990results about "Braid" patented technology

The invention provides a high-strength, light and supercritical foaming fabric and a preparation method thereof, complete fibers used by the fabric comprise core layer fibers and a skin layer material, the outer side of the core layer fibers is uniformly coated with the skin layer material, and the skin layer material can be foamed; the core layer fiber is at least one of aramid fiber, polyarylate fiber, polyimide fiber, ultra-high molecular weight polyethylene fiber, polyester fiber and polyamide fiber; and the skin layer is made of thermoplastic elastomer resin. The preparation method comprises the following steps: uniformly coating the outer side of the core layer fiber with the skin layer material, and then carrying out supercritical foaming on the skin layer material. According to the invention, the contradictory technical requirements of the fabric for shoes on strength, light weight, comfort and the like are solved in a simple mode; the body strength of the fiber for the shoes can be kept, and the characteristics of light weight and air permeability of the foaming fabric are also achieved; the difficulty of direct foaming of the fabric / fiber for shoes is reduced, and the vamp fabric and the shoe article which are uniform in foaming, breathable, light in weight, high in strength and soft can be obtained.

The invention relates to the technical field of fiber reinforcement, and discloses a melt impregnation weaving process of a flame-retardant fiber reinforced thermoplastic filling rope, the melt impregnation weaving process comprises fiber pretreatment, melt impregnation, multi-stage stretching setting, weaving forming and post-treatment, through the synergistic effect of plasma activation and nano flame-retardant pretreatment, the fiber surface activity and the flame retardant binding force are improved, and the flame-retardant fiber reinforced thermoplastic filling rope is obtained. Meanwhile, a segmented temperature control melt impregnation process is combined, so that the resin is ensured to form a uniform and complete coating layer on the surface of the fiber monofilament, the problems of weakening of interface bonding and non-uniform flame-retardant distribution in a traditional process are solved, and the flame-retardant efficiency and mechanical reliability of the filling rope are improved; a dynamic mathematical model of the tension gradient and the traction speed is established, the fiber crystallization orientation process is controlled, and the internal stress concentration phenomenon is eliminated; in combination with a dynamic tension compensation mechanism during weaving forming, the weaving tightness of the coating layer is corrected in real time, and the dimensional stability and the anti-fatigue performance of the filling rope under the complex load are guaranteed.

Systems and methods for forming a tubular braid are disclosed herein. A braiding system configured in accordance with embodiments of the present technology can include, for example, an upper drive unit, a lower drive unit, a mandrel coaxial with the upper and lower drive units, and a plurality of tubes extending between the upper drive unit and the lower drive unit. Each tube can be configured to receive individual filaments for forming the tubular braid, and the upper drive unit and the lower drive unit can act against the tubes in synchronization to cross the filaments over and under one another to form the tubular braid on the mandrel.

The invention belongs to the technical field of soft robots, and discloses a lockable driver based on artificial muscles and a driving method of the lockable driver. The driver comprises an artificial muscle bundle, a locking device and a flexible connector, the artificial muscle bundle is formed by weaving a plurality of CD-ROM liquid crystal elastomer fibers in a chain shape, and 30%-50% of reversible contraction deformation can be generated under illumination; the locking device is of a layer blocking variable stiffness structure, and millisecond soft-hard state switching is achieved through vacuum negative pressure. During driving, light initiates phase change shrinkage of the liquid crystal elastomer, and then the locking device is vacuumized to fix deformation; and the flexible state can be recovered by charging positive pressure when the pressure is released. The problems that a traditional flexible driver is high in standby energy consumption and poor in load capacity are solved, the high deformation capacity and the lockable rigidity are achieved, and the flexible driver can be widely applied to the fields of exoskeletons, rehabilitation instruments and the like.

The invention provides a fabric-reinforced electroactive nerve conduit and a preparation method and application thereof, and belongs to the field of biomedical materials.The fabric-reinforced electroactive nerve conduit comprises a nerve conduit inner layer and a nerve conduit outer layer, the nerve conduit inner layer is a woven skeleton formed by magnesium wires serving as parallel yarns and degummed silk through a three-dimensional weaving process, the pore diameter of the nerve conduit inner layer is 1.5-2 mm, and the thickness of the nerve conduit inner layer is 0.5-1 mm; the outer layer of the nerve conduit is a composite layer with a radial finger-shaped porous structure, which is formed by directionally freezing and casting a hydrogel cross-linked network formed by mixing potassium sodium niobate nanorods modified by polydopamine and a biopolymer material, and the thickness of the outer layer of the nerve conduit is 1-2mm. A three-dimensional weaving technology, a piezoelectric nano material and a biopolymer material are combined, a novel multifunctional nerve conduit is developed to repair nerve injury, a better solution is provided for nerve repair, and the fabric enhanced electric activity nerve conduit has important practical guiding significance in application of future clinical nerve injury repair.

The invention discloses an intelligent manufacturing optimization method and an intelligent manufacturing optimization system for a data line capable of preventing yarn weaving swelling, and aims to solve the problem of swelling defects in the yarn weaving process through the intelligent manufacturing optimization method and improve the production quality and efficiency of the data line. By introducing technologies such as data acquisition, image recognition, machine learning and real-time feedback, the production process is accurately monitored and intelligently optimized. The data acquisition module records various parameters in the production process in real time, and the visual recognition system recognizes the bump defect on the data line through an image processing technology, so that the defect of each data line can be detected in time in the production process. A data analysis and modeling module is used for establishing a mathematical model of a yarn weaving process based on historical data, identifying key factors influencing a bulge phenomenon, optimizing process parameters through an intelligent algorithm, and dynamically adjusting key variables in a production process. And the production efficiency and the product quality are improved, enterprises are promoted to develop towards the intelligent manufacturing direction, and high market competitiveness and sustainable development potential are achieved.

A weft yarn for an artificial ligament (1), a weft yarn preparation method, and an artificial ligament (1). The artificial ligament (1) is of a round rod structure; a first woven part (102), an in-joint free filament part (103), and a second woven part (104) which are sequentially connected are formed in the round rod structure in the axial direction thereof; the in-joint free filament part (103) comprises a plurality of weft yarns (201), and the weft yarns (201) extend in the axial direction of the round rod structure; and each weft yarn (201) has a fineness of 1000 D-3000 D / 1-100 F, and a mechanical strength of 75-300 N. By increasing the mechanical strength of a single yarn formed in the in-joint free filament part (103) of the artificial ligament (1), the number of yarns in the in-joint free filament part (103) is decreased. The present invention can eliminate a knee joint synovial membrane inflammatory response caused by chippings of the artificial ligament (1) in the reconstruction process of the artificial ligament (1), reduce the degree of contact adhesion between the in-joint free filament part (103) and the tissue, reduce the probability of adhesion, and solve the clinical problems of the inflammatory response and the prolonged surgery time which are caused by difficult removal due to adhesion of the free filaments and the tissue in the revision surgery.

The invention provides a woven nerve conduit with piezoelectric performance and a preparation method and application thereof, and belongs to the field of nerve conduits.The preparation method comprises the steps that degummed silk is soaked in a dopamine hydrochloride solution, sodium hydroxide is added to adjust the pH value, and stirring is conducted to obtain polydopamine modified degummed silk; dispersing the polydopamine modified degummed silk, EDOT and FeCl3. 6H2O in an ethanol solution, stirring, centrifuging, washing and drying to obtain PEDOT modified degummed silk; the degummed silk modified by PEDOT is used as weaving yarn, and a nerve conduit skeleton is woven through a three-dimensional weaving technology; preparing a glycine solution, crystallizing and grinding to obtain beta-type glycine; pLLA particles are dispersed in hexafluoroisopropanol to be dissolved, beta-type glycine is added to obtain a PLLA-coated Gly solution, a PLLA-coated Gly fiber membrane is prepared on the surface of a nerve conduit skeleton through electrostatic spinning, and the woven nerve conduit with the piezoelectric property is obtained. The novel nerve conduit is developed by combining the three-dimensional weaving technology and the piezoelectric material, and a better solution is provided for nerve restoration.

The invention provides a coordinated control method and system for a pultrusion line, and belongs to the technical field of plastic state substance processing. The production requirement information is analyzed, and a weaving instruction is sent to a weaving machine to weave a net-shaped layer; controlling a winding machine to wind wefts to obtain a fiber braided fabric; injecting liquid resin into the fiber braided fabric; and the fiber braided fabric injected with the liquid resin is heated, cured and formed through pultrusion equipment, speed coordination control is conducted based on a traction machine, and a target production product is pulled out through pultrusion and traction. According to the pultrusion line coordination control method and system, the fiber braided fabric is braided and wound on the basis of the production requirement information, the liquid resin is injected into the fiber braided fabric, the fiber braided fabric injected with the liquid resin is heated, cured and formed through the pultrusion equipment, and speed coordination control is conducted on the basis of the traction machine; and a target production product is pulled out through pultrusion, so that the production efficiency of the extruded and drawn wire is greatly improved.

The utility model provides a square fishing line knitting machine, and relates to the technical field of cleaning machines. The device is provided with a discharging platform and a supporting frame, a recycling mechanism is installed on the supporting frame, a plurality of discharging rotating discs are arranged on the discharging platform, a plurality of sliding seat clamping grooves are evenly formed in the outer ring sides of the discharging rotating discs, spindles are installed on the sliding seat clamping grooves, a multi-ring knitting track groove is formed below the discharging rotating discs, and the multi-ring knitting track groove comprises a plurality of circular ring grooves. A plurality of circular ring grooves of the multi-ring knitting track groove are sequentially connected in a tangent mode, every two adjacent circular ring grooves are communicated at the tangent point, and the spindles installed on the discharging rotary disc sequentially slide along the multi-ring knitting track groove. A special square weaving mode is creatively adopted, the woven structure formed after weaving is square, the inherent idea that the woven structure of the fishing line is round is broken through, gaps in the middle of the woven fishing line are reduced, the woven fishing line is more compact, and the abrasion resistance and the tensile strength of the fishing line are improved.

Vascular treatment devices and methods include a woven structure including a plurality of bulbs that may be self-expanding, a hypotube, for example including interspersed patterns of longitudinally spaced rows of kerfs, and a bonding zone between the woven structure and the hypotube. The woven structure may include patterns of radiopaque filaments measureable under x-ray. Structures may be heat treated to include various shapes at different temperatures. The woven structure may be deployable to implant in a vessel. A catheter may include a hypotube including interspersed patterns of longitudinally spaced rows of kerfs and optionally a balloon. Laser cutting systems may include fluid flow systems.

The utility model relates to a woven wrist rope which is specially designed for photography enthusiasts, mobile phone users and the like, is formed by weaving a single parachute rope and is combined with a device ring opening, a wrist ring opening and a rope knot part woven by rope knots such as a core-spun snake knot and the like. According to the wrist rope, the size of the ring opening can be freely adjusted without additional accessories, the structure is compact and light, the strength and durability are excellent, and various pulling forces in daily use can be borne. In addition, the fracture of the single parachute cord can be extended and woven into various decorative ends, so that the parachute cord is attractive and stable.

The invention relates to the field of fiber manufacturing, in particular to a magnetic far-infrared dual-response fiber and a preparation method thereof.The magnetic far-infrared dual-response fiber comprises a polymer matrix and a magnetic far-infrared composite material evenly distributed in the polymer matrix; the magnetic far-infrared composite material comprises a nano ferroferric oxide core body and a zirconium carbide coating layer coating the core body, the interior of the nano ferroferric oxide core is doped with transition metal elements, so that the Curie point temperature of the nano ferroferric oxide core is 40-50 DEG C, and the surface of the nano ferroferric oxide core is modified by a cationic surface active agent to form a positive charge layer; hydroxyl is grafted on the surface of the zirconium carbide material. The Curie temperature of ferroferric oxide is precisely regulated and controlled to range from 40 DEG C to 50 DEG C through transition metal doping, a magnetic-far infrared synergistic energy transfer channel is designed and constructed in combination with a core-shell structure, intelligent response with the far infrared emissivity larger than or equal to 0.90 is achieved under body temperature triggering, and the functional strength and large-scale production feasibility are both achieved.

The invention discloses a lightweight aramid fiber woven polytetrafluoroethylene hose and a manufacturing method thereof, and belongs to the technical field of polytetrafluoroethylene tubes. The manufacturing method comprises the following steps: (1) weighing modified PTFE powder and a lubricant, uniformly mixing, standing and curing, and placing in a plunger type PTFE special extruder for extrusion molding to obtain a PTFE tube blank; (2) the PTFE pipe blank is put into a drying oven to be subjected to degreasing treatment; (3) putting the degreased PTFE pipe blank into a sintering furnace, and sintering according to a sintering process curve; and (4) mounting the PTFE base tube obtained by sintering treatment on a braiding machine, and carrying out bidirectional braiding by adopting aramid fibers to prepare the lightweight aramid fiber braided reinforced polytetrafluoroethylene hose. The problems that an existing PTFE hose is large in weight, insufficient in mechanical strength, weak in bonding between a fiber reinforcing layer and a matrix interface, prone to layering and failure and the like are effectively solved, and unification of light weight, high strength and high reliability is achieved.

A tubular medical device (10) includes a flexible body (12) having a proximal portion and a distal portion (16) including a distal end (14). The flexible body is formed of a plurality of braided filaments (26,28). The flexible body includes a longitudinal axis (25) extending from the proximal portion to the distal end. The flexible body includes a first braid density at a first radial location and a second braid density at a second radial location, the first radial location and the second radial location being at a same axial location along the longitudinal axis.

A sleeve for protecting an elongate member, including a bus-bar of a battery pack, and method of construction thereof are provided. The sleeve includes a knit wall having a circumferentially continuous outer surface extending along a longitudinal axis between opposite open ends. The knit wall is formed at least in part by multifilament flame-resistant yarn. The multifilament flame-resistant yarn is knit to form both the knit wall, and also first ribs extending lengthwise along the circumferentially continuous outer surface or second ribs extending annularly about said circumferentially continuous outer surface. An impervious, flame-resistant coating is bonded to an outer surface of the circumferentially continuous knit wall.

The invention discloses a combined yarn carrier and a yarn guiding method.The combined yarn carrier comprises a yarn storage carrier and a tension yarn carrier, and the yarn storage carrier is used for storing yarn and moves along a first guide groove according to a preset track in the knitting process; the tension yarn carrier is used for adjusting and controlling the tension of the yarn and moves along the second guide groove according to a preset track; wherein the yarn storage and carrying device and the tension yarn carrying device are two mutually independent separated parts, are connected through yarns, and are combined for use to guide the yarns to a knitting area to participate in a knitting process. The yarn storage function and the tension control function are separated through the combination mode, mutual influence and space limitation of the integration mode are avoided, the separated yarn guide path is adopted, the yarn storage function and the yarn release function and the tension control function are isolated, and the tension control difficulty is reduced.

Improved reinforced thermoplastic hoses exhibiting improved layer adhesion, improved burst pressure response, and better fitting retention are provided. High quality adhesion between tube, cover, and reinforcement layers is exhibited. Improved methods of making reinforced thermoplastic hoses to reduce use of SVHC chemicals and improve manufacturing efficiency are also provided. The thermoplastic hoses are suitable for pneumatic and hydraulic applications.

The invention relates to a circumferential yarn distribution device for polar fabric. The yarn distribution device comprises a circumferential uniform yarn arrangement mechanism and a diffusion type yarn hanging mechanism. The circumferential uniform yarn arrangement mechanism is composed of yarn arrangement suckers, yarn hanging tags and tension control yarns, the yarn arrangement suckers are annularly and uniformly distributed, one ends of the yarn hanging tags are adsorbed to the yarn arrangement suckers, the other ends of the yarn hanging tags are connected with the tension control yarns, the yarn hanging tags between the adjacent yarn arrangement suckers are connected with the two ends of the yarns through the tension control yarns on the two sides, and yarn initial positioning and tension control are achieved. The diffusion type yarn hanging mechanism comprises a knitting yarn disc and yarn hanging nails distributed on the surface of the knitting yarn disc in the radial direction. The multiple rows of fixed yarn guide shafts are evenly distributed on the periphery of the knitting yarn disc. Yarn is guided by the directional yarn guide shaft after being guided by the yarn arrangement mechanism which is uniformly distributed in the circumferential direction, and is folded and hung on the yarn hanging nails to form a yarn distribution track which is outwards spread and arranged along the circle center. According to the device, through the synergistic effect of the circumferential uniform distribution yarn arrangement mechanism and the diffusion type yarn hanging mechanism, the circumferential diffusion yarn distribution process of the polar fabric is achieved for the first time.

The invention discloses a knitting machine and a knitting method, the knitting machine comprises a core wire supply assembly, a plurality of galloping spindles, a driving assembly and a round rope adjusting assembly, the core wire supply assembly is used for supplying core wires; the multiple galloping spindles are circumferentially distributed around a preset axis, and the galloping spindles are used for conveying coating wires to the surface of the core wire; the driving assembly is in driving connection with the galloping spindles and can drive the galloping spindles to move along a preset path, so that the covering threads output by the galloping spindles are interwoven on the surface of the core thread to form a covering layer, and the covering layer and the core thread jointly form a round rope; the round rope adjusting assembly and the core wire supply assembly are distributed along a preset axis, the round rope adjusting assembly comprises a driving structure and a guide wheel, a containing groove is formed in the wheel face of the guide wheel, the round rope can penetrate through the containing groove, and the driving structure is in driving connection with the guide wheel and used for driving the guide wheel to rotate around the preset axis. Round ropes with different lines are woven.

The utility model provides a pre-woven and carded braided wire structure and a weaving device, the pre-woven and carded braided wire structure comprises a braided wire, the braided wire is formed by weaving and carding dozens of strands of monofilaments and carded wires, the carded wires are arranged in the dozens of strands of monofilaments according to a certain warp and weft interspersing mode and form a roll of multi-strand whole braided wire, and when the multi-strand whole braided wire pulls one end of the carded wire, the carded wires are wound on the braided wire. According to the utility model, the dozens of strands of monofilaments are rapidly separated from the carding line, and when a plurality of strands of reorganized lines in the net pipe knitting machine are about to be consumed up, a new plurality of strands of reorganized lines are in butt joint connection with the plurality of strands of reorganized lines which are about to be consumed up under the condition that the net pipe knitting machine is not shut down, so that the dozens of strands of monofilaments and the carding line are knitted and carded into the plurality of strands of reorganized lines; according to the utility model, the problems of disordered wires, winding, rolling and the like which are extremely easy to occur when monofilaments are conventionally folded or collected are effectively avoided, the machine does not need to be shut down, a worker can carry out butt joint connection on a plurality of strands of new reorganized wires and to-be-consumed wires under the condition that the machine does not need to be shut down, and 24-hour continuous start-up operation is realized.

The invention relates to a preform of an aircraft bulkhead and a manufacturing method thereof. According to the invention, the preform of the bulkhead has edge strips located at both ends thereof and a web located in the middle of the preform and connecting the edge strips, the web has a radian in the longitudinal direction of the web, and a 0-degree yarn extending at an angle of 0 degree relative to the longitudinal direction of the web without wrinkles is laid on the web. According to the invention, the 0-degree yarn can be arranged on the web plate of the bulkhead preform in the longitudinal direction without wrinkles, so that the 0-degree yarn has tension in the longitudinal direction of the web plate, thereby meeting the stress requirement on the bulkhead in the longitudinal direction, ensuring the smoothness of preform fibers, improving the adaptation degree of the bulkhead preform to a curved surface, and improving the production efficiency of the bulkhead preform. The manufacturing efficiency of the bulkhead preformed body is improved, and the manufacturing quality and reliability are ensured.

The utility model relates to the field of knitting machines, in particular to a circular and flat continuous mixed knitting machine. The utility model provides a circular-flat continuous hybrid knitting machine. The circular-flat continuous hybrid knitting machine comprises a gear chamber arranged between an upper disc and a lower disc, the public rail is arranged on the upper plate, and a sinking groove is formed in the joint of the public rail; the first driving plate is arranged between two adjacent junctions of the public rail; the second driving plate is arranged between other adjacent junctions of the public rail; the first drive plate gear and the second drive plate gear are arranged in the gear chamber and are coaxially connected with the first drive plate and the second drive plate respectively, and the adjacent second drive plate gears are meshed with each other; the first transmission assembly is arranged on the lower plate and is in gear transmission connection with the first driving plate; the second transmission assembly is arranged on the upper plate and is in gear transmission connection with the second driving plate; the reversing assembly is arranged in the sinking groove; the control assembly is arranged on the upper disc. According to the utility model, accurate and rapid switching of three knitting modes of round wire knitting, flat wire knitting and round-flat alternate knitting in a non-stop state is realized.

A braided wrist strap and its braiding method are disclosed, belonging to the field of portable electronic device accessories. The wrist strap is formed by integrally braiding a single paracord to create an equipment loop (1), a wrist loop (2), and a knotted portion (3) between the two. The knotted portion (3) is a core-filled knot with an adjustable rope segment inside, which has a linkage adjustment function and can adjust the size of the two loops without any metal or plastic accessories. The adjustable rope segment can be located on the same side of the knot to form a parallel structure to optimize the operating feel; a label (4) can be set on the fixed rope segment side to provide intuitive guidance and prevent over-pulling; the paracord can be cored to flexibly adapt to different device interfaces; and decorative ends (3e, 3f) can be braided at the break to enhance the structural stability and aesthetics.

A protective textile sleeve includes a braided, tubular wall extending lengthwise along a central longitudinal axis between opposite ends. The wall includes hybrid yarns, with each of the hybrid yarns including at least one multifilament wrapped about a monofilament, such that the monofilament is concealed by the at least one multifilament.

The utility model discloses a combined mold for processing shoe parts. The combined mold structurally comprises a hollow base plate, the mold frame is arranged at the upper end of the base plate, the central hollow part of the mold frame is overlapped and communicated with the hollow part of the base plate, and an adjusting notch is formed; the at least one first detachable module is located on the front side or the rear side of the inner wall of the adjusting notch; the at least one second detachable module is located on the left side or the right side of the inner wall of the adjusting notch; the die frame comprises mutually spliced fixing modules, die size selection and die outer frame size adjustment control can be carried out according to actual production requirements, so that needed production can be completed at a time, the production efficiency of the whole vamp stacking die is improved, the use upper limit of the vamp stacking die is improved, functions are enriched, the overall structural design is ingenious, disassembly and assembly are easy, and the production cost is reduced. And when a single mold plate is damaged, quick replacement can be performed, so that efficient production of the mold is ensured, the repair cost is reduced, and the production selectivity is improved through combined use.

The present invention discloses a process and a plate for three-dimensionally weaving a plate with channels, comprising: arranging yarns on a three-dimensional weaving base according to the shape of the plate, not arranging yarns in the empty positions of the channels, and weaving the plate with channels in three dimensions according to a four-step method. In the present invention, a three-dimensional weaving plate with channels is made using three-dimensional weaving technology. This plate has good structural integrity and strong load-bearing performance. It will not delaminate after being subjected to force. The design of its channels can reduce the weight of the plate while also having the function of thermal insulation. Furthermore, the shape, arrangement, and number of the channels in the present invention can be designed according to the working conditions of the product, which is conducive to reasonably improving the mechanical contribution rate of the fiber. The plate with channels of the present invention has high specific strength and high specific modulus, and can be matched with the selection of materials to meet the needs of aerospace, rail transportation, sports and leisure, construction and other fields for different composite material plates.

A heat resistant separation fabric for use as tool covering in the production of glass products at temperatures over 580°C, wherein the heat resistant separation fabric comprises fiber yarns, and wherein said fiber yarns comprise metal fibers out of first material containing: 18 to 21 weight percent Cr, 23 to 26 weight percent Ni, 5.5 to 7 weight percent Mo, and 40 to 50 weight percent Fe.