed yarns on cones are simultaneously subjected to winding, electronic yarn clearing and waxing, so that weaving yarns on cones are obtained; the weaving yarns on cones are subjected to warping according to the quantity of warp yarns; in the weaving stage, flax grey cloth is woven by taking the weaving yarns on cones as weft yarns, the warp yarns after warping as warp yarns, and drawing weft and warp yarns in an air jet loom; in the dyeing stage, the woven flax grey cloth is subjected to hot dyeing or cold dyeing; in the after finishing stage, the dyed flax grey cloth is rinsed, dried, finalized, preshrunk, wound and packaged to form the high-grade flax fabric. According to the high-grade flax fabric weaving method, the bottleneck of wearability of traditional flax fabric is solved, the flax fabric is enabled to obtain the sense of cotton, the production efficiency is improved, the production cost is reduced, and the energy conservation and emission reduction in the production process are realized.

The invention discloses a production process for a bamboo fiber double-dot lining fabric, which includes the steps of base fabric weaving, overflow slack pretreatment, shaping and cropping, feeding, dispensing, baking, after-finishing, rolling, final inspection and packaging. The product adopts 40S bamboo fibers and terylene interlaced yarns as materials, and is differentially woven by a air jet loom, and thereby the bulkiness of the lining fabric is greatly improved; the lining fabric has the characteristics of the bamboo fibers, i.e. moisture absorbability, moisture releasability, bacteria inhibition and bacteria resistance; the handle of the lining fabric is soft; the lining fabric is highly woolly, moreover, in the processes of pretreatment and after-finishing, the base fabric is treated by softening agent in bath, so that ultrathin 'protective films' can be formed on the fibers, consequently, the smoothness, softness and elasticity of the fabric in treatment bath are at appropriate levels in order to reduce fabric entanglement and decrease the coefficient of wet friction between the fabric and mechanical metal parts, as a result, defects, such as creases and scratches, can be prevented from being produced on the surface of the fabric, the quality of the product is guaranteed, and the overall properties of the lining fabric are excellent.

An aqueous sizing comprising a starch mixture comprising a high viscosity starch and a low viscosity starch cooked at a temperature sufficient to solubilize at least 50% of the high viscosity starch and to solubilize at least 50% of the low viscosity starch. Glass fiber strands formed from glass fibers at least partially coated with the sizing composition of the present invention can exhibit good fliability and insertion time properties when used in an air jet loom.

Provided is a production technology of glass fiber cloth for insulation. The production technology of the glass fiber cloth for insulation comprises the steps that EC8-47.5 glass fiber yarn serves as warp and weft; a warping working procedure technology is carried out, wherein the EC8-47.5 glass fiber yarn is placed on warping creels in sequence; a slashing working procedure technology is carried out; a knitting working procedure technology is carried out, wherein an air jet loom is used for carrying out weaving, drafting, reed insertion, gaiting and weaving are carried out on slashed warp beams in sequence according to plain weave, the warp and weft density is 17.3*14.2 pieces per centimeter, and the cropping length is 2000 meters per roll; a post-processing working procedure is carried out; drying is carried out at the temperature of 200DEG C, and the trimming working procedure, the take-up working procedure, the check working procedure and the packaging working procedure are carried out. The purpose of the production technology for using the EC8-47.5 glass fiber yarn to produce the high-grade glass fiber cloth for insulation is achieved, the warp and weft density of the glass fiber cloth is 17.3*14.2 pieces per centimeter, the thickness of the glass fiber cloth is 0.140mm, the basic weight is 150g/m<2>, the diameter of a filament of the glass fiber cloth is 8 microns, the warp and weft number is 47.5Tex, and the production technology of the glass fiber cloth for insulation has the advantages that the technology is more convenient to use, production management is easy, weaving is convenient, and the foundation is laid for producing the high-grade insulating glass fiber cloth through ordinary devices.

The invention relates to a control device for flying tension and fly time of weft of an air jet loom, which comprises a weft tension sensor that is arranged between a weft accumulator and a main jet, and a flow control valve that is arranged between a corresponding auxiliary jet and an electromagnetic air valve of an air flow supply mechanism. The invention also relates to a control method: (a) the start and the close times of the electromagnetic air valve, a weft-stop pin and the flow control valve on the main control panel of the air jet loom are preset; (b) a main axis angular senor collects the angle signal of a main axis, a photoelectric weft-finder collects the time information of the weft when the weft reaches the weft catching side, and the weft tension sensor collects the tension information of the weft while the weft flies; (c) the main control panel of the air jet loom processes the various information and adjusts the start and the close time parameters of each electromagnetic air valve, each weft-stop pin and each flow control valve, thus saving the air flow, namely, reducing the weft tension level of a restricted flying period by comparatively low air consumption, while prolonging the time of a restricted flying stage and reducing the weft broken rate.

The invention discloses mould-proof anti-bacterial multi-fiber blended woven fabric. The mould-proof anti-bacterial multi-fiber blended woven fabric is formed by weaving warp yarns and weft yarns through an air jet loom and is characterized in that the warp yarns and the weft yarns comprise, by weight, 30-36 parts of isotatic polypropylene, 3-5 parts of cinnamyl aldehyde, 1-2 parts of thiocarbamide, 0.4-0.8 part of stannous mono-sulphate, 3-6 parts of kaolin, 25-34 parts of modal fibers, 20-25 parts of milk grass fibers, 19-26 parts of elastic cotton fibers, 23-28 parts of coconut carbon fibers, 7-9 parts of fluoro-siloxane resin, 8-12 parts of toluene diisocynate, 10-14 parts of butyl alcohol, 2-4 parts of root bark of white mulberry, 3-4 parts of skullcap, 80-90 parts of 1-butyi-3-methylimidazole acetate, 100-110 parts of 1-alyl-3-imidazolium chloride, 4-7 parts of assistant, and a proper amount of water. According to the manufacturing method of the mould-proof anti-bacterial multi-fiber blended woven fabric, the processes are simple, the method is easy to implement, and the functions of the manufactured woven fabric are comprehensive through reasonable selection of raw materials and scientific proportion design. According to the mould-proof anti-bacterial multi-fiber blended woven fabric, various plant fibers are added and are soaked through Chinese herbal medicine, in this way, the spinnability of plant fibers and the spinning quality are improved, all technical indexes of the woven fabric are increased, and the mould-proof anti-bacterial multi-fiber blended woven fabric has the excellent advantage of being resistant to mould and bacteria, soft in handfeeling, hygroscopic, breathable, capable of lowering noise, removing dust and insulating heat and the like.

The present invention discloses a production process for weaving all-cotton cutting motif fabric by an air-jet loom. The production process comprises the following steps of winding process, warping process, sizing process, drawing-in process, weft preparation, and weaving process. The cutting motif fabric is usually weaved by a rapier loom and is not suitably weaved by a high-speed air-jet loom. According to production process, the cutting motif fabric is weaved by the air-jet loom, product quality and production efficiency are ensured, and enterprises gain considerable benefits. Ground warp threads are drawn in front zones of heald frames, and droppers are drawn in back zones, thereby facilitating reduction of tension force of the ground warp threads. Colored warp threads are drawn in the back zones of the heald frames, droppers are drawn in the front zones, and tension force of the colored warp threads is relatively small, thereby facilitating increase of the tension force of the colored warp threads and reduction of knees defects. When the former processes are performed for production, the winding and warping processes are performed at a low speed, air splicing is configured to the winding process so as to reduce yarn hairiness, coating is important in the sizing process, the weaving process is assisted by early opening, large tension force and late weft insertion and the like, and the problem of weft stop is solved.

Air feeding and control device for the pneumatic transporting of the weft (18-21) in air-jet weaving machines, comprising a control system (24), connected to air feeding means, which comprise a compressed air source (2) and a series of nozzles (14-17), driven by respective electrovalves (10-13) and which can be used for inserting the weft; the air feeding means also comprise at least one air feeding and accumulation system (31), suitable for allowing a pre-established quantity of air to be accumulated when the air is not flowing to the nozzles (14-17) and suitable for regulating the air flow-rate when it is flowing to the nozzles (14-17).

The invention disclsoes a method and an apparatus for adjusting an ejection angle position of a sub-nozzle in an air jet loom, and particulalry aims to provide a method and an apparatus for finely adjusting an ejection angle position of a sub-nozzle in accordance with a weaving state. The air jet loom includes a plurality of sub-nozzles arranged along a weft insertion path and a plurality of electromagnetic on-off valves provided to supply compressed air to the sub-nozzles, each electromagnetic on-off valve being connected to one or more of the sub-nozzles, the sub-nozzles connected to each electromagnetic on-off valve ejecting the air to perform weft insertion. The method includes the steps of driving one or more sub-nozzles that belong to an adjustment unit with at least one actuator the adjustment unit including at least one of the one or more sub-nozzles connected to at least one of the electromagnetic on-off valves, and adjusting an ejection angle position of each sub-nozzle included in the adjustment unit by the same angle.

A high support and high density plain weave fabric and its processing technic, the warp and weft are 100% long-staple cotton spinning yarns, their processing technic includes the following steps : (1) raw material preparation, use 100% long-staple cotton, tightly spin into yarns, the weft is steamed and stewed before use; (2) rectify warp by using TRONIC warper, tension zero; (3) mud jacking, with double-groove double-soak double- pressure non-tratified mud jacking form; (4) denting, with 110.5 size steel reed, six heddle, six stopping-patch, the cross way of side yarn is 1324, and stopping-patch is 123456, each side yarn use 4 join every reed; (5) weaving, with double weft storage air-jet loom. The benefits of the invention are: (1) using 100% long-staple cotton and tighting spinning process, fabric reflect its high support and high density characteristics, surface of the fabric is smooth, neat and well-spaced, plump, with good cloth style; (2)use a special process during the warp rectifying, mud jacking, denting and weaving processes, and guarantee the quality of the product, significantly improved quality and grade of product.

The invention discloses nanometer far infrared ceramic fiber woven fabric. The nanometer far infrared ceramic fiber woven fabric is formed by warp yarns and weft yarns in a woven mode through an air jet loom, and is characterized in that raw materials of the warp yarns and raw materials of the weft yarns comprise, by weight, 27 parts to 33 parts of syndiotactic polypropylene, 10 parts to 14 parts of linear low-density polyethylene, 8 parts to 10 parts of polyurethane films, 16 parts to 22 parts of epoxy resin, 0.4 part to 0.7 part of zinc nitrate, 0.6 part to 0.9 part of magnesium hydrate, 1 part to 3 parts of water glass, 20 parts to 25 parts of nylon yarns, 23 parts to 26 parts of colored cotton fibers, 18 parts to 23 parts of nanometer far infrared ceramic fibers, 21 parts to 24 parts of cellulose acetate fibers, 7 parts to 10 parts of isobutyl methacrylate, 5 parts to 9 parts of peach gum, 1 part to 3 parts of radix bupleuri, 2 parts to 5 parts of fossil fragments, 80 parts to 90 parts of 1-butyl-3-methylimidazolium acetate, 90 parts to 100 parts of 1-allyl-3-methylimidazolium chlorine salt, a proper amount of water and 4 parts to 8 parts of assistants. By means of the nanometer far infrared ceramic fiber woven fabric, the spinnability of plant fibers and the spinning quality are improved, the warmth keeping performance, the wearing resistance, the pilling resistance and the washing resistance of the woven fabric are further improved, and the market prospects are good.

The invention discloses a woven fabric with sound insulation and warm keeping properties. The woven fabric is formed by weaving warp yarns and weft yarns through an air jet loom; the warp yarns and the weft yarns are prepared from the following raw materials in parts by weight: 30-34 parts of isotatic polypropylene, 1-3 parts of hargil, 3-7 parts of rock wool, 20-25 parts of modal fibers, 22-26 parts of fireproof fiber cotton, 25-28 parts of waste down feather fibers, 16-19 parts of bambusa texlitis pulp, 0.6-0.9 part of sodium hexametaphosphate, 8-10 parts of methyl methacrylate, 2-4 parts of eucalyptus oil, 12-15 parts of butyl glycidyl ether, 1-3 parts of jasmine, 2-5 parts of herba cepbalanoplosis segeti, 3-4 parts of lophatherum gracile, 85-95 parts of 1-butyl-3-methyl imidazole acetate, 95-110 parts of 1-allyl-3-methyl imidazole chlorine salt, proper amount of water and 5-8 parts of an auxiliary agent. The woven fabric has the sound insulation and warm keeping properties, and antibacterial and mould-proof, and inflaming retarding properties, is applied to automotive trims, and has the properties of low cost, high cost performance and good shape keeping performance and the like; the prospect is wide.

The invention discloses a warp different fabric made of special warps and a weaving process thereof. Conventional warp yarns of the fabric are polyester, refined cotton and vinylon blended yarns; the special warps are two-for-one twisting yarns with 75-denier polyester network yarns and double twisting yarns with 18-denier grey conductive metal wires; the process comprises a spooling process, a warping process, a sizing process, a denting process, a weaving process and a trimming process; during the warping process, arrangement of the special yarns is required to guarantee uniformly winding on a warping shaft, the warping tension is controlled, and stretched warps are avoided; during the denting process, the special yarns adopt ultra-thin droppers to avoid unhalt when the warps are broken; the special yarns are weaved in the front area to guarantee a small opening technology; a yarn separator is used to separate the yarns to avoid adhesion and breaking; a reverse weaving process is adopted to guarantee the special yarns arranged in the front of the fabric and convenient inspection. The weaving process of the warp different fabric has the advantages of enabling the warp different fabric made of special warp yarns to be weaved in a conventional air jet loom, being simple in technology and small in weaving difficulty, well guaranteeing fabric quality and increasing one functional weaving product for the weaving field.

The invention discloses a waterproof noise-reduction multifunctional woven fabric which is formed by weaving warp yarns and weft yarns by an air-jet loom, wherein the warp yarns and the weft yarns are prepared from the following raw materials in parts by weight: 30 to 36 parts of isotatic polypropylene, 10 to 14 parts of polyvinyl chloride, 20 to 24 parts of cowhair, 17 to 19 parts of alpinia fiber, 22 to 26 parts of kenaf fiber, 18 to 23 parts of cotton pulp, 7 to 9 parts of liquid paraffin, 8 to 10 parts of ethyl carbamate, 7 to 11 parts of polytetramethylene glycol, 1.1 to 2.5 parts of benzoyl peroxide, 2.1 to 3.2 parts of chitosan, 0.3 to 0.5 part of magnesium acetate, 2 to 4 parts of shell powder, 1 to 3 parts of rhizoma, 2 to 5 parts of mangnolia officinalis, 85 to 95 parts of 1-butyl-3-methyl imidazole acetate, 95 to 105 parts of 1-allyl-3-methyl imidazole chloride salt, a proper amount of water and 4 to 7 parts of assistant. The woven fabric has the advantages of warmth keeping, ventilation, wear resistance, antibacterial performance and the like.

The invention relates to a pneumatic picking tension regulating device for simultaneously leading in multiple roots of weft, comprising a base with a platform, a weft guide hole, bolts, nuts, springs, a first tension sheet and a second tension sheet. The device achieves the purpose of regulating the pneumatic picking tension force. Each tension device is used for regulating the tension force of one root of weft; after the tension force is regulated by the tension device, multiple roots of wefts which are made of different raw materials and are of different qualities can be simultaneously led into a weft storage and then be sprayed out from a same spray nozzle, thereby respectively reducing the working frequency of the spray nozzle, the shedding frequency and the energy consumption of an air-jet loom.

The invention discloses a test positioning clamp for an auxiliary spray nozzle of an air-jet loom. The clamp comprises a clamp base, wherein a pair of supports is arranged on the clamp base; an angular adjustment block is arranged on the supports and can rotate on the supports; a positioning block is arranged on the angular adjustment block; an auxiliary spray nozzle positioning component is arranged in the positioning block and comprises a central positioning block and a circumferential positioning block; a cylindrical hole is formed on the central positioning block; a first waist-shaped hole is formed on the circumferential positioning block; the cylindrical hole is coaxial with the first waist-shaped hole; a guide groove is formed on the end face of the auxiliary spray nozzle positioning component; and a vertical positioning pressing plate is arranged in the guide groove. The positioning clamp of the invention can improve the test efficiency of the auxiliary spray nozzle of the air-jet loom, has a simple structure, and is convenient to use and easy to popularize.

To simplify piping from a compressed air feed source to a main nozzle. The air feeder comprises a first opening and closing valve connected to the compressed air feed source, one or more first compressed air conditioners connected to the first opening and closing valve and setting the amount of flow or the pressure to a prescribed first set value, one or more second compressed air conditioners connected to the compressed air feed source and setting the amount of flow or the pressure to a second set value and having the number equivalent to or larger than the number of the first compressed air conditioners and one or more opening and closing second valves connected to each of the first and second compressed air conditioners and having the same number as the number of the first compressed air conditioners. Each second opening and closing valve is connected to a main nozzle and opening of the first opening and closing valve is carried out in a prescribed first period in weft insertion and opening of each second opening and closing valve is carried out in the first period and a second period different from the first one.

The present invention provided a picking motion in a jet loom, capable of avoiding a backflow of air and a cost problem. In this picking motion of the jet loom, groups of auxiliary picking nozzles are each connected to an upstream-positioned air tank through electromagnetic on-off valves. And, the groups of auxiliary picking nozzles are each connected to a downstream-positioned air tank through electromagnetic on-off valves. Check valves are each mounted on flow paths located on the downstream sides of the electromagnetic on-off valves. The electromagnetic on-off valves are subjected to excitation and demagnetization control with a control computer. The control computer controls excitation and demagnetization of electromagnetic on-off valves based on information on a rotation angle of the loom which is transmitted from a rotary encoder for detecting the rotation angle of the loom.

The present invention relates to a weft insertion device of an air-jet loom, which comprises the following components: a weft yarn channel which is provided in a shed of twist yarn, a main nozzle which inserts the weft yarn into the weft yarn channel through air jet, and a plurality of auxiliary nozzles which are separately placed along the weft yarn channel and carry the inserted weft yarn to the downstream part through air jet. The plurality of auxiliary nozzles are divided into a plurality of areas along the weft yarn channel. The auxiliary nozzles in the downstream area along the weft yarn channel are separately placed with a certain distance from one another, wherein the distance is larger than the that of the auxiliary nozzles in the upstream area along the weft yarn channel.

The invention discloses a weft-catching device of an air-jet loom for weaving a chemical fiber filament yarn fabric, which adopts the following technical scheme: the weft-catching device comprises an underframe and a fixed support arranged on the underframe, a selvage yarn drum of which at least one side is provided with a belt pulley is connected with the fixed support by a fixed shaft, a friction belt is arranged in a groove of the belt pulley, a round hole at one end of the friction belt is connected with a bolt on the underframe by a spring, and a round hole at the other end is directly connected with a bolt. The device of the invention can be used for solving the problem that the chemical fiber filament yarn can rebound after being subjected to weft insertion on the air-jet loom and improving the start-up efficiency and the actual quality of the fabric. Besides, the device of the invention has the advantages of low input cost and wide application range and is convenient to process.

The invention discloses a double-swing main jet wefting insertion mechanism of a jet loom, comprising a fist-level main jet and a second-level main jet. The double-swing main jet wefting insertion mechanism of a jet loom is characterized in that the first-level main jet and the second-level main jet are arranged on the same buckle seat and synchronously swing with the buckle seat, the first-level main jet is arranged in front of the second-level main jet, and the nozzle of the second-level main jet is aligned with the nozzle of the first-level main jet one by one. In the invention, the fist-level main jet performs the main dragging action on weft yarn, the second-level main jet is the supplement of the fist-level main jet, and the second-level main jet and the first-level main jet are arranged on the same buckle seat and synchronously swing, which not only can obtain large enough traction to provide enough time for the weft yarn to fly but also can cause the weft yarn to fly along a straight line so as to reduce unnecessary bending resistance, and thus the weft yarn can smoothly fly. The invention lowers gas consumption, and can better improve wefting insertion rate to obtain the effect of energy saving and high efficiency. Meanwhile, the invention can better adapt to the requirements of high speed and wide width of jet looms.

The present invention relates to a method for clamping the abb which is leaded to the inner side of the air-jet loom with reed (8). In the method, the abb which is leaded to the inner side of the air-jet loom deviates from the filling insertion direction (9) and is blown into the receiving opening (5a) in the catching channel (5), and is clamped therein. The positions of the nozzle (3) and the catching channel (5) are matching with the expected fabric width in the width range of the reed. In the assigned method the nozzle (3) and the catching channel (5) are configured at the beating-up side of the reed (8).