614 results about "Fiber spinning" patented technology

The invention discloses a wool type fiber spinning process precise control system and method, and relates to the technical field of fiber materials.According to the method, a perturbation gas injection groove is introduced into a spinning hole side structure, and gas injection parameters are collected in real time in combination with an MEMS micro-thermal film flow meter, a binocular infrared imager and other equipment; standardized preprocessing and feature extraction are carried out on gas injection data through a central control server, the directional deflection Odev can be accurately calculated, dynamic comparison and evaluation are carried out according to a deflection interval threshold value, and therefore the active regulation and control capacity on the initial deflection angle and the curling direction of fibers is achieved. Different from a traditional spinning process that fiber deflection completely depends on a mold, temperature or subsequent drafting disturbance, the method can construct a stable disturbance induction force field at the moment of fiber ejection, it is ensured that a fiber nascent path has consistency, directivity and predictability, and controllable guide conditions are provided for subsequent wool type structure construction.

The invention discloses a preparation method of lyocell fibers with antibacterial, heat-storage and temperature-regulation functions. The preparation method comprises the steps of pulp oxidation, phase change microcapsule preparation and fiber spinning post-treatment. The preparation method comprises the following steps: firstly, preparing graphene oxide dispersion liquid and phase change microcapsules with proper particle sizes, oxidizing cotton pulp to form a stable cross-linking effect with an antibacterial extract, then dissolving and co-spinning the cotton pulp into the lyocell fiber with the antibacterial, heat-storage and temperature-regulation functions, and weaving the fiber into a fabric which has the properties of repelling mosquitoes, absorbing moisture, ventilating, regulating temperature and storing heat, so that the antibacterial, heat-storage and temperature-regulation functions are realized. Meanwhile, excellent antibacterial performance and washing performance are achieved. According to the preparation method of the lyocell fiber with the antibacterial, heat-storage and temperature-adjusting functions, provided by the invention, the temperature-adjusting and antibacterial effects are lasting, the preparation process is green, simple and convenient, industrial production is facilitated, and the lyocell fiber can be widely applied to the fields of close-fitting household textile articles, medical textile articles and the like; wide market application prospects are realized, and certain market requirements are met.

The invention relates to high-wettability special-shaped polyester fiber spinning oil and a preparation method thereof. The preparation method comprises the following steps: weighing and preparing required materials according to actual use requirements; the method comprises the following steps: pre-balancing the materials under the condition of 35-45 DEG C before feeding; sequentially adding a smoothing agent, a bundling agent, an antistatic agent, a wetting and penetrating agent, an anti-coking agent and a wetting and penetrating auxiliary agent, and fully and uniformly mixing the materials in a manner of adding materials while stirring; the oiling agent disclosed by the invention is high-wettability special-shaped polyester fiber spinning oiling agent, and contains 5-10wt% of a main wetting and penetrating agent consisting of isotridecanol polyoxyethylene polyoxypropylene ether and pentaerythritol oleate, and also contains a wetting and penetrating auxiliary agent; due to the addition of the wetting and permeating auxiliary agent, the wetting and permeating performance of the oiling agent is greatly improved, the wetting and permeating performance of the oiling agent is excellent, and the oiling agent can well adapt to the production process of the special-shaped polyester fibers.

The invention relates to the technical field of high-performance polymer material processing, in particular to a high-strength and high-modulus polyethylene fiber spinneret plate forming system and method.The system comprises a melt state monitoring module, a dynamic rheological coordination module, a micro-flow field reconstruction module, a molecular chain orientation module and an extrusion stabilization module; wherein the melt state monitoring module is used for acquiring an orientation degree real-time value and a pressure fluctuation value of a melt at an inlet of a spinneret plate; the dynamic rheological coordination module is used for generating a shear rate adjusting instruction and a pressure compensation instruction; the micro-flow field reconstruction module responds to the instruction and outputs a melt meeting a preset shear distribution condition; and the molecular chain orientation module is used for generating an axial stretching flow field in the convergence flow channel. According to the invention, through a melt state driven multistage flow field regulation and control and chain segment orientation control mechanism, the cooperative guarantee of orientation degree improvement and extrusion stability in the high-strength and high-modulus polyethylene fiber spinning process is realized.

The invention relates to the technical field of hollow fiber preparation processes, in particular to a preparation process of a hollow fiber fabric with heat preservation, dryness and moisture absorption functions. The process comprises the following steps: firstly, selecting polyester, polylactic acid and polyester master batch as spinning raw materials, carrying out melt mixing, and carrying out hollow melt spinning by adopting a hollow fiber spinning plate to obtain hollow fibers; then, the hollow fiber obtained through spinning is made into yarn, and after the water washing or alkali washing process is conducted, the hollow fiber fabric is obtained through the weaving process; finally, the hollow fiber fabric is subjected to dipping modification treatment with the modification finishing liquid, and the hollow fiber fabric with the heat preservation, dryness and moisture absorption functions is obtained. Polyester and a small amount of polylactic acid are blended and then spun to obtain the hollow fiber, polyester master batches are added into the hollow fiber at the same time, the fiber wall of the hollow fiber can be damaged through subsequent water washing and alkali washing processes by means of addition of the master batches and the effect of the polylactic acid, moisture absorption is facilitated, and therefore the moisture absorption effect is improved; the prepared hollow fiber has a unique hollow structure, so that air is easily stored in the hollow structure, and a certain warm keeping effect is achieved; a certain groove structure is formed in the surface of the fiber, so that the fiber has a capillary effect and a good warm-keeping effect; the hollow fibers not only can quickly absorb moisture through the damaged outer wall, but also can facilitate moisture volatilization by virtue of the air permeability of the hollow fibers, so that the fabric can be quickly kept dry and comfortable.

The invention relates to the technical field of fiber production process simulation modeling, in particular to a Lyocell fiber spinning pulp porridge process simulation and quality prediction method and system.The method comprises the following steps that a simulation system is used for simulating the swelling process of cellulose in an NMMO solvent, and multiple sets of input and output data pairs are generated to construct a data set; a physical model of a simulation system is introduced into the gradient boosting tree algorithm to serve as regularization constraint, and an improved gradient boosting tree algorithm is obtained; and training an improved gradient boosting tree algorithm by using the data set to predict the quality of the Lyocell fiber spinning pulp porridge. According to the method, a slurry porridge quality prediction scheme based on simulation data and the improved gradient boosting tree algorithm is put forward for the first time, the slurry porridge research and development time and cost are greatly reduced, the improved gradient boosting tree algorithm integrates a physical model of a simulation system into a model training process by adding a physical constraint regularization item into a loss function, and the development efficiency of the slurry porridge is improved. The scientificity of a prediction result is enhanced, and the reliability of industrial application of the model is improved.

A preparation method of the blended modified antifibrillated lyocell fiber comprises three steps as follows: S1, a fibroin raw material and a cellulose raw material are dissolved in different NMMO / water mixed solvents respectively, and a fibroin solution and a cellulose solution are obtained; s2, transferring the fibroin solution and the cellulose solution into a reaction kettle, adding a modifier, vacuumizing to remove oxygen, heating to 50-85 DEG C, and stirring to react to obtain a composite spinning solution; the modifier is a small molecular compound containing an epoxy group or an oxygen-containing heterocyclic ring; s3, the composite spinning solution is extruded through a spinneret plate, fiber forming is conducted through a coagulating bath, drafting and winding are conducted, and the blending modified antifibrillated lyocell fiber is prepared. According to the invention, through in-situ modification of the lyocell fiber spinning solution, the prepared lyocell fiber has the intrinsic antifibrillation capability, the addition of an after-finishing process for treatment is not needed, meanwhile, the mechanical property of the fiber is improved, and the fiber is endowed with better skin-friendly property and wearing comfort.

The invention relates to the technical field of yarn detection, and particularly discloses a yarn detection device for chemical fiber spinning. According to the yarn detection device for chemical fiber spinning, the purpose of uninterrupted detection is achieved, an operator sleeves a to-be-detected yarn on the yarn feeding assembly, the yarn is manually pulled to penetrate through the detection device for tension and surface detection, and a device corresponding to the winding device drives the yarn to penetrate through the detection device for detection; the device corresponding to the winding device can properly heat the yarn, the tensile strength of the yarn can be lost after the tension test, the original strength of the yarn can be recovered after the yarn is properly heated, and the detection device can continuously provide tension as an adjustable tension providing device, so that the continuous offline test is realized, and the detection efficiency is improved. Compared with a traditional sampling type testing device, all raw materials can be tested, the tensile strength is recovered in a proper temperature rising mode, and the situation that the product performance is affected due to the fact that the strength of yarn is reduced after testing is completed is prevented.

The invention provides a multifunctional polyester yarn production system and an intelligent regulation and control method thereof, and relates to the field of chemical fiber spinning engineering. Comprising a multi-source sensing module, the multi-source sensing module carries out real-time acquisition processing on a multi-physics coupling process state set to form process state basic data, and the acquisition processing adopts a multi-type sensing device. And the depth inference processing module is used for carrying out space-time coupling inference processing on the process state basic data to form a process state recognition result. According to the multifunctional polyester yarn production system, through real-time acquisition and depth inference processing of multi-physical field data by the multi-source sensing module, accurate identification and prediction of a process state in a production process are realized. According to the multifunctional polyester yarn production system and the intelligent regulation and control method thereof, a space-time joint prediction model is used, the space-time joint prediction model comprises a graph convolutional network and a long-short-term memory network, space and time characteristics in data are fully mined, and the accuracy of process state recognition is improved.

To provide a synthetic resin canvas (and a method for producing the same) having cotton canvas appearance, stable in balance of warp and weft dimensions, and hardly causing dimensional change.SOLUTION: A synthetic-resin canvas having a mass of 360 to 800g / m2, the synthetic-resin canvas being obtained by providing a soft vinyl chloride-resin-impregnated coating layer on an entire surface of a fabric, wherein the fabric is a plain weave fabric, a twill weave fabric, or a satin weave fabric, and a 10% tensile stress in a widthwise direction of the synthetic-resin canvas is 90 to 110% of a 10% tensile stress in a processing direction. Especially, the fabric is composed of a short fiber spun yarn, a combination of a short fiber spun yarn and a long fiber multifilament bulky yarn, or a long fiber multifilament bulky yarn, and the difference between the total fineness per inch (dtex / inch) of the weft yarn group and the total fineness per inch (dtex / inch) of the warp yarn group is within ± 10%.SELECTED DRAWING: None

The invention relates to a method for industrially preparing a lyocell fiber spinning solution. The method comprises the following steps: step 1, preparing a first suspension with the cellulose concentration of less than or equal to 6wt%; step 2, increasing the concentration of cellulose in the first suspension to 10-12wt% in a manner of separating part of the solvent under pressure to obtain a second suspension; step 3, crushing and grinding the second suspension to obtain a third suspension; 4, inputting the third suspension into a film evaporator, controlling the temperature in the film evaporator, and dissolving the third suspension under a vacuum condition to obtain a spinning solution with the cellulose concentration of 11-13wt%; the method is a brand new thought for industrially preparing the lyocell fiber spinning solution, the hidden danger that dust is generated in the pulverization process of pulp can be eliminated, more sufficient and uniform swelling and more uniform dissolution can be synchronously achieved, the better dissolution effect is achieved, and the high-quality fiber spinning solution is obtained.

Recycling wind turbine blades includes shredding, crushing, and milling the wind turbine blades to yield a multiplicity of particles including glass fiber and sieving the particles to yield a multiplicity of pellets including glass fibers. Manufacturing a composite coaxial fiber includes providing a first, second, and third polymer composition to yield a composite coaxial fiber precursor, processing the composite coaxial fiber precursor to yield a coagulated composite coaxial fiber precursor, drawing the coagulated composite coaxial fiber precursor, and heating the drawn coagulated composite coaxial fiber precursor to yield the composite coaxial fiber. The second polymer composition can include the recycled glass fibers. The resulting composite coaxial fiber includes an inner and outer layer including polyacrylonitrile and a middle layer between the inner layer and the outer layer. The middle layer includes polyacrylonitrile and a multiplicity of the recycled glass fibers.

The invention provides a preparation method of coaxial aerogel fiber and temperature self-adaptive protective aerogel fabric, which comprises the following steps: weighing nano-crystalline cellulose powder and dispersing in deionized water to obtain nano-crystalline cellulose dispersion suspension, weighing phase change microcapsules and dispersing in the nano-crystalline cellulose dispersion suspension to obtain phase change microcapsules; a core layer spinning mixed solution is obtained; carrying out wet spinning on the nano aramid fiber spinning stock solution and the core layer spinning mixed solution through a coaxial spinning needle, and fully solidifying in a coagulating bath to obtain coaxial gel fibers; the coaxial gel fibers are subjected to multiple times of solvent replacement treatment, then washed to be neutral and finally subjected to freeze drying treatment, and the coaxial aerogel fibers are obtained. According to the fabric, the phase change microcapsules are perfectly wrapped in the aerogel fibers, and the fabric has good heat insulation performance, good mechanical performance, excellent low-temperature and high-temperature responsiveness and a good protection effect in an extreme environment.

The invention discloses a yarn-reinforced nano aramid fiber composite aerogel fiber and a preparation method and application thereof, the method relates to the steps of spinning solution preparation, coagulating bath preparation, spinning, solvent exchange and freeze drying, and a nano aramid fiber spinning solution and yarn are used as an outer layer and an inner layer respectively; and entering a coagulating bath through a coaxial needle head for wet spinning, and carrying out solvent exchange and freeze drying to obtain the yarn-reinforced nano aramid composite aerogel fiber. The composite aerogel fiber provided by the invention has abundant micro-nano hole structures, stores a large amount of still air, and has excellent heat insulation and warm keeping properties. Meanwhile, the yarn on the inner layer serves as a framework of the aerogel fiber, excellent mechanical support is provided, and a reliable guarantee is provided for follow-up spinning and weaving processing. The strength of the composite aerogel fiber prepared by the method can be regulated and controlled by the inner-layer yarn, the method is simple and easy to operate, and the aerogel can be endowed with potential of different special functions by the yarns with different properties.

The invention relates to a high-wear-resistance nano-particle composite polyester fiber spinning oil agent and a preparation method thereof. The oil agent contains 3-7wt% of an anti-wear agent composed of modified nano-hydroxyl magnesium silicate, polyoxypropylene stearate and polymethyl methacrylate; and 45-55 wt% of a smoothing agent composed of pentaerythritol oleate and trimethylolpropane fatty acid ester. The preparation method of the oiling agent comprises the following steps: firstly, weighing the components according to the weight; sequentially adding a smoothing agent, an emulsifying agent, a penetrating agent, a bundling agent, an antistatic agent, an anti-wear agent and an anti-coking agent; and finally, reacting for 1.5-3 hours at the temperature of 40-50 DEG C and at the stirring speed of 500-900 r / min to obtain the high-wear-resistance nano-particle composite polyester fiber spinning oil. The oiling agent has excellent wear resistance and smoothness, the manufacturing process is simple, and the oiling agent can well meet the spinning process of nano-particle composite polyester fibers.

The invention relates to a carbon fiber spinning solution and a preparation method thereof, belongs to the field of fiber materials, and solves at least one of the problems in the prior art that the molecular weight is difficult to increase, the molecular weight distribution is relatively wide, the viscosity and molecular weight of different batches are unstable and the like. The preparation method of the carbon fiber spinning solution comprises the following steps: adding a material containing acrylonitrile, a comonomer and a solvent into a polymerization device; carrying out demonomerization treatment on the acrylonitrile-based polymer liquid meeting the target molecular weight; and carrying out ammoniation treatment on the acrylonitrile-based polymer liquid subjected to demonomerization treatment. The viscosity and molecular weight stability of different batches of polymerization liquids are improved, a high-molecular-weight polymerization stock solution can be obtained, and the molecular weight distribution width is reduced.

The invention provides production equipment and a production process for polyester fibers special for sportswear, and relates to the technical field of fiber spinning. The special polyester fiber production equipment for the sportswear comprises a feeding device, a spinning box body, a spinneret plate, a water cooling device, a circular blowing cooling device, an oiling device and a winding device. According to the invention, a spiral groove fiber structure is formed through rotary spinning, the moisture conduction efficiency is enhanced by utilizing the capillary effect of the spiral groove, and a traditional after-treatment moisture absorption and sweat releasing auxiliary agent is replaced, so that the problem of function attenuation caused by washing is fundamentally solved, and the problem of poor moisture absorption and heat conduction efficiency of a straight groove is solved; a heat insulation shell and water cooling structure collaborative design is adopted, a heat insulation rotating roller blocks spinning high-temperature conduction, a heat exchange coil pipe directly cools the operation environment of a servo motor, the stability of a driving system under the high-temperature working condition is guaranteed through double protection, and therefore it is guaranteed that a rotating pipe accurately controls the fiber groove forming quality.

The utility model discloses a carbon fiber spinning assembly, which relates to the technical field of carbon fiber spinning and comprises a liquid supply module, a spinning module is mounted at the bottom of the liquid supply module, and a first fixing plate, a second fixing plate and a heating tank are sequentially mounted on the outer side of the liquid supply module from top to bottom. The multiple heating grooves are distributed in the area, located between the first fixing plate and the second fixing plate, of the outer side of the liquid supply module at equal intervals. And the heating assembly is internally provided with a plurality of heating units, the heating assembly is arranged on the outer side of the liquid supply module in a sleeving mode when used, and the heating units are embedded into the heating grooves correspondingly. The protection assembly is arranged between the liquid supply module and the coagulating bath tank, the protection assembly is formed by connecting the shielding section and the phase change section, the rotating plate in the phase change section is connected with the base plate through the universal pipes, and after the base plate is connected with the coagulating bath tank, by changing the shapes of the universal pipes, the liquid supply module is connected with the coagulating bath tank through the universal pipes. And the two ends of the first assembling plate can be kept in a parallel state.

To provide a canvas for industrial materials, which has excellent balance of tear strength in the warp and weft directions, excellent bending durability (flutter resistance), especially excellent bending durability below freezing point and durability of joints under the blazing sun, and has a good appearance, and a manufacturing method thereof. [Solution] A canvas having a soft polyvinyl chloride resin-impregnated coating layer provided on the entire surface of the fabric, the fabric being woven from a group of warp threads and a group of weft threads, with multifilament yarns and staple spun yarns regularly alternately arranged in both the warp and weft thread groups, the alternating arrangement having 2 to 6 repeat units, and either one of a combination of multifilament yarns (1 to 3 threads) and staple spun yarns (1 to 3 threads), and the soft polyvinyl chloride resin-impregnated coating layer containing a cured liquid rubber.

The invention discloses a polyester staple fiber spinning on-line detection system and method based on machine vision. The system comprises a pneumatic optical constraint assembly, an imaging assembly and a processing unit. The pneumatic optical constraint assembly is integrated with a Venturi flow channel and a back plate with an inclined stripe background; the imaging assembly obtains image data of the tows constrained by the venturi flow channel. The processing unit calculates a vertical gradient component and a gradient direction, and generates a first feature map marking a defect area by calculating a difference value between the gradient direction and a stripe background extension direction; and weighting the vertical gradient component by using the first feature map, executing projection integral operation in a direction vertical to the motion direction of the tow to offset the gradient component of the stripe background, and calculating and outputting tow width data according to a projection curve generated by integral. According to the method, transparent defect detection and tow width measurement are simultaneously realized in a single-frame image through cooperation of fluid dynamic constraint and an integral cancellation algorithm.

Provided is a liquid crystalline polyester fiber capable of achieving improved weatherability without kneading a UV absorber into the fiber or attaching a weatherable UV absorber after fiber spinning. The liquid crystalline polyester is a fiber that consists essentially only of a liquid crystalline polyester, in which the amount of UV absorber used is 5 mass % or less, and the strength retention in the weather fastness test with xenon arc lamp light in accordance with JIS L 0891 is 60% or more.

The invention provides microfiber spinning oil and a preparation method thereof, and belongs to the technical field of textiles. The microfiber spinning oil comprises the following components in parts by mass: 12-17 parts of castor oil, 3-8 parts of white oil, 25-30 parts of polyurethane resin, 1-3 parts of modified filler, 2-5 parts of an antistatic agent, 6-10 parts of a wetting agent, 4-8 parts of an emulsifier, 1-3 parts of a defoaming agent, 1-3 parts of a flatting agent, 2-5 parts of a dispersing agent and 30-36 parts of deionized water. The prepared microfiber spinning oil has good stability, layering and precipitation phenomena cannot occur after the microfiber spinning oil is placed for a long time, superfine fibers treated by the prepared microfiber spinning oil have excellent weather resistance and mechanical properties, and the microfiber spinning oil has wide application prospects.

The invention relates to the technical field of functional fiber preparation, in particular to a polyurethane / carbon black / Cu composite conductive fiber and a preparation method and application thereof. The preparation method of the polyurethane / carbon black / Cu composite conductive fiber comprises the following steps: mixing flaky copper powder with a conductive fiber spinning solution of polyurethane and carbon black to obtain a polyurethane / carbon black / Cu composite conductive fiber spinning solution; wherein the flaky copper powder accounts for 2.5%-20% of the mass of the polyurethane / carbon black / Cu composite conductive fiber spinning solution; and carrying out wet spinning on the polyurethane / carbon black / Cu composite conductive fiber spinning solution to obtain the polyurethane / carbon black / Cu composite conductive fiber. According to the preparation method, the viscosity of the TPU / CB / Cu composite conductive fiber spinning solution is successfully reduced, the problems that a spinning needle head is blocked and spinning operation is complex are solved, and the conductivity of the TPU / CB / Cu composite conductive fiber is remarkably improved.

The invention belongs to the technical field of cleaning cloth, and particularly relates to cleaning towel cloth made of a degradable material and a preparation method of the cleaning towel cloth. Uniformly mixing cellulose pulp, an N-methylmorpholine-N-oxide aqueous solution, the modification liquid and a fixing agent to obtain a fiber spinning solution, and preparing modified lyocell fibers by utilizing the fiber spinning solution; the modified lyocell fibers and cotton fibers are spun through compact spinning to obtain blended yarns, and then the blended yarns are used for weaving to obtain the cleaning towel cloth made of the degradable material. The modified liquid is prepared from the following raw materials: quaternized carboxymethyl chitosan, modified nano silicon dioxide, polyvinyl alcohol and deionized water; the cleaning towel cloth provided by the invention not only has relatively good water absorption performance, but also has excellent wear resistance, breaking strength and antibacterial performance, and also keeps good biodegradability at the same time.

The invention discloses automatic spinning cooling equipment, relates to the technical field of textile processing, and aims to solve the technical problems that existing spinning cooling equipment depends on manual carrying of a cooling device, the temperature control precision is poor, the cooling effect is unstable, and the operation efficiency is low. Automatic movement of the cooling device is achieved through lead screw transmission, manual carrying is replaced, the labor cost is reduced, and the operation efficiency is improved; precise temperature control is achieved by means of a temperature sensor and a cooling mechanism, and the multi-process requirements of melt spinning, solution spinning and the like are met; the spinning cooling uniformity is guaranteed through the design of the double flow guide pipes and the opposite side air blowing mechanism; the arc-shaped bent pipe solves the problem of spinning transition deformation, multi-device collaboration is improved, finally, the quality of spinning products is effectively improved, and the device is suitable for the chemical fiber spinning cooling process.

The invention provides a polylactic acid fiber with a round wave surface special-shaped section and a spinneret plate thereof, and relates to the technical field of polylactic acid fiber spinning. The polylactic acid fiber with the round wave surface special-shaped section comprises a fiber body, and the spinneret plate of the polylactic acid fiber with the round wave surface special-shaped section comprises a first cooling air supply device, a second cooling air supply device, a first plate body, a second plate body, a third plate body, a fourth plate body and a fifth plate body. According to the invention, the softness, bulkiness and wet permeability of the fiber are improved through the multiple groups of round wave bodies, and the ratio of the radius of the round wave bodies to the radius of the central body is restrained, so that the overall shape change of the cross section is not large during the production of drawn yarns, and the central body can still keep higher strength after being drawn; and wrapping type air blowing cooling is performed on the spun filaments, so that the cooling strength uniformity of the filament bundles is effectively improved.

An embodiment method for manufacturing a high-tensile continuous fiber spun yarn using a recycled carbon fiber (rCF) includes recovering a rCF raw material from a waste composite material product, the waste composite material product including carbon fiber reinforced plastic (CFRP), fabricating a rCF nonwoven fabric using the recovered rCF raw material, producing slitter yarns cut into a long length and a predetermined narrow width by placing the rCF nonwoven fabric into slitter equipment in a slitting process, fabricating the high-tensile continuous fiber spun yarn with a predetermined thickness by twisting at least one of the slitter yarns through twisting equipment in a twisting process, and producing a spun yarn product by winding the high-tensile continuous fiber spun yarn on a bobbin using a spinning machine.

The utility model belongs to the technical field of fiber production, and particularly relates to a fiber spinning device which comprises a spinning box, a static mixer is fixedly arranged at the top of the spinning box, a booster pump is fixedly arranged at the top of the static mixer, a material guide pipe is arranged at the top of the booster pump, and a spinning assembly is arranged in the spinning box. The temperature detector, the central controller, the alarm, the guide plate, the conductive block, the transverse plate and the push rod motor are arranged, the temperature detector monitors the temperature in the spinning box in real time and transmits the temperature data to the central controller, and when the temperature in the spinning box is lower than or higher than the preset temperature, the central controller starts the push rod motor, so that the temperature in the spinning box is monitored. The push rod motor pushes the guide plate, when the conductive block at the top of the guide plate is attached to the positive pole, the alarm is powered on to give an alarm, and related personnel can know that the temperature in the equipment does not reach the standard in the first time, so that corresponding measures can be taken in time, the breakage rate of subsequent processing is reduced, and the production quality of fibers is ensured.

The invention relates to the technical field of raw material drying, in particular to a chemical fiber spinning raw material drying device capable of improving heating uniformity, which comprises a raw material drying box main body, a feeding hopper is arranged at the top of the raw material drying box main body, and a material distribution box is fixed at the bottom of the feeding hopper; chemical fiber spinning raw materials are quantitatively fed into the drying equipment in batches to be dried, and the chemical fiber spinning raw materials are fed into the equipment in a single-layer mode to be dried, so that it is guaranteed that each raw material particle can be fully exposed in hot air, and heat is evenly transmitted; the condition that inner particles are not heated enough or outer particles are overheated due to accumulation is avoided, and the drying consistency is improved; moreover, hot air can be in contact with the raw materials more efficiently through single-layer distribution, diffusion and evaporation of water are accelerated, and compared with the situation of multi-layer accumulation, the path of water diffusing to the surface from the interior of the raw materials and evaporating to the air from the surface is shortened through single-layer input, so that the drying speed is increased, and the drying time is shortened.

The invention discloses an extrusion device for a composite hollow three-dimensional fiber spinning machine, the extrusion device comprises a rack, the rack is provided with a feeding assembly, a transmission assembly, a filtering assembly, an extrusion assembly and a spinneret plate which are connected in sequence, the spinneret plate is densely provided with spinneret units, and each spinneret unit comprises a first through hole and a second through hole which are adjacent to each other. According to the extrusion device for the composite hollow three-dimensional fiber spinning machine, two different materials can be conveyed at the same time through the conveying assembly, and after impurities are filtered out through the filtering assembly, the two different materials are extruded out of the first through hole and the second through hole in the spinneret plate through the extrusion assembly; the two materials generate different shrinkage amounts under the air cooling effect at the same time, the bulkiness of finally formed fibers is improved, then the heat retention property is improved, and the device is compact in structure.