167 results about "Fiber breakage" patented technology

The invention discloses an chemi-mechanical pulp production method capable of improving the filtration property of chemi-mechanical pulp, and relates to the technical field of papermaking, high-concentration grinding freeness is optimized to 640 + / -30ml, pulp fine fibers can be controlled at 22%-33%, the tensile index middle-lower limit and the bulk middle-upper limit, the high-concentration grinding effect is improved, the effect between fibers is facilitated, the effect between the fibers and a grinding sheet is reduced, and the filtration property of the chemi-mechanical pulp is improved. Fiber cutting is reduced, and the content of pulp fine fibers is reduced; the MSD torque is increased to 250 + / -10 KNM, the tearing effect of wood chips is improved, the preimpregnation reaction of the wood chips is facilitated, the original fine content is controlled to 26%-29% from original 22%-33%, the pulp bulk is increased by about 0.1 cm < 3 > / g, and the tensile index is increased by 1.0 N.m / g; the four low-concentration grinders are changed into parallel connection, so that the residence time of pulp in the low-concentration grinders is prolonged, the cutting effect of the pulp ground by the low-concentration grinders on fibers is reduced, light friction between grinding sheets and the fibers is increased, fibrillation of the fibers is facilitated, the bulk and the tensile strength are improved to a certain extent, and under the content of fine fibers, the size of the fibers is reduced. And the bulkiness and the tensile index of the finished pulp are also improved to a certain extent.

The invention discloses a high-toughness anti-ultraviolet PET (Polyethylene Terephthalate) fiber and a preparation method thereof, belongs to the technical field of polyester fibers, and is used for solving the technical problem that the mechanical strength, the ultraviolet resistance and the moisture absorption and quick drying performance of the PET fiber in the prior art need to be further improved. The invention relates to a high-toughness anti-ultraviolet PET (Polyethylene Terephthalate) fiber which is prepared from modified PET, modified polyester, modified montmorillonite, epoxy modified polysiloxane and an additive in a weight ratio of (55-60): (30-35): (10-16): (20-30): (3-5), according to the invention, the modified montmorillonite is used as a heterogeneous nucleation point, and a PET molecular chain composed of the modified PET, the modified polyester and the epoxy modified polysiloxane is induced to be arranged in a height orientation manner along the drafting direction, so that the breaking strength of the PET fiber is improved, a relatively high elongation at break is maintained, and the anti-ultraviolet effect and the moisture-absorbing and quick-drying performance of the PET fiber are improved.

The invention provides a modified engineering plastic melt index real-time monitoring method which comprises the following steps: determining a melt index difference value of adjacent monitoring points by acquiring a melt index value of each section of an extrusion production line; obtaining the number of shearing cycles of the extrusion production line, identifying the fiber shearing damage degree of each section according to the melt index difference and the number of shearing cycles to obtain fiber damage distribution, and determining the fiber fracture position according to the fiber damage distribution; the melt index difference value corresponding to the fiber fracture position is analyzed by obtaining the melt index of the fiber fracture position, and the monitoring point interval is dynamically adjusted through the melt index difference value; and obtaining the melt index value and the fiber shortening amplitude after the interval adjustment of the monitoring points, and comparing the melt index change and the fiber length loss of each monitoring point to obtain the corresponding distribution of the fiber shortening amplitude and the melt index value.

The invention relates to the field of material detection, and discloses a tensile strength detection device and process for production quality inspection of a new material medical tourniquet. Which comprises a controller, a machine frame, a vertical screw rod transmission mechanism fixed on the machine frame, a lower clamping device driven by the vertical screw rod transmission mechanism to ascend and descend, and an upper clamping device located over the lower clamping device and fixed relative to the machine frame, and is characterized by further comprising a follow-up shielding mechanism and a damage recognition mechanism; the follow-up shielding mechanism comprises a left shielding plate and a right shielding plate, and the left shielding plate and the right shielding plate cover the top exposed area of the vertical lead screw transmission mechanism. The damage identification mechanism generates a trigger signal when fiber fracture or local damage occurs to the sample, the damage identification mechanism is electrically connected with the controller, and the controller is electrically connected with a driving motor of the vertical lead screw transmission mechanism. According to the invention, fiber damage caused by defects of the sample during initial detection can be identified, so that the problems of invalid detection and fiber scattering are reduced.

The present application relates to the technical field of cotton fiber detection. A kind of intelligent beam fiber strength tester, including cabinet, industrial computer, sliding table module is provided in cabinet, sectional material frame, air cylinder, beam fiber clamping mechanism, stepper motor, lever type pull rod, force sensor, displacement sensor, resistance detection plate, A / D acquisition conversion module;The application method of the tester, steps include: under normal environmental conditions, beam fiber clamping mechanism clamps fiber sample, obtains moisture regain R by resistance moisture regain conversion program conversion;Stepper motor drives lever type pull rod to stretch sample, data is made into the tensile curve F (e) of beam fiber sample-e by industrial computer, and machine learning model predicts the corrected breaking strength value and elongation rate.The present application is simple and reasonable in structure, can realize the quick and accurate measurement of cotton beam fiber breaking strength value and breaking elongation rate under different humidity conditions in normal environment, is high in informatization degree, economic and practical, and improves the accuracy of test result.

The utility model discloses a rotary tensile test structure for washing-resistant terylene grey cloth, and relates to the technical field of tensile test of terylene grey cloth. The rotary tensile test structure comprises a bottom plate, a PLC (programmable logic controller) and a touch screen are fixedly mounted above the bottom plate, and a stretching mechanism for stretching the grey cloth and a fixing mechanism for fixing two ends of a grey cloth sample are mounted above the bottom plate. The stretching mechanism comprises sliding rails fixed to the left side and the right side of a bottom plate, the rotating speed of a winding motor and the retraction rate of a stretching piston are coordinated through a PLC so that the winding tightness can be guaranteed, a ratchet wheel at one end of a limiting pipe can prevent the limiting pipe from rotating under the limitation of a pawl, the stretching piston stretches after winding is completed, and a gray fabric sample is stretched. According to the mode, the pressing plate in the limiting pipe only plays a temporary fixing role, the stress contact surface is enlarged through multi-layer wrapping, the unit area pressure is reduced, and therefore the risk of local indentation or fiber breakage is reduced.

The application discloses a constant-tension-based textile multidirectional tensile strength automatic testing device and method, relates to the tensile strength detection technical field, and comprises a rigid frame system; a high-elastic fabric optical response mechanism is integrated on a double-column portal frame of the rigid frame system and is used for reacting fiber damage processes through light transmittance and light spot change of the fabric; the high-elastic fabric optical response mechanism comprises a sealed light isolation component, a light source component and an imaging component; the light source component comprises a pulse LED light source array, a lampshade and a horizontal movement driving unit which are equidistantly arranged along a fabric stretching direction. The application improves the prior art which can only record the limit value when a sample is completely broken and cannot capture microcracks generated by fiber step-by-step failure in a stretching process when the fabric tensile strength is detected. The application has the advantages that the fiber breaking process in the fabric can be directly reflected through light spot change formed by light penetration of the fabric when the fabric tensile strength is detected.

The invention discloses a method for evaluating the residual strength of a multi-scale fiber-reinforced flexible pipe under a stretch-bending load, and relates to the technical field of structural strength evaluation of ocean engineering composite materials, and the method comprises the following steps: extracting fiber distribution characteristics by adopting digital image processing based on a scanning electron microscope image; a Monte Carlo method is combined to construct a two-dimensional RVE geometric model of the fiber reinforced structure containing the damp-heat degradation, and macroscopic elastic parameters are predicted; a VUMAT user material subprogram containing dynamic damage is written based on Fortran, damage starting and evolution failure criteria of a fiber reinforced structure are embedded, and the nonlinear coupling evolution process of multiple damage modes such as fiber fracture, matrix cracking and interface debonding is simulated. According to the method, a material-damage-response multi-scale analysis framework is constructed by coupling microscopic material components, a microscopic damage model and macroscopic pipeline structure analysis, the problem that a traditional method lacks multi-scale damage coupling analysis under a complex load is solved, and the residual strength evaluation precision of the pipeline under the action of a stretching-bending combined load is improved.

This invention belongs to the field of graphene fiber processing technology, and relates to a two-step sizing process for graphene fibers. The sizing agent used in the first sizing step is denoted as sizing agent A, and the sizing agent used in the second sizing step is denoted as sizing agent B. Sizing agent A comprises a cationic polyether polyurethane slurry, a volatile ester co-solvent, and water; sizing agent B comprises a cationic polyether polyurethane slurry, a lubricant, and water. The lubricant is one or more of the following: polyether-modified polydimethylsiloxane, polyether-modified heptamethyltrisiloxane, oxidized polyethylene wax emulsion, polytetrafluoroethylene emulsion, and polyethylene glycol monooleate. After sizing, a polyurethane film layer forms on the fiber surface, which can absorb and disperse stress, improve bundle strength, bending performance, and abrasion resistance, solve the problems of fiber breakage and flyaways, and simultaneously fill the gaps between fibers, improving electrical and thermal conductivity to meet the requirements of high-speed weaving processing.

The utility model relates to the technical field of optical fiber end face machining, in particular to a novel optical fiber end face grinding device which comprises a workbench. The grinding machine comprises a time setting panel, a display panel, a grinding rotating disc rotating switch and a clamp cylinder rotating switch, the rapid locking device is arranged, and the driving ring is simply pressed, so that the half-petal plate can be unfolded and folded, and the optical fiber can be rapidly mounted and locked; complex multi-step operation is not needed, the optical fiber installation time is greatly saved, the working efficiency is improved, in the optical fiber installation process, due to the fact that the half-petal plates are stably unfolded and closed, and the force applied to the optical fiber in the locking process is uniform, the damage risk to the fragile optical fiber core without a coating layer and a protection layer is reduced, and the service life of the optical fiber is prolonged. The possibility of optical fiber breakage is reduced, and the optical fiber material cost is saved.

The invention relates to the technical field of flywheel energy storage system structure optimization, and discloses a flywheel energy storage system variable thickness flywheel profile optimization method, system, device and medium, and the method comprises the steps: building a dual-target optimization model, and taking the maximum unit mass energy storage density and the minimum maximum centrifugal stress as targets; the geometric boundary of the flywheel, the orthotropic property of the composite material and the lamination process constraint are considered, the reasonable and feasible design is ensured, and the failure states such as interlayer stripping or fiber fracture are reduced. And further parameterizing flywheel thickness distribution by adopting a third-order B-spline function, forming a design parameter space in combination with a fiber laying angle, setting a non-uniform node vector and an adjacent coefficient difference upper limit constraint, and ensuring radial smooth change of the thickness. An optimized data set is generated through finite element simulation based on a parameterized model, and a foundation is laid for physical information neural network training. The method provides a scientific, efficient and reliable design optimization scheme for the flywheel energy storage system, and assists energy transformation and sustainable development.

The present application relates to the technical field of aromatic polyamide polymer, in particular to a modified poly-p-phenyleneterephthalamide fiber with high elongation at break and a preparation method thereof.The present application introduces a small amount of 3,4'-diamino diphenyl ether and a fourth monomer containing a bis-amino phenoxy functional group during polymerization, and controls the molar ratio of the third monomer and the fourth monomer in the total amount of diamine monomer, thereby to a certain extent, the rigid molecular chain structure of the conventional p-aramid is destroyed, while the breaking strength of the fiber is maintained, the elongation at break of the polymer fiber is enhanced, the modified poly-p-phenyleneterephthalamide can still be prepared by dry spraying wet spinning process, the cost of building a new production line in the factory is saved, the process conditions and parameters are optimized, the fiber with stable elongation at break index is obtained, and the prepared fiber has an elongation at break of more than 3.6%.

This application belongs to the field of silicon core tube technology and discloses an underground communication silicon core tube with an anti-settlement compensation section structure. The core tube structure includes a core tube assembly and a connecting assembly. The core tube assembly includes two corrugated tube bodies with a certain degree of elasticity and two inserts fixed to the two end faces of one of the tube bodies. The end faces of the two tube bodies are close together. The end face of the other tube body has slots for insertion into the inserts. The number of slots is equal to the number of inserts, and their positions correspond one-to-one. This application, through improvements to the existing structure, reduces the difficulty of replacing damaged silicon core tubes compared to the existing one-piece molding method. Only the damaged part needs to be replaced, simplifying the construction process, reducing workload, and shortening the construction cycle. Furthermore, the corrugated structure reduces the probability of fiber breakage and transmission degradation caused by deformation stress transmitted to the internal optical cable.

This utility model discloses a novel silk fabric cutting device, including a housing. An arc-shaped cutting seat is fixedly connected inside the housing, and a guide plate is fixedly connected to the outer wall of the housing. A cylinder is fixedly connected inside the housing, and a U-shaped frame is fixedly connected to the bottom of the cylinder's output end. Two cylinders are fixedly connected inside the housing, and a blade holder is fixedly connected to the bottom of the U-shaped frame. A cutting blade is fixedly connected to the bottom of the blade holder. This utility model provides stable support for the novel silk fabric body from below through the arc-shaped cutting seat. The cylinder-driven U-shaped frame, with the sliding limit between the cylinders and the groove, ensures that the cutting blade always moves vertically and engages with the arc-shaped cutting seat. Combined with the compression limit of the rubber seat, it effectively prevents the novel silk fabric body from shifting during cutting, preventing edge fuzzing or fiber breakage.

This utility model discloses a fiberglass feeding device for preventing fiber breakage, including an operating table. A frame is fixedly installed at the lower end of the operating table. Fixed posts are fixedly installed at both the front and rear ends of the upper center position of the operating table. A sliding groove is provided inside the fixed post. A lead screw is installed inside the sliding groove. The upper and lower ends of the lead screw are rotatably connected to the inner wall of the sliding groove, respectively. A movable seat is sleeved on the outside of the lead screw. The movable seat slides and limits the sliding of the sliding groove, and one end of the movable seat extends to the outside of the sliding groove. An L-shaped fixed plate is fixedly installed on the outside of one end of the movable seat. A third fixed frame is installed above the L-shaped fixed plate. A tensioning cylinder is installed between the third fixed frames. The front and rear ends of the tensioning cylinder are rotatably connected to the third fixed frame. A servo motor is fixedly installed at the upper end of the fixed post. This structure solves the problems of insufficient fiber breakage prevention effect and inconvenient replacement of the winding drum.

The utility model discloses a quartz fiber yarn tension adjusting device belongs to fiber yarn tension adjusting technical field, solved the problem that the mechanical structure of quartz fiber yarn tension adjusting device in traditional technology will lead to the fiber fracture if tension control is improper, it includes: the yarn and the yarn function of collecting yarn when realizing in the tension adjustment through the first drive motor of base drive's both sides roller on the base, the second drive motor drives the rotation of screw rod, and the screw rod outer cover has the thread ring, because the thread ring is fixedly connected with the slide, so the thread ring can not rotate, but because the slide is connected with the guide rail, the thread ring will replace the force transmission of drive motor and convert into the force along the guide rail direction translation on the screw rod, thereby make the slide and the compression roller frame receive the force of second drive motor, and translate on the guide rail, realize the tension elimination of quartz fiber yarn, realize adjustable effect and realize the full automatic function of the yarn, the yarn and the yarn.

The invention relates to the technical field of alginic acid and derivatives thereof, and particularly discloses a modified antibacterial fabric and a preparation method thereof.The modified antibacterial fabric comprises, by weight, 20%-40% of modified alginic acid fibers, 10%-20% of antibacterial agents, 10%-20% of antibacterial agents and 10%-20% of antibacterial agents. 51%-75% of auxiliary fibers; 3%-8% of an antibacterial microcapsule; 0.5%-2% of a functional auxiliary agent; wherein the modified alginic acid fiber is prepared by blending and spinning alginic acid and a flexible polymer; the antibacterial microcapsule is of a core-shell structure, an alginic acid derivative is used as a shell, and a natural antibacterial agent and a slow-release agent are used as cores. Through the design of'alginic acid-flexible polymer blending modified fiber + natural essential oil beta-cyclodextrin controlled-release microcapsules', the pain points of the existing fabric are solved: the breaking strength of the modified fiber is 2.0-2.8 cN / dtex, the loss is less than or equal to 15% after 50 times of washing, and the wear resistance is improved; the microcapsules enable the initial antibacterial rate of the fabric to be greater than or equal to 99% and the retention rate to be greater than or equal to 90% after 30 times of washing; the fabric strength is larger than or equal to 300 N / m, the breathability is larger than or equal to 520 mm / s, and comfort is achieved.

The present patent application discloses novel compositions for conditioning fibers, these being particularly useful for softening, protecting color, improving combability, reducing volume and frizz, reducing wrinkling level, protecting against pilling, reducing permanent deformation, protecting against fraying, reducing fiber breakage caused by brushing, and / or reducing electrostatic charges of the fibers. It further discloses the uses thereof and related methods.

The utility model discloses a double-sided needling machine for producing papermaking felt, which belongs to the technical field of papermaking felt production, and is characterized by comprising a double-sided needling machine body, support rods are arranged on two sides of the front side of the double-sided needling machine body, and a support mechanism is arranged between the front sides of the two support rods. A suction mechanism is arranged on the front side of the supporting mechanism; the suction mechanism comprises an upper suction box, a lower suction box, a plurality of rollers and an elastic three-way pipe, and the top roller is rotationally connected to the bottom of the upper suction box. The problems that when a paper making felt moves, part of fibers are broken and fall off to form dust which is inconvenient to suck and remove, the fiber dust is easily diffused in a workshop, pollutes the working environment and harms the health of workers along with the movement of the paper making felt, and equipment failures are possibly caused by the accumulation of the fiber dust are solved.

The invention discloses a preparation method of a three-dimensional woven bionic bulletproof helmet, which comprises the following steps: pretreating an obtained fiber woven material for modifying the fiber surface to obtain a modified fiber; creating a 3D model diagram, and performing multi-layer three-dimensional weaving on the fiber bundles from the transverse direction and the longitudinal direction according to the 3D model diagram to obtain a preformed body. And in a mold, performing composite shaping on the preformed body through vacuum coating, resin injection, vacuumizing and low-temperature curing to obtain the helmet body. The obtained finished product has the advantages that the shock resistance is excellent, and the protection performance of the helmet is improved; the continuity of fibers is kept, the density of the helmet face is reduced through the bionic spider net structure, fiber breakage in the helmet is prevented, and the weight of the helmet is reduced while the bulletproof performance of the helmet is guaranteed; and 3, the comfort is good, and the comfort in the wearing process is improved. And 4, the quality stability is high: the stability of the helmet is improved by a resin impregnation and curing process, and the product quality of the helmet is ensured.

The utility model discloses bamboo pulp washing and deslagging equipment which comprises a conical deslagging device, a deslagging opening is formed in the outer surface of the lower end of the conical deslagging device, a discharging opening is formed in the upper portion of the outer surface of one side of the conical deslagging device, and a feeding opening is formed in the middle of the outer surface of the upper end of the conical deslagging device. A spiral conveyor is installed at the upper end of the feeding port and comprises a material tank, a gradually-shrunk hopper, a top plate, a motor, a rotating shaft, spiral blades and a discharging end, the discharging end is located at the lower end of the gradually-shrunk hopper, and the gradually-shrunk hopper is fixedly installed on the outer surface of the lower end of the material tank; and the discharge end at the lower end of the tapered hopper is connected with the feed port at the upper end of the conical slag separator. According to the bamboo pulp washing and deslagging equipment, axial stable feeding of pulp is achieved through spiral pre-acceleration, the probability that fibers collide with the device wall is reduced, and feeding turbulence is reduced, so that the integrity of the fibers is protected, and the probability that the fibers are broken is reduced.

This invention provides an anti-lifting and anti-counterfeiting tape and its manufacturing method. From top to bottom, it comprises a substrate layer, an anti-counterfeiting pattern layer, and a pressure-sensitive adhesive layer with a functional gradient structure. The pressure-sensitive adhesive layer is an integrally molded single-layer structure, and in the thickness direction perpendicular to the plane of the substrate layer, the cohesive strength of the pressure-sensitive adhesive layer exhibits an asymmetric gradient distribution. The pressure-sensitive adhesive layer includes a high-cohesion region: near the anti-counterfeiting pattern layer, the chemical cross-linking density of which keeps the elastic modulus of this region within a preset range, thereby suppressing elastic stringing deformation of the adhesive under peeling force. This invention achieves effective interception and dissipation of the substrate's rebound stress by setting a low-modulus "high-wetting region" on the adhesive side and introducing an "internal stress self-adaptive layer" under the substrate. While ensuring long-lasting adhesion without lifting on curved surfaces, it avoids damage to the cardboard fibers caused by strong peeling, achieving a balance of "strong adhesion without fiber breakage."

The present invention relates to a single-layer or multi-layer structure for transporting, storing, or distributing compressed gases, particularly hydrogen, under high pressure, wherein the single-layer or multi-layer structure comprises at least one composite reinforcement layer constituting the outer skin of the structure, which is preferably semi-crystalline, conforming to standard ISO 11357-3: The structure comprises a fibrous material in the form of continuous fibers impregnated with a composition comprising at least one ductile thermoplastic polymer, having a glass transition temperature (Tg) measured according to 2013, wherein the Tg is less than or equal to the operating temperature To, or the Tg is higher than the operating temperature To, with |To-Tg| ≤ +120°C, in particular |To-Tg| ≤ +80°C, in particular |To-Tg| ≤ +50°C, and includes at least one composite reinforcement layer, wherein the impregnated fibrous material constituting the composite reinforcement layer, after integration, has a lateral fracture strain greater than the fracture strain of the fibers at the operating temperature and strain rate representative of use, in particular greater than 1.6%, in particular greater than 1.8%, in particular greater than 2%, and more particularly greater than 2.2%, and the structure does not include an internal seal layer.

This invention relates to the field of polymer material preparation, specifically to a method for preparing ultra-high molecular weight polyethylene (UHMWPE) coarse denier fibers. The method discloses a process where a spinning solution is extruded through a spinneret to obtain gel filaments. These gel filaments are then cooled twice, followed by preheating, stretching, oiling, and winding to obtain precursor fibers. The precursor fibers undergo multi-stage stretching to obtain UHMWPE coarse denier fibers. Through the two-stage cooling and preheating process, the "skin-core" structure of the fiber is first formed and then eliminated, allowing the solvent in the gel filaments to continuously precipitate out during the preparation process. This avoids fiber breakage and fuzzing caused by the "skin-core" structure during preparation. After the two cooling stages, a solid gel filament with a largely eliminated "skin-core" structure is obtained. Preheating softens and melts the solid gel filament, resulting in a stretchable gel filament. Finally, UHMWPE coarse denier fibers with high monofilament fineness and good mechanical properties are obtained.

The invention discloses an access network optical fiber breakage fault detection method and device. The method comprises the following steps: acquiring disconnection alarm data of a passive optical network (PON) interface and an optical network unit (ONU) in optical line terminal (OLT) equipment in a target access network; according to the disconnection alarm data, optical fiber links of multiple levels of light splitting nodes in the target access network are judged in sequence, and a judgment result is obtained, the judgment process of the optical fiber links of the multiple levels of light splitting nodes in the target access network comprises a first-level light splitting and fiber breaking judgment process, a second-level light splitting and fiber breaking judgment process and a home-entry side optical cable fiber breaking judgment process; and generating broken fiber alarm information according to a judgment result. The method provided by the invention at least solves the technical problem of low detection accuracy of the access network optical fiber disconnection fault in the related technology.

The invention discloses a high-density flexible optical fiber ribbon micro-cluster cable containing a hollow-core optical fiber and a multi-core optical fiber and a preparation method of the high-density flexible optical fiber ribbon micro-cluster cable, and belongs to the technical field of optical cables. The high-density flexible optical fiber ribbon micro-cluster cable comprises an optical fiber unit and an outer sheath arranged on the periphery of the optical fiber unit, and the outer sheath is divided into a first sheath part and a second sheath part in the radial direction; reinforcing pieces are embedded in the first sheath parts, the first sheath parts are arranged in pairs and arranged on the two sides of the optical fiber unit respectively, the two first sheath parts are connected through the second sheath parts, and the shrinkage rate of sheath materials in the first sheath parts is larger than that of sheath materials in the second sheath parts. According to the invention, by controlling the shrinkage rate of the circumferential sheath material of the outer sheath, the shrinkage rates of the sheath materials at different parts are different, so that the internal optical fiber unit is prevented from being extruded, and the probability of fiber breakage in the production of the micro-cluster cable is reduced. According to the invention, a conventional extrusion mode is adopted for molding, the problem of optical fiber breakage caused by a vacuum sizing process adopted by a conventional micro-cluster cable is avoided, the molding process of the micro-cluster cable is simplified, and the production efficiency of the optical cable is improved.

The utility model discloses a polypropylene staple fiber cutting device which comprises a winding device and a vertical plate, a conveying device used for conveying polypropylene staple fibers is fixedly installed on one side of the winding device, and a cutting device used for cutting the polypropylene staple fibers is arranged between the winding device and the conveying device. The outer wall of the vertical plate is detachably connected with the moving end of the cutting equipment, a cutting blade is detachably installed on the side, close to the polypropylene staple fibers, of the vertical plate, supporting plates are rotatably installed on the two sides of the vertical plate through torsional springs in the vertical direction, and a smearing roller used for lubricating the polypropylene staple fibers is detachably installed between every two adjacent supporting plates; the polypropylene staple fibers are located between every two adjacent smearing rollers. According to the utility model, through the mutual matching of all the parts, burrs generated during cutting can be reduced, the phenomenon that fibers fly off after the polypropylene fibers are broken can be better avoided, and the influence on the operating environment and the working environment of equipment is reduced.

The carding device for the cashmere carding equipment comprises feeding rollers, a licker-in and a dust cage which are sequentially connected, a cotton feeding plate is arranged above the feeding rollers, the inner side face of the cotton feeding plate is in an arc shape and is in clearance fit with a second feeding roller, and the rotating direction of the feeding rollers is opposite to the rotating direction of the licker-in; a dust cage cleaning roller is arranged below the dust cage, at least two elastic stirring pieces are arranged on the surface of the dust cage cleaning roller in the axial direction and arranged at intervals in the circumferential direction, and when the dust cage cleaning roller is rotated, the outer edges of the elastic stirring pieces make contact with the dust cage and are used for peeling down fluff attached to the surface of the dust cage. A forward cotton feeding mode is adopted for feeding, the fiber transfer angle is small, fibers are smooth, fiber breakage is reduced, the fiber damage degree is reduced, and the device is particularly suitable for cashmere fibers with soft texture.

The invention discloses a carbon fiber building composite reinforcing mechanism, and relates to the technical field of reinforcing mechanisms, and the carbon fiber building composite reinforcing mechanism comprises an angle adjusting mechanism, four tightening mechanisms and two flattening mechanisms. In the carbon fiber cloth reinforcing construction, related mechanisms utilize a first motor to drive a bevel gear set transmission system and drive a two-way lead screw to conduct self-locking type clamping, it is ensured that the carbon fiber cloth is evenly stressed, meanwhile, a tensioning program is started, a top clamping device is made to synchronously move outwards through a gear and rack linkage device, and the whole cloth is evenly tightened; in the process, wrinkles generated by carrying or gluing are thoroughly eliminated, it is guaranteed that the carbon fibers are linearly arranged in the main stress direction, the high-strength characteristic of the carbon fibers is fully activated, local stress concentration is avoided, the thickness of a glue layer can be accurately controlled in the tensioning state, the problem of internal stress caused by too thick glue layer is solved, and the situation of fiber breakage caused by stress concentration is avoided; the integrity of the whole material is ensured.

The invention relates to the technical field of biological manufacturing, and particularly discloses an active lignin fiber preparation method and mixing equipment thereof, and the active lignin fiber preparation method comprises the steps of raw material preparation, three-time mixing treatment and post-treatment. According to the preparation method, the problem of insufficient antibacterial property of the fiber in a humid environment is solved through chitosan addition and low-temperature plasma treatment, the antibacterial rate is greatly improved, then the interface bonding force of the fiber and a matrix is enhanced by adopting a silane coupling agent and ultrasonic treatment, and the peel strength is effectively improved; finally, the processing integrity is improved through the polyethylene glycol plasticizing and electrostatic spinning technology, the fiber fracture rate is greatly reduced, the problem of relevance among the antibacterial property, the interface bonding force and the processing integrity is effectively solved through different solutions, the prepared fiber has excellent comprehensive performance, and the use field is further expanded.