765results about "Braid" patented technology

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.

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 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.

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 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 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 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.

The utility model relates to the technical field of textile, in particular to a weaving thread tightness adjusting device for a creel, which comprises a weaving frame, a plurality of fixing mechanisms are mounted on the weaving frame, a clamping plate is clamped on the fixing mechanisms, a guide mechanism is fixed on the clamping plate, a bobbin creel is rotatably mounted on the clamping plate, and the bobbin creel is fixed on the bobbin creel. An adjusting mechanism is arranged between the two guide mechanisms and comprises a tension spring and a mounting block, the mounting block and an inserting rod are fixedly connected to the clamping plate, a rotating block is rotationally connected to the inserting rod, a swing rod is fixedly connected to the rotating block, and the tension spring is fixedly mounted between the swing rod and the mounting block; a connecting rod is fixedly mounted at the end part of the swing rod, and a line pressing wheel is rotationally connected to the connecting rod; when the line pressing wheel senses the change of the tension of the weaving line, the swing rod can be driven to rotate, so that the tension spring is in an open or contracted state, and the tightness of the weaving line can be conveniently adjusted.

The utility model discloses a tension-adjustable polypropylene knitting machine feeding device, and relates to the technical field of knitting machine feeding devices. The device comprises a device supporting frame, a knitting cylinder and a fixing supporting device, a first supporting frame is fixedly installed outside the device supporting frame and fixedly connected with the fixing supporting device, a second supporting frame is fixedly installed outside the device supporting frame, and the knitting cylinder is movably connected outside the second supporting frame and fixedly connected with the fixing supporting device. A tension adjusting assembly is fixedly installed outside the knitting cylinder, and the tension adjusting assembly comprises a circular ring gear, a second rotating shaft and a fixing circular ring. And the extrusion pulley and the second pulley are utilized to enable the knitting machine to straighten the polypropylene knitting material when the knitting machine stops working.

The invention discloses a method for producing a tassel fabric, which comprises the following steps: weaving a main body, weaving an edge block, weaving the edge block at one end of the main body to form a fabric blank, the edge block comprising a first woven block and a second woven block woven by a second water-soluble yarn, the first woven block having a plurality of first woven blocks arranged in a row, and a second woven block arranged between two adjacent first woven blocks; dissolving, placing the fabric blank into hot water to dissolve the second woven block, curling, curling the side edges of the first woven block to the middle to form a tassel, and changing the fabric blank into a tassel fabric. The invention dissolves the excess part of the woven edge block by water to form a row of strip-shaped cloth strips, and then curls the cloth strips to form various tassels due to the different shrinkage rates of the front and back sides. The produced tassel is no longer a single straight yarn, and the tassel can also be attached with an embroidery pattern, so that the style is more.

The invention provides composite cross-woven membrane cloth based on multi-material hollow fibers and a preparation method, and relates to the technical field of fiber materials, the composite cross-woven membrane cloth comprises a double-layer asymmetric composite woven network composed of an outer layer and an inner layer, the outer layer is a first fiber, the inner layer is a second fiber, and the outer layer is a hollow fiber. The first fibers and the second fibers are subjected to interface fusion or interlocking at the interlacing points, the mechanical strength and the chemical resistance are improved through the complementary characteristics of the performance of various different materials, and the comprehensive performance of the film is improved.

The utility model discloses a tape yarn knitting mechanism, which belongs to the technical field of textile, and is characterized in that an existing tape yarn knitting device is improved, specifically, an automatic yarn twisting unit is additionally arranged in a knitting area, and meanwhile, an upper yarn guide unit and a lower yarn guide unit are respectively arranged on an upper yarn path and a lower yarn path of the knitting area. Whether the yarn breaking phenomenon occurs or not can be sensed in time through the additionally arranged upper yarn guide unit and the additionally arranged lower yarn guide unit, the yarn breaking end of an upper yarn path and the yarn breaking end of a lower yarn path can be automatically conveyed to the upper end of a needle shaft of a knitting area in a pneumatic mode through the automatic yarn twisting unit, and then broken threads are guided into a splicing groove of a yarn twister for splicing through manual assistance; namely, according to the scheme, the broken yarn ends of the upper yarn path and the lower tape yarn path can be automatically obtained in a pneumatic and tension sensing mode, the broken yarn is guided to the yarn twister to be twisted in a manual assistance mode, the broken ends do not need to be manually found, dependence on manpower is reduced, personal errors and potential safety hazards are reduced, and the production quality and efficiency of the yarn are improved.

An implantable medical device includes a wire frame, a cover, and a sensor. The wire frame is formed of struts and openings. The cover connects to the struts of the wire frame. The cover is fashioned from a fabric including a PET fabric made of PET yarn and a ferromagnetic material combined with the PET fabric. The PET yarn is made from a plurality of PET fibers. The sensor is positioned on the cover and connected to the wire frame. The cover shields the sensor from detuning effects of the wire frame.

A mechanical packing cartridge for use with a fluid regulating device to provide a seal between a movable shaft and a stationary housing of the fluid regulating device. The mechanical packing cartridge can include a packing element having a length sufficient to be coiled having a first end and a second end, a first end cap element having a main body having a first top land surface formed in a sloped helical shape for coupling to the first end of the packing element, and a second end cap element having a second top land surface formed in a sloped helical shape for coupling to the second end of the packing element.

The invention relates to the technical field of knitting machines, and discloses a longitudinal and transverse knitting method for knitting a three-way fabric sleeve, the three-way fabric sleeve is arranged on a determinant circular knitting machine, the determinant circular knitting machine comprises an outer ring and an inner ring, a middle fixing ring is arranged between the outer ring and the inner ring, and spindle clamping grooves are formed in the outer ring, the inner ring and the middle fixing ring in the circumferential direction. The corresponding spindle clamping grooves in each ring are in the same radial direction; a fixed spindle is arranged on the middle fixed ring at an interval of two groups of spindle clamping grooves, a weaving spindle is arranged on the outer ring and the inner ring at an interval of five groups of spindle clamping grooves, the spindles of different rings are not in the spindle clamping grooves in the same radial direction, and the spindles of the inner ring and the outer ring are distributed in the adjacent spindle clamping grooves; the determinant type three-dimensional circular knitting machine is adopted to achieve knitting of the three-way fabric sleeve, the determinant type three-dimensional circular knitting machine is simple in overall structure and has the advantage of being dense in yarn arrangement, the equipment cost can be reduced, and a new method is provided for low-cost knitting of the large three-way fabric sleeve.

The utility model discloses a braiding machine for braiding a top knot rope on a fishing line, and belongs to the technical field of fishing gear manufacturing equipment. Comprising a thread clamping device used for clamping and straightening a fishing thread and a knitting device used for knitting a top knot rope on the fishing thread, and the knitting device comprises a ring knitting mechanism used for knitting rings on the fishing thread and a pushing mechanism used for pushing the ring knitting mechanism to move horizontally along the fishing thread; the fishing line is straightened and fixed through the line clamping device, then the weaving line layer similar to a top knotting rope is directly woven on the fishing line through the weaving device, the weaving line is directly woven on the fishing line, tightly connected with the fishing line and has enough friction force, and after one end of the weaving line layer is fixed with the fishing line, the weaving line layer is stably connected with the fishing line, so that the fishing line is not prone to falling off. Even if the locking beans slide to the fishing line from the weaving line layer, the locking beans can easily slide back to the weaving line layer from the fishing line due to the fact that the connection between the weaving line layer and the fishing line is tight enough and stable.

The invention relates to a coalescence fiber with a special-shaped section and an air flotation device applying the coalescence fiber, the coalescence fiber is formed by weaving hydrophilic and oleophobic fibers and oleophylic and hydrophobic fibers, the section of the oleophylic and hydrophobic fibers is a special-shaped section, and the special-shaped section is one of a triangle, a cross shape, a groove shape and a circular arc shape. By weaving the hydrophilic and oleophobic fibers and the oleophylic and hydrophobic fibers and adopting a special-shaped section (triangular, crossed, groove-shaped or arc-shaped) design, the specific surface area and the surface roughness of the fibers are remarkably increased, and the adsorption and collision coalescence capability of the fibers on tiny oil drops is enhanced; a fine groove or hole structure formed by the special-shaped section is beneficial to generating a wicking effect and a differential capillary effect, and rapid coalescence and separation of emulsified oil drops are promoted, so that the oil-water separation efficiency is improved.