698 results about "Filament winding" patented technology

The invention relates to a spherical split type core mold tool for fiber winding and a winding forming method, and relates to the technical field of fiber winding forming, the spherical split type core mold tool comprises a main shaft, core mold petals and telescopic pieces connecting the main shaft and the core mold petals, each core mold petal is independently provided with a first telescopic piece, a second telescopic piece,..., an ith telescopic piece in the axial direction of the main shaft, and i is larger than or equal to 2; the core mold petals and the telescopic structures are connected through guide grooves formed in the core mold petals. The guide groove comprises a first groove and a second groove which are communicated, and the included angle alpha between the first groove and the second groove is larger than or equal to 90 degrees and smaller than 180 degrees. According to the tool, the core mold playing a bearing role in the winding process is divided into multiple sections, and the overall bearing performance in the winding process is guaranteed by means of the telescopic pieces; and after winding is finished, the mandrel petals are separated and rotated through cooperation of the telescopic pieces and the guide grooves, so that the maximum outer diameter of the tool is smaller than the opening diameter of the fiber shell, then the tool is withdrawn from the interior of the fiber shell, and therefore the winding forming efficiency is improved.

The invention discloses a multi-bundle fiber winding linear trajectory planning method and device and a medium, and relates to the technical field of fiber winding, and the method comprises the steps: determining a total center corner corresponding to an initial fiber winding linear trajectory according to a core model and initial winding parameters; setting a deviation range of a total central rotation angle, and determining a value range of the number of revolutions of a mandrel of the corresponding mandrel; setting a deviation range of the width of the fiber yarn tape, and determining a plurality of values of the number of circulation turns to obtain a plurality of mandrel rotation number values; according to the continuous fraction theory, the winding line type track tangent point number corresponding to each core mold mandrel revolution number value is calculated; screening out a plurality of winding line type tracks corresponding to the core mold and core shaft revolution number values meeting the tangent point number requirement and the coverage degree requirement; and screening out a fiber winding linear track meeting the multi-bundle winding requirement from the winding linear tracks meeting the tangent point number requirement and the coverage requirement. The scheme can be used for designing and planning a multi-bundle fiber winding linear track.

The present invention belongs to the technical field of pipeline repair devices, and specifically relates to an automated fiber winding device for repairing defective pipelines. The present invention includes two sets of fixing mechanisms arranged relatively to clamp defective pipelines, a fiber winding device arranged between the two fixing mechanisms, and a connecting device arranged on the two fixing mechanisms to connect the fixing mechanisms and the fiber winding device; the fixing mechanisms and the fiber winding device are both provided with a C-shaped cavity for accommodating the defective pipeline, and when installed on the defective pipeline, the corresponding opening directions of the C-shaped cavities on the fixing mechanisms and the fiber winding device are consistent; when winding fibers around the defective pipeline, the fiber winding device slides on the connecting device along the axial direction of the pipeline. The fiber winding device can be arranged above, on the side, and below the pipeline for fiber winding work, and occupies less space, which solves the problem in the prior art that the fiber winding device cannot be placed on the side of the narrow space where the pipeline is located, thereby failing to repair the pipeline in the narrow space.

The invention relates to a cylindrical petal type core mold tool for fiber winding, in particular to the technical field of winding forming, and the cylindrical petal type core mold tool for fiber winding comprises a main shaft, a first core mold petal and a second core mold petal, and the first core mold petal and the second core mold petal surround the main shaft and are alternately arranged; the first core mold section is connected with the main shaft through a first telescopic piece; the second core mold section is connected with the main shaft through a second telescopic piece; the shortening stroke of the first telescopic piece is smaller than the shortening stroke of the second telescopic piece. And the extension distance of the first telescopic piece is equal to that of the second telescopic piece. According to the cylindrical petal type core mold tool provided by the invention, a configuration mode of the movable core mold petals is adopted, so that a good winding effect can be ensured, rapid demolding can be realized through the contraction of the telescopic piece during demolding, the defects that a sand core mold needs to be cleaned and the mold needs to be manufactured again for multiple times are avoided, and the molding efficiency of a fiber winding molded body is favorably improved.

The invention discloses an IV-type hydrogen cylinder stress monitoring system, a signal processing method thereof and an IV-type hydrogen cylinder, and relates to the technical field of manufacturing of high-pressure hydrogen storage equipment. The carbon fiber winding layer stress monitoring structure and the liner stress monitoring structure are respectively arranged in a strain generation area of a carbon fiber winding layer and a strain generation area of the outer surface of a plastic liner in the IV-type hydrogen cylinder, so that the surface stress of the liner of the gas cylinder and the stress between carbon fiber winding layers can be dynamically monitored in real time; therefore, the IV-type hydrogen cylinder has the function of dynamically monitoring the stress between the carbon fiber winding layers and the stress of the inner container in real time. According to the signal processing method of the IV-type hydrogen cylinder stress monitoring system, high-frequency noise signals can be effectively filtered, low and medium-frequency signals can be reserved, and the surface stress of a carbon fiber winding layer and a plastic inner container can be accurately measured. The IV-type hydrogen cylinder is provided with the IV-type hydrogen cylinder stress monitoring system and has the function of dynamically monitoring the stress between carbon fiber winding layers and the stress of an inner container in real time.

The invention discloses a solid rocket engine composite material skirt connecting structure and a forming method thereof.The connecting structure comprises a composite material skirt, a skirt hole reinforcing ring, a connected cabin section and a connecting piece, the composite material skirt and the skirt hole reinforcing ring are integrally formed, and the rear end of the composite material skirt and the rear end of the skirt hole reinforcing ring are connected with the connected cabin section through the connecting piece; the connected cabin section is of an L-shaped nested inner lap joint structure and has the butt joint limiting and bearing functions, and the thickness transition section at the front end of the composite skirt is connected with a fiber winding structure layer of a combustion chamber shell. Compared with a traditional metal skirt connecting structure, the weight reduction effect is obvious, compared with a traditional composite skirt hinge block connecting structure, the connecting mode is simpler, and the fiber continuity of a composite skirt connecting area is guaranteed; the problems that in-plane shear rigidity and strength of the composite material are insufficient, and orifice positions are prone to damage are solved. The structure and the forming process are simple, the maturity is high, and the cost is low.

The invention belongs to the technical field of preparation of composite prepregs, and provides equipment and a method for preparing fiber arrangement micron-sized controllable ultra-thin composite prepregs. The equipment comprises a shell, a protofilament preparation assembly, a filament supply assembly, a fiber oxidation assembly, a fiber carbonization assembly, a fiber sizing assembly, a fiber tension control assembly, a fiber position adjusting assembly and a fiber winding assembly. According to the equipment and the method for preparing the ultra-thin layer composite material prepreg with the micron-sized controllable fiber arrangement, the fiber position can be accurately controlled, the micron-sized accurate arrangement of the fiber is realized, the uniformity and the regularity of fiber distribution are ensured, the mechanical property and the stability of the composite material can be remarkably improved, and the application prospect is wide. The appearance of a fat-rich region and a fiber-rich region is reduced; a nondestructive fiber treatment and layering method is adopted, and fiber tension and position are precisely controlled, so that fiber damage caused by fiber expansion in a traditional method is avoided, and integrity and strength of fibers are kept.

The invention relates to the technical field of composite material winding forming, in particular to a split type core mold tool for a fiber winding shell barrel section, which comprises a main shaft, a telescopic piece and core mold petals, the core mold petals are connected with the telescopic pieces through guide grooves formed in the inner surfaces of the core mold petals; the guide groove comprises a first groove and a second groove which are communicated with each other; an included angle alpha between the first groove and the second groove is more than or equal to 90 degrees and less than 180 degrees; the core mold petals are connected with the main shaft through telescopic pieces; at least two telescopic pieces are arranged in the axial direction of the main shaft; and the telescopic piece is connected with the main shaft through a sliding piece. According to the split type core mold tool for the fiber winding shell barrel section, by means of cooperation of the guide grooves, the core mold petals and the telescopic pieces, rapid demolding can be achieved after fiber winding forming is completed, the telescopic pieces are stretched to form the corresponding tool when the tool is used again, the fiber winding forming efficiency is remarkably improved, and the production cost is reduced. The production of a fiber winding forming body is facilitated.

The invention belongs to the technical field of fiber winding, and aims to solve the problems of serious fiber crossing phenomenon and low winding efficiency in the traditional winding technology. The multi-beam carbon fiber winding automatic control method based on multi-axis synchronization comprises the steps that mathematical characterization of a core model is constructed, and a spiral winding track of a wire nozzle is solved based on the mathematical characterization of the core model; the spiral winding track is converted into a cam synchronous movement curve associated with a virtual shaft, the virtual shaft is a hypothetical shaft and serves as a main shaft in the spiral winding process, and the virtual shaft is used for dynamically coordinating movement of a core mold rotating shaft, a core mold walking shaft, a wire nozzle feeding shaft and a wire nozzle rotating shaft through a cam synchronous mechanism; performing parameter configuration and procedure configuration of winding of multiple bundles of carbon fibers; equipment in the multi-beam carbon fiber winding device is reset, and the multi-beam carbon fibers are automatically wound based on the procedure configuration sequence. Efficient winding operation is achieved through a cam synchronization mechanism, and the winding requirements of different specifications can be met.

The invention relates to the technical field of composite pipelines, in particular to a continuous fiber winding reinforced polyethylene composite pipe and a preparation method of the continuous fiber winding reinforced polyethylene composite pipe. The fiber reinforced layer is wound on the inner-layer polyethylene pipe, the outer polyethylene protective layer is wound outside the fiber reinforced layer, and the outer reinforced pipe is wound on the surface of the outer polyethylene protective layer. The continuous fiber winding reinforced polyethylene composite pipe prepared by the invention has excellent flexibility, the production process is simple, the production efficiency is high, and all production procedures of multi-layer compounding can be realized through one station.

The invention discloses a high-strength photovoltaic module structure and a preparation method thereof.The high-strength photovoltaic module structure comprises a core structure used for improving the elasticity modulus, fiber reinforcing layers are arranged on the end faces of the two sides of the core structure, the fiber reinforcing layers arranged on the end faces of the two sides are connected at the side edge parts, and fiber winding surrounding parts are formed on the side edges of the core structure; all the side faces of the periphery of the core structure form full-connection type fiber binding reinforced fixing. Fiber winding is carried out on the side edge of the honeycomb structure photovoltaic module, fibers in a lower panel of the photovoltaic module are connected with fibers in an upper panel of the photovoltaic module, the bending rigidity of the photovoltaic module can be further enhanced, and the fibers in the lower panel of the photovoltaic module and the fibers in the upper panel of the photovoltaic module are connected in the mode that the fibers are wound on the side edge. The bending rigidity of the photovoltaic module is effectively enhanced, and the problem that the improvement of the bending rigidity is limited due to weak side edges of the module in the prior art is solved.

The utility model discloses a mold for manufacturing a composite material grating cone by a fiber winding process, belongs to the field of composite material molds, and solves the manufacturing problem of the existing grating cone. The mould comprises a conical mould main body, an upper steering nail ring, a lower steering nail ring, an upper flange, a lower flange, a rotating shaft and a silica gel soft film, wherein the rotating shaft sequentially penetrates through the upper flange, the conical mould main body and the lower flange; the conical mold body, the steering nail ring, the upper flange and the lower flange are coaxially matched, the upper steering nail ring is connected to the conical mold body through the upper flange, the lower steering nail ring is directly connected with the conical mold body, the lower flange is directly connected with the conical mold body, and the silica gel mold is formed by splicing one or more plane soft molds. The plurality of blades are circumferentially distributed on the outer surface of the conical mold main body; orthogonal grating grooves are formed in the surface of the silica gel mold, and the grating grooves are composed of grating strips in the axial direction and the circumferential direction. The mold is mainly used for manufacturing conical structures by fibers or prepreg tapes.

The invention discloses a fiber winding composite material pressure vessel defect evaluation method based on ultrasonic detection, and particularly relates to the technical field of defect evaluation, which comprises the following steps: simplifying a fiber winding structure into a net structure based on attribute difference and interaction relationship between fiber and resin; modeling is conducted by considering the resin filling position and the interaction relation between resin and fibers, the ultrasonic frequency, the pulse width, the excitation point position and the receiving point position transmitted by equipment are calibrated on the basis of a simulation model and applied to an actual container, a phased array is used for transmitting a pulse signal at a preset excitation point, and the signal is received at a preset receiving point; based on different incident angles of the pulse signals, ultrasonic echo data fully covered at the receiving point are collected, an incident angle evaluation model is constructed, incident angle evaluation coefficients at different ultrasonic incident angles at the excitation point are generated, and the optimal incident angle at the excitation point is obtained. The surface defect identification method is beneficial to surface defect identification, and the defect detection capability is enhanced.

The invention relates to the technical field of epoxy resin, in particular to an epoxy resin composition for high-strength carbon fiber winding and a preparation method thereof.The preparation method of the epoxy resin composition comprises the steps that S1, modified epoxy resin, a compatilizer, a retarder, a defoaming agent and nano filler are added into a reaction kettle and mixed and stirred, and a mixture A is obtained; s2, a composite curing agent is added into the mixture A, stirring and mixing are conducted, and the epoxy resin composition is obtained and has the advantages of being appropriate in viscosity, good in heat resistance, excellent in impact resistance, large in bending strength, small in volume shrinkage rate in the curing process, moderate in gelation time and capable of being wound with carbon fibers conveniently to prepare the composite material.

The invention relates to the technical field of composite material pressure vessel forming, and discloses a composite material pressure vessel inner container with reinforcing ribs, which comprises a cylinder body, sealing heads are arranged on the two sides of the cylinder body, the cylinder body section is provided with a plurality of cylinder body reinforcing ribs which are arranged at equal intervals along the axial direction of the cylinder body; the invention further discloses a manufacturing method of the composite material pressure container inner container with the reinforcing ribs, and the manufacturing method comprises the following steps that S1, segmented molds are designed and manufactured, and the molds comprise the inner mold and the outer mold; and S2, carbon fiber prepreg is laid on the surface of the inner mold to form a carbon fiber cylinder body section. The structural strength and uniformity of the inner container are optimized through design of reinforcing ribs and filling of a circumferential fiber winding reinforcing layer, the thickness of the reinforcing ribs is calculated based on the difference value between the minimum thickness and the thickness of the end socket, in winding forming, a co-curing process is adopted to be matched with a high-precision mold, an inner mold is fused into the inner container to provide support, and meanwhile, the thickness of the reinforcing ribs is reduced. And the interface strength is optimized through inner mold supporting and a laminated gradient structure.

The utility model belongs to the technical field of pipeline materials, and particularly relates to a composite pipeline material. The utility model provides a composite pipeline material. The composite pipeline material comprises an inner surface layer, an inner fiber cloth reinforcing layer, an inner fiber winding layer, a fiber reinforcing structure layer, an outer fiber cloth reinforcing layer, an outer fiber winding layer and an outer protection layer which are sequentially stacked from inside to outside. The inner surface layer is made of epoxy resin; fibers in the inner fiber cloth reinforcing layer, the inner fiber winding layer, the fiber reinforcing structure layer, the outer fiber cloth reinforcing layer and the outer fiber winding layer are basalt fibers; and the outer protection layer is made of epoxy resin. According to the utility model, the epoxy resin and the basalt fiber have good electrical insulation performance and shielding performance, so that the pipeline material has a good stray current resisting effect.

The invention discloses a plastic inner container full-carbon-fiber winding gas cylinder with high fire resistance and a preparation method of the plastic inner container full-carbon-fiber winding gas cylinder, and belongs to the technical field of hydrogen storage cylinder preparation. The preparation method comprises the following steps that (1) PA6 serves as a base material, a plastic inner container is obtained through an injection molding technology, and a bottle opening is reserved in the top of the plastic inner container; (2) water-borne epoxy resin, a flame-retardant additive, ethanol and a curing agent are mixed to obtain slurry, and the flame-retardant additive is prepared through a reaction of a diamine monomer and bis (2, 3-dibromopropyl) phosphate; and (3) carbon fibers are soaked in the slurry to obtain soaked fibers, the soaked fibers are wound to the outer side of the plastic inner container and are heated and cured to form a fiber winding layer, and a bottle mouth connector is installed at a bottle mouth. The flame-retardant additive added into the slurry can endow the gas cylinder with good fireproof and flame-retardant effects, and can form a compact cross-linked network with the epoxy resin, so that the overall fireproof uniformity, sealing property and deformation resistance of the gas cylinder are improved, and the service life is prolonged.

The invention discloses a thermoplastic composite material double-laser laying and winding head device and a processing method. A torque motor is connected with a composite material tape reel; one end of the tension adjusting mechanism is connected with the composite tape reel, and the other end is connected with the pressure cylinder; the support is connected with the side surface of the tension adjusting mechanism 4; the re-conveying mechanism is fixed to the middle of the tension adjusting mechanism, the first laser head and the second laser head are fixed to the bottom of the tension adjusting mechanism, and the shearing mechanism is located between the re-conveying mechanism and the pressing mechanism. The re-conveying mechanism can be used for re-conveying the composite material strip to a proper position below the pressing mechanism after the composite material strip is cut off; the shearing mechanism is used for shearing the composite material strip when the composite material strip needs to pass through the jump point; the pressing mechanism attaches the composite material strip to the surface of a workpiece in a rolling mode, the shearing mechanism shears the composite material strip, and the composite material strip is laid and wound on the workpiece to form a base material; the pressing mechanism is used for pressing the composite material strip on the base material; the side face of the pressing mechanism is connected with a pressing roller cooling water faucet. According to the invention, the thermoplastic composite material is heated through double laser, so that the reliability of interlayer bonding of the composite material can be improved, the interlayer strength of the thermoplastic composite material is improved, and the laying and winding quality and efficiency of the thermoplastic composite material are improved.

A method, device, medium, and product for pattern design in filament winding is provided. The method includes: acquiring parameter data of a target elbow pipe mandrel; constructing a mandrel geometric model according to the geometric dimension parameters; the mandrel geometric model includes a geodesic mathematical model of a ring segment and a non-geodesic mathematical model of a cylindrical segment; the ring segment is an elliptical section annular elbow pipe; the cylindrical segment is an elliptical section pipe; determining number of yarns of the ring segment according to the geodesic mathematical model and set parameter data, and determining geodesic trajectory information of the ring segment; determining non-geodesic trajectory information of the cylindrical segment according to the non-geodesic mathematical model and a set slip coefficient; determining a filament winding pattern according to the geodesic trajectory information of the ring segment and the non-geodesic trajectory information of the cylindrical segment.

The invention discloses a fiber winding mechanism and a manufacturing device of a composite pile. The fiber winding mechanism comprises a rotatable rotating ring, a fiber winding mechanism and a fiber winding mechanism, wherein a winding hole allowing a pipe pile to penetrate through is formed in the middle of the rotating ring; the pre-impregnation unit is rotatably arranged on the rotating ring and rotates along with the rotating ring in the circumferential direction of the pipe pile so as to wind fibers to the outer surface of the pipe pile; wherein the pre-impregnation unit rotates along the circumferential direction of the pipe pile along with the rotating ring, and the pre-impregnation unit can rotate relative to the rotating ring, so that the included angle between the pre-impregnation unit and the horizontal plane is kept constant. According to the composite pile, the fibers are firmly bonded to the peripheral wall of the pipe pile, the corrosion resistance, impact resistance and soil friction resistance of the composite pile can be improved, meanwhile, the presoaking pool is always kept horizontal or forms a constant included angle with the horizontal plane, and leakage of presoaking liquid is avoided.

The invention relates to a nanofiltration membrane element and a production process thereof, and relates to the technical field of membrane separation, the nanofiltration membrane element comprises a central pipe, a membrane unit piece and a fiber winding layer, the central pipe is provided with a plurality of water inlet holes, the membrane unit piece is wound on the outer side of the central pipe, the fiber winding layer is wound on the outer side of the membrane unit piece, and the membrane unit piece comprises a membrane, water inlet mesh cloth and runner cloth; the runner cloth is divided into two cloth layers in the thickness direction of the runner cloth, and each cloth layer is provided with a filtering area, a glue line area and a side line area. A plurality of supporting lines are clamped between the two cloth layers, the supporting lines are located in the filtering area, all the supporting lines are arranged in the axial direction of the center pipe, the supporting lines extend in the radial direction of the center pipe when the cloth layers are in the spreading state, and one ends of the supporting lines are bonded to the positions, away from the connecting edges, of the glue line area; and a gap between the two cloth layers is communicated with the water inlet hole. The compressive strength of the runner cloth can be improved, so that the water passing amount is increased.

The invention relates to the field of chemical fiber filament coiling, in particular to an adjustable chemical fiber filament coiling device which comprises a mounting bottom plate, a coiling adjusting unit is arranged at the upper end of the mounting bottom plate, and a winding unit used for controlling filaments to reciprocate left and right is arranged on the front side of the coiling adjusting unit; the coiling adjusting unit comprises a fixing cylinder, arc-shaped plates which are evenly distributed in the circumferential direction are arranged outside the fixing cylinder, and an adjusting assembly used for controlling the arc-shaped plates which are distributed in the circumferential direction to synchronously move inwards and outwards in the radial direction of the fixing cylinder is arranged in the fixing cylinder. According to the filament winding device, continuous, powerful and elastic pressing can be conducted on filaments in the winding process, the filaments are tightly and orderly wound on the arc-shaped plates arranged in the circumferential direction, the filaments are prevented from moving or loosening in the winding process, winding stability can be kept easily, and the quality and strength of products are improved.

The utility model relates to the technical field of fiber winding machines, and discloses a continuous unwinding and storing mechanism for a fiber winding machine, which comprises a first rack and a second rack which are sequentially arranged, two groups of unwinding mechanisms are arranged on the first rack, and each group of unwinding mechanism corresponds to a group of lining cloth recycling mechanism and a guide wheel group; a fiber film bonding mechanism, a pressing wheel mechanism and a storage mechanism are sequentially arranged on the second rack, the storage mechanism comprises a storage lifting frame in sliding fit with the second rack, a plurality of lower rollers are arranged on the storage lifting frame, a plurality of upper rollers are correspondingly arranged at the top of the second rack, and the upper rollers and the lower rollers are all connected with a driving mechanism; the material storage lifting frame ascends and descends to realize continuous conveying of fiber rubber sheets; the unwinding mechanism is provided with a driving piece for active unwinding, the fiber rubber sheet is prevented from being snapped during unwinding, and the material storage mechanism meets the continuous and uninterrupted conveying requirement for the fiber rubber material during continuous winding of the fiber winding machine.

The invention discloses a composite material pressure container suitable for a liquid oxygen environment and a preparation method of the composite material pressure container, and belongs to the technical field of composite materials. The composite material pressure container suitable for the liquid oxygen environment sequentially comprises a thin-wall metal lining layer, a transition layer and a fiber winding composite material layer from inside to outside, the transition layer comprises fluorine-containing polyarylether; the fiber winding composite material layer is formed by carbon fiber woven cloth dipped with composite epoxy resin and carbon fiber yarns on the lining layer in a continuous annular and spiral cross winding manner; matrix resin in the composite epoxy resin comprises bromine-containing epoxy resin and / or chlorine-containing epoxy resin. By arranging the thin-wall metal lining layer, the transition layer and the fiber winding composite material layer, each layer of structure has good liquid oxygen compatibility; and by arranging the transition layer, the combining capacity of the thin-wall metal lining layer and the fiber winding composite material layer is further improved, and then the overall mechanical property and anti-permeation performance of the pressure container are improved.

The utility model belongs to the technical field of reeling equipment, and particularly relates to a high-strength folding-resistant polyester composite filament reeling device which comprises a base, a partition plate is fixedly arranged in the base, a motor is fixedly arranged on the front face of the base, and the output end of the motor penetrates through the inner wall of the front face of the base and is fixedly provided with a winding cylinder. Through the arrangement of the rotating rod, the tool apron, the connecting shaft, the positioning screw rod, the scraper knife, the pressing rod, the limiting strip, the containing hole, the spring and the ejector rod, the scraper knife is installed in the tool apron before cleaning, the pressing rod extrudes the scraper knife, rapid positioning of the scraper knife can be achieved, and the scraper knife can be conveniently and rapidly cleaned. And after installation is completed, the angle of the scraper knife is adjusted through the rotary disc, then the motor is started, the motor drives the winding barrel, the scraper knife is attached to the surface of the winding barrel, cleaning of the polyester yarn can be achieved, manual cleaning of related personnel is not needed, and the labor amount is reduced.

The utility model relates to the field of new material fiber production, in particular to a fiber filament winding device capable of automatically adjusting tension, which comprises a control cabinet, a winding roller and a feeding roller are horizontally arranged on the working surface of the control cabinet, a movable wiring module is arranged on the control roller, and the feeding roller is arranged on the control cabinet. The control cabinet is fixedly provided with an adjusting module capable of automatically adjusting the tension of the cellosilk, and the control cabinet is further provided with a monitoring module capable of monitoring the tension of the cellosilk; according to the fiber filament winding device capable of automatically adjusting the tension, the tension of the fiber filaments can be preliminarily adjusted, large tension deviation can be rapidly eliminated, instability of a system during starting or material switching is reduced, the tension of the fiber filaments can be further finely adjusted, tension fluctuation during movement of the fiber filaments is reduced, and the service life of the fiber filaments is prolonged. The consistency and the stability of the tension are ensured, and the tension of the cellosilk during winding can be monitored in real time, so that automatic adjustment is carried out in real time.

The invention relates to the technical field of high-pressure containers for storing liquid or gas, in particular to a large-diameter resin-based composite material high-pressure container and a design method thereof.A preliminary fiber winding composite material pressure container is designed according to the grid theory, and the pressure container is optimally designed through a water pressure bursting test and finite element verification; under the action of a PLC control system, a multi-dimensional winding machine is utilized, a steel inner container serves as a mold, the fiber soaked with the resin solution is wound to the outer wall of the mold, fiber winding tension in the fiber winding annular direction and the fiber winding spiral direction is calculated according to the fiber winding thickness and the fiber winding angle, curing treatment is carried out, and the fiber winding tension in the fiber winding annular direction and the fiber winding spiral direction is obtained. According to the large-diameter resin-based composite material high-pressure container and the manufacturing method thereof, optimization design is conducted on the large-diameter resin-based composite material high-pressure container, the high-quality fiber-reinforced epoxy resin composite material is selected as a base body, and double improvement of strength and light weight is achieved through accurate fiber laying angle and density control.

The invention discloses an automatic laying and forming process for a reinforcing ring of a carbon fiber fully-wound gas cylinder end socket, and relates to the technical field of carbon fiber wound gas cylinders. Technological parameters are simulated and optimized; the laying line type is imported into software to plan the motion track of the robot; carbon fiber prepreg is adopted, single-layer prepreg laying is conducted between every two spiral layers of the gas cylinder according to the optimal process parameters, and the laminating state of the prepreg is monitored in real time. Full-automatic precise laying can be achieved, and the production efficiency and consistency are improved; the material utilization rate is improved; the manufacturing cost is reduced; the laying wrinkle defect is eliminated, and the gas cylinder bearing safety is improved; process parameters are quantified and optimized, and the performance of the carbon fibers is fully released.

The invention discloses a composite barrel-shaped pressure-resistant shell integrated forming mold and a preparation process thereof, and belongs to the field of submersible pressure-resistant shells. The device is of a barrel-shaped structure formed by rotating a curve with a positive Gaussian curvature. After a plurality of groups of non-preferential circular arc surface sections and preferential circular arc surface sections are arranged at intervals to form a barrel-shaped structure, the top end and the bottom end are fixedly spliced through flanges to form a complete mold for preparing the pressure-resistant shell; a plurality of groups of uniformly distributed annular grooves are formed in the surface of the mold; the fibers are infiltrated with reinforced resin; performing integral winding and curing molding on the mold by adopting a fiber winding process; and naturally cooling and demolding. The mold manufactured by the method is simple and easy to understand, is formed by assembling a plurality of preferential and non-preferential arc surface sections, can realize the preparation of the positive Gaussian curvature reinforced shell, and is convenient to demold.

The invention provides a fireproof high-pressure hydrogen storage cylinder and a preparation method thereof, and relates to the technical field of hydrogen storage cylinders. The hydrogen storage cylinder comprises a plastic inner container, and a carbon fiber winding layer, a resin isolation layer and a fire-resistant fiber winding layer which are sequentially arranged on the outer side of the plastic inner container. According to the hydrogen storage cylinder, the carbon fiber winding layer, the resin isolation layer and the fire-resistant fiber winding layer are reasonably arranged on the outer side of the plastic inner container, the problem that an existing plastic inner container full-winding composite material gas cylinder is poor in use safety is solved, and the obtained hydrogen storage cylinder has good fire resistance and heat insulation performance and air tightness and is excellent in weather resistance and fatigue resistance.