1103results about "Spinnerette packs" patented technology

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 discloses a polyester ITY yarn and a production method thereof. The method comprises the following steps: extruding a polyester melt from a spinning assembly under the control of two groups of metering pump frequency converters, cooling to obtain polyester monofilaments, oiling part of the polyester monofilaments through an oil nozzle, drawing and shaping through GR0 and a hot roller box to prepare FDY (Fully Drawn Yarn), and oiling the other part of the polyester monofilaments to prepare POY (Polyester Pre-Oriented Yarn); fDY (fully drawn yarn) is mixed with POY (pre-oriented yarn) in a pre-interlacing device through GR1 for pre-interlacing, then enters a main interlacing device through GR2 for main interlacing, and finally enters a winding machine through GR3 for winding to obtain ITY; before entering the pre-interlacing device, the tension of the FDY is 10-14 cN, the tension of the POY is 12-16 cN, the tension of the FDY is smaller than that of the POY, and the tension difference is 1-2 cN. According to the invention, conventional FDY production equipment is utilized, and a one-step method is adopted to prepare the super-imitation cotton ITY combined filament yarn with good moisture and air permeability.

The invention discloses a microstructure regulation and control system and method for a high-strength and high-modulus polyethylene fiber spinneret plate, and relates to the field of polyethylene fiber spinneret plates, and the system comprises a camera module which is used for collecting a morphological image of a fiber yarn sprayed by the spinneret plate in a running state and storing the morphological image of the fiber yarn; the detection module is used for acquiring the form images of the fibers in the camera module, analyzing the similarity and symmetry of the form images of the fibers, and comprehensively estimating the accuracy of the fibers sprayed by the spinneret plate based on the analysis results of the similarity and symmetry; according to the invention, the plurality of high-definition cameras collect fiber form images around the spinning direction, and the collection frequency is dynamically adjusted in combination with the change of the environmental audio frequency spectrum, so that fine features of abnormal spinning can be accurately captured; on the basis of similarity and symmetry analysis of the fiber outline image, the weight is intelligently configured according to the number of the spinneret orifices, so that the calculation accuracy is improved, and the precise evaluation of the spinneret state is realized.

The invention discloses a processing method of a spinneret plate, which comprises the following steps: acquiring a plate material, and pretreating the plate material to obtain a blank of the spinneret plate; the blank is installed on an automatic punching machine tool, punching is conducted on the same position of the blank for at least three times, modification treatment is conducted after punching of the blank is completed every time, and the spinneret plate is obtained. The invention further discloses the lyocell spinneret plate. According to the spinneret plate, the same position in the spinneret plate blank is subjected to multiple times of punching and other operations, spinneret orifices formed through multiple times of punching are low in roughness and higher in size precision, meanwhile, the strength of materials in the orifices is enhanced, and the problems that in spinning production, yarn breaking and doubling are likely to happen, adhesion is likely to happen, and the plate replacement cleaning difficulty is large can be solved.

The invention discloses a pulse blowing and cleaning device for a spinneret plate. The blowing and cleaning device comprises a first bearing seat, an air supply assembly, a first blowing assembly, a second blowing assembly and an elastic part, wherein the first bearing seat can generate linear displacement; at least part of the air supply assembly is arranged on the first bearing seat; according to the device, through organic combination of all the components, pulse type blowing of the spinneret plate is achieved, the blowing angle of blowing airflow can be changed, and the blowing effect is improved; the operation is simple, the second bearing seat and the third bearing seat are in butt joint and fit through external force, then the air source is started to realize automatic purging and cleaning, the purging efficiency is high, the purging effect is good, the blown impurities cannot be dissipated everywhere, the utilization rate of the air source is high, the purging height can be adjusted, and the practicability is high. The device is suitable for blowing and cleaning spinneret plates of different specifications.

An electrospinning device comprising a spinning mechanism (1) and a casing (2) attached to the outside of the spinning mechanism (1), characterized in that a heating mechanism is arranged outside the casing (2), the heating mechanism comprises a connecting block (3), the body of the connecting block (3) is provided with a continuous main channel (4), the outer surface of the connecting block (3) is provided with an auxiliary channel (5), the interior of the auxiliary channel (5) is connected to the interior of the main channel (4), the interior of the main channel (4) is connected to a heat pipe (6), the outer surface of the heat pipe (6) penetrates the body of the casing (2) and is firmly connected to it, a reversing component (7) is arranged inside the auxiliary channel (5), an air intake pipe (8) is arranged outside the connecting block (3), and an automatic control component (9) is arranged outside the air intake pipe (8).one end of the air intake pipe (8) is connected to a heat protection hose (10), the inside of the heat protection hose (10) is connected to the inside of the auxiliary duct (5), and the inside of the heat pipe (6) is firmly connected to a fan heater (11); when air flows in the main duct (4), the sealing plates (72) in the reversing component (7) are stacked on top of each other to seal the auxiliary duct (5), and at the same time the stop plate (710) shields the main duct by vacuum extraction, and during the movement of the stop plate (710) the sealing plates (72) are rotated and not stacked on top of each other; The heat sensor plate (94) in the automatic control component (9) detects the temperature at the nozzle position, thereby controlling the fan power to control the wind speed, and simultaneously controls the expansion and contraction of the gas bag (910) to control the distance between one end of the air intake pipe and the nozzle position.which ensures the quality of the spin forming process.

The utility model discloses an anti-blocking chemical fiber spinneret plate which comprises an installation sleeve, a spinneret plate body is installed in the installation sleeve, a protective cover is further installed at the upper end of the installation sleeve, a feeding pipe is installed on the right side of the installation sleeve, an air blowing opening is formed in the left side of the installation sleeve, and a baffle is rotatably installed at the position of the air blowing opening through a rotating shaft. A hot air pipe is mounted on the left side of the mounting sleeve corresponding to the air blowing port; the mashing mechanism is mounted on the protective cover and used for mashing spinneret orifices in the spinneret plate; the scraping mechanism is installed in the installation sleeve and used for scraping raw materials at the lower end of the spinneret plate, the structure is reasonable, the residual raw materials in the spinneret plate can be better cleaned, the blocking phenomenon can be effectively prevented in the follow-up use process, and therefore the use requirement is better met.

The invention relates to a spinneret plate (50) of a melt spinning device (1) for producing synthetic filaments (F) from a plastic melt, wherein the spinneret plate (50) has a plurality of spinnerets (51) for extruding filaments (F) from the plastic melt, wherein the plurality of spinnerets (51) are grouped into a predetermined number of spinneret groups (53) with a predetermined number of spinnerets (51), wherein the number of spinnerets of the associated spinneret group defines a spinneret circle (SK) with a spinneret circle radius (rSK), and the mutually adjacent spinneret groups define a group circle (GK) with a group circle radius (rGK), wherein the spinneret circle radius (rSK) is less than and / or equal to the group circle radius (rGK).

The utility model discloses a TEG automatic cleaning furnace for cleaning a spinneret plate. The TEG automatic cleaning furnace comprises a control cabinet, a transfer device, a TEG cleaning device and a bearing support mechanism. The transfer device comprises a lifting driving mechanism, a swing driving mechanism and a support locking mechanism. According to the TEG automatic cleaning furnace for cleaning the spinneret plate, by means of cooperation of the lifting driving mechanism, the swing driving mechanism and the support locking mechanism, locking and hoisting of the bearing support mechanism can be achieved, and therefore the spinneret plate borne on the bearing support mechanism is automatically fed into the TEG cleaning device to be subjected to triethylene glycol cleaning treatment; and after treatment is completed, the bearing support mechanism and all the spinneret plates are lifted and taken out together, manual participation is greatly reduced, and the batch cleaning efficiency of the spinneret plates is effectively improved.

The utility model discloses an ultrasonic cleaning machine which comprises an ultrasonic cleaning tank, a filtering water tank, a circulating pump, two height adjusting supports, two ultrasonic transducers, a bearing support mechanism and a suspended supporting unit. According to the ultrasonic cleaning machine, batch lifting of the spinneret plates can be achieved through the bearing support mechanism, and therefore the feeding and discharging efficiency of the spinneret plates is effectively improved; the two ultrasonic transducers and the two arc-shaped diffusion plates are oppositely arranged, wrapping type ultrasonic cleaning from the two sides can be conducted on the spinneret plates located in the middle, and the ultrasonic cleaning effect is effectively enhanced; the insertion depth of the ultrasonic transducer can be adjusted through the height adjusting support, and therefore the requirement for concentrated cleaning of spinneret plates with different placement heights is met.

The invention relates to the technical field of fiber production equipment, in particular to production equipment and a preparation method of high-density polyester pongee polyester fibers, the production equipment comprises a spinning box body, a spinning assembly and a circular blowing cooling device, spinneret orifices in a spinneret plate in the spinning assembly are distributed in n circles according to the concentric circle layout, 1 lt; nlt; 31, the total hole depths of all the spinneret holes are the same, the shapes and the hole diameters of the micropores in all the spinneret holes are the same, and the hole depths of the micropores in the spinneret holes in the same circle are the same; the n circles are numbered from 1 from outside to inside, and the ratio of the hole depth of a micropore in the spinneret orifices in the ith circle to the hole diameter of the micropore is 4.5-(i-1) / 18; i = 1, 2,..., n; according to the preparation method, the production equipment is used for producing the high-density polyester pongee fibers. According to the production equipment, the micropores of the spinneret plate are distributed in a stepped manner, and the principle that cooling air decreases layer by layer is combined, so that polyester fibers are cooled more sufficiently and uniformly, and polyester pongee fibers with excellent quality are obtained.

The invention discloses a synthetic leather nascent fiber melt extrusion device and a use method, and belongs to the technical field of spinning machines.The synthetic leather nascent fiber melt extrusion device comprises a shell, an injection pipe is installed at the position, close to the upper end, of the left side of the shell, a conveying pipeline is installed at the position, close to the lower end, of the right side of the shell, and a spinneret plate is installed at the right end of the conveying pipeline; and a filter cartridge is mounted in the shell. The motor can drive the filter cartridge to rotate and dynamically change the filtering area, so that the possibility of blockage of the filtering holes is effectively reduced, the uniformity of the filtering process is ensured, excessive blockage of the local filtering area is avoided, and when the filter cartridge rotates, the touch block is utilized to touch the touch switch, so that the filtering efficiency is improved. The electromagnet is instantly controlled to drive the cleaning needle to automatically clean impurities and small bubbles in the filter holes, then the small bubbles are discharged in time by using vibration force during cleaning, and the problem that the bubbles penetrate through the filter holes due to pressure deformation, and spinning is interrupted is solved.

The utility model relates to the technical field of cleaning structures, in particular to a clean and efficient cleaning structure for spandex production, which comprises a cleaning tank, a material injection pipe communicated with the cleaning tank and capable of injecting DMAc solvent is arranged in the cleaning tank, a V1-2 control valve is arranged in the material injection pipe, a DW communicated with the cleaning tank is arranged outside the cleaning tank, and a V1-2 control valve is arranged in the DW. The cleaning structure comprises a cleaning tank and a DW communicated with the cleaning tank, a V1-1 control valve is arranged between the DW and the cleaning tank, an S3 communicated with the cleaning tank is arranged outside the cleaning tank, and a V1-3 control valve is arranged between the S3 and the cleaning tank. Environmental pollution caused by volatilization of a large amount of DMAc generated when the workpiece is lifted out after being cleaned in the assembly cleaning process can be eliminated, and the follow-up collection and disposal cost caused by air pollution is reduced.

The utility model discloses an automatic cleaning device for a viscose filament horizontal spinning tube, comprising a stainless steel conveyor belt, a clamping device and a telescopic nozzle assembly. The stainless steel conveyor belt is provided with a feeding area, an alkali passing area, an alkali blowing area, a cleaning area, a water blowing and air drying area and a manual inspection area from right to left, and each area is linked in series by the stainless steel conveyor belt. The main frame of the cleaning device is made by welding 304 stainless steel profiles. The stainless steel conveyor belt is provided with feet for supporting the spinning tube, and the feet are arranged at equal intervals. The alkali passing area, the alkali blowing area, the cleaning area and the water blowing and air drying area are respectively provided with clamping devices, and the clamping devices comprise positive and negative lead screws, a lower clamping plate and an upper clamping plate, and the lower clamping plate and the upper clamping plate are respectively fixedly connected with nuts on the positive and negative lead screws. The equipment can meet the cleaning requirements of the spinning tube, and ensure that the spinning tube automatically moves and works continuously on the cleaning line body, and the spinning tube that is finally unloaded and packed meets the cleaning requirements of the spinning tube.

The present invention discloses a method for processing a spinneret, comprising: obtaining a sheet material, pre-treating the sheet material to obtain a blank of the spinneret; installing the blank on an automatic punching machine, punching the same position of the blank at least three times, performing a modification process after punching the blank each time, and obtaining the spinneret. The present invention also discloses a lyocell spinneret. The present invention performs multiple punching operations on the same position in the spinneret blank, so that the spinneret holes formed by the multiple punching have low roughness and higher dimensional accuracy, and the material strength in the hole is enhanced, which can solve the problems of easy wire breakage, wire doubling, easy adhesion, and difficulty in cleaning when changing the plate in spinning production.

The utility model discloses a spinning manifold capillary channel cleaning device which comprises a portable pistol drill, a metal soft steel wire with one end installed on the portable pistol drill and a metal fixing pipe arranged outside the metal soft steel wire in a sleeved mode. The metal soft steel wire extending out of one end of the metal fixing pipe is driven by the portable pistol drill to rotate, and then the interior of the capillary channel is polished and cleaned. The cleaning device for the spinning manifold is simple in structure, convenient to use, capable of effectively cleaning carbonized substances in the spinning manifold without shutdown, capable of greatly saving production cost and guaranteeing normal production and quality, easy to operate, high in practicability, good in cleaning effect and low in cost.

A spinneret plate cleaning method, system and device based on visual localization are characterized in that an industrial camera collects an image of a spinneret plate, the image is preprocessed to obtain the preprocessed image, the preprocessed image is subjected to fitting circle calculation to obtain the circle center and radius of a hole site candidate circle, the hole site candidate circle is a spinneret plate hole possibly existing in the spinneret plate, and the number of the hole site candidate circle is larger than that of the spinneret plate hole. And round contour screening is conducted on the hole position candidate circles, the circle with the small radius is selected as a target circle, the pixel coordinates of the target circle are obtained, interference caused by an error circle with the highest roundness score is prevented, the pixel coordinates of the target circle are converted into mechanical coordinates, then a cleaning path is planned, and a mechanical arm is driven to clean the spinneret plate holes. According to the design, when contour lines around the target are relatively complex, interference of abnormal values exists and an approximate arc contour exists, interference of an error circle with the highest roundness score can be prevented, the image can be preprocessed through global threshold processing, and the requirement for the imaging quality is effectively lowered.

The utility model provides a spinneret plate full-automatic integrated cleaning device which comprises a machine frame, the longitudinal section of the side of the machine frame is in an L shape, a station table is arranged on the front side of the machine frame, a machine cavity is arranged on the rear side of the machine frame, and the station table is sequentially provided with a feeding station, a cleaning station, a hot air water cutting station, a baking station and a discharging station from feeding to discharging. A transplanting mechanism is arranged on the position table on the front side face of the rack, an electric control cabinet is arranged on one side of the rack, a water supply tank, a water pump, a filter tank, an air blower, a vacuum pump and an infrared heater are sequentially arranged in the machine cavity from the feeding side to the discharging side, the water pump is communicated with the water supply tank through a water pipe, and the filter tank is communicated with the air blower through an air pipe. The feeding station, the cleaning station, the wind cutting station, the drying station, the discharging station and the like are arranged on the cleaning machine, the jig plate is moved through the transplanting mechanism, automation of material flowing among the stations on the whole equipment is achieved, and the automatic feeding and discharging process can be achieved through the arrangement of the skip car and the feeding and discharging mechanism.

The utility model discloses a spinning production device which comprises a machine frame, the machine frame comprises at least four supporting columns, a box body is arranged on the machine frame, a discharging port is formed in the bottom of the box body, and the discharging port is connected with a spinneret plate. A flow guide plate is arranged below the box body, and baffles extend upwards from the edges of the two opposite sides; the size of the flow guide plate is larger than that of the spinneret plate, the flow guide plate is obliquely arranged, and the upwards-inclined end of the flow guide plate is movably connected with the rack. The spinning box has the advantages that when varieties and raw materials of the spinning box are replaced, melting needs to be carried out, a solution pipeline is completely discharged, and a guide plate is arranged to prevent the solution from flowing into other production devices in the solution discharging process to cause pollution to the production environment; 2, through cooperation of the rotating shaft and the connecting rod, the flow guide plate is rotated out when flow guide is needed, and the inclination angle is changed by adjusting the connecting hole position of the connecting rod and the supporting rod; and 3, when the space is narrow and the flow guide plate cannot rotate, the flow guide plate is movably connected with the supporting column through the hook and is pulled out during use.

The invention provides a polyester mother yarn processing method, which solves the problems of poor silk fiber forming quality and the like, and comprises the following steps: melting and extruding PET (Polyethylene Terephthalate) particles to obtain a spinning solution, carrying out melt spinning on the spinning solution through a spinneret plate, cooling through a circular blowing cooling device, and carrying out drafting and heat setting to obtain the polyester mother yarn through a yarn forming assembly. The device has the advantages of high filamentation quality, stable operation and the like.

Disclosed herein are methods of producing a scaffold by producing a biopolymer scaffold composition by pneumatospinning a polymer solution comprising polymer fibers onto a collector; feeding the polymer fiber solution comprising the polymer fiber into an air brush; applying a gas pressure around the polymer fiber solution comprising the polymer fiber in the airbrush; ejecting the polymer fiber from the air brush onto the collector; crosslinking the polymer fibers; and seeding a plurality of cells to the polymer scaffold composition.

An enhanced flash evaporation / electrospinning composite spinning equipment includes a flash spinning equipment, an electrospinning equipment, and a grounded receiving conveyor belt; the flash spinning equipment includes a flash spinning spinneret unit, the flash spinning spinneret unit includes a first spinneret, and the first spinneret is grounded; the electrospinning equipment includes a high-voltage power supply and an electrospinning spinneret unit, the electrospinning spinneret unit includes a second spinneret, and the second spinneret is connected to the high-voltage power supply; the first spinneret and the second spinneret are both located above the receiving conveyor belt at opposite positions with a distance of D, and the value range of D is 15-40 cm. The enhanced flash evaporation / electrospinning composite spinning equipment has a simple structure, and can prepare products that are not easy to delaminate, and excellent in waterproof performance and air permeability.

The invention relates to a device for producing a plurality of filaments, the plurality of filaments forming a thread (17), and to a method for producing a plurality of filaments, having a spinning assembly (21) in a spinning manifold (2), the spinning assembly having a plurality of capillaries (22) for extruding a plurality of filaments (13) and a cooling well (1) for guiding the filaments therethrough, and having a volumetric flow suction device (20) which interacts with the cooling shaft such that a volumetric flow (30) can be provided at the spinning assembly (21) around a capillary envelope (24) of the plurality of capillaries (22), the volumetric flow suction device (20) being configured to provide the volumetric flow (30) at the capillary envelope (24) at a constant suction pressure (P3).

The utility model relates to the technical field of spinning machinery, in particular to a spinning device for a spinning machine, which can quickly and automatically clean a spinning nozzle in a spinning gap, maintain the surface clean, guarantee the spinning effect and improve the reliability. Comprising a spinning machine spinning mechanism and a spinning nozzle, the output end of the spinning machine spinning mechanism is communicated with the inner end of the spinning nozzle, and the spinning device further comprises an inner ring, balls, an outer ring, an annular brush, a speed reducer connecting frame, a speed reducer, a motor, a driving bevel gear and a bevel gear ring. The front end of the inner ring is connected with the rear end of the bevel gear ring; the middle part of the top end of the outer ring is connected with the rear side of the speed reducer through the speed reducer connecting frame; the input end of the speed reducer is connected with the output end of the motor; the output end of the speed reducer is connected with the middle part of the top end of the driving bevel gear; and the driving bevel gear is movably meshed with the bevel gear ring.

The utility model relates to the technical field of textile equipment, in particular to a spinneret plate for fibers, which comprises a spinneret plate body and spinneret orifice groups on the spinneret plate body, a guide plate matched with the spinneret plate is arranged on the spinneret plate, and a plurality of guide orifice groups consisting of guide orifices in one-to-one correspondence with the spinneret orifices on the spinneret plate are arranged on the guide plate. The diversion hole is a cylindrical hole with a through upper part and a closed bottom part, and a diversion hole is formed in the side wall of the bottom of the diversion hole; the lower end of each flow guide hole in the flow guide plate is provided with a first confluence groove, and the upper end of each spinneret hole in the spinneret plate is provided with a second confluence groove. Spinning melt flowing in the flow guide holes is shunted through the shunting holes, so that the flowing spinning melt forms multiple strands of primary fiber materials with the same cross section shape at the shunting holes, the multiple strands of primary fiber materials are converged into the spinneret orifices, and finally fiber materials with a multi-dimensional internal structure are formed at the spinneret orifices. The toughness and bendability of the fiber material are improved.

The invention discloses a method for preparing polyester industrial filaments by recycling polyester chips from waste spinning products and the polyester industrial filaments, and belongs to the technical field of chemical fibers. The method comprises the following steps: by taking waste spinning product recycled materials as raw materials, carrying out solid-phase tackifying on the polyester chips recycled by a DMT method to obtain high-viscosity chips; extruding and melting the high-viscosity slices to obtain a spinning melt; extruding the spinning melt to obtain a melt trickle; carrying out slow cooling treatment on the melt trickles, and cooling through circular blowing or lateral blowing to obtain a strand body; the filament body is stretched and shaped, then low polymer blowing and winding are carried out, and the industrial polyester filament is obtained. According to the method, the waste spinning products are used for recycling raw materials, the production process is optimized, resources are saved, incineration is reduced, carbon emission is avoided, landfill is reduced, environmental protection is facilitated, land occupation is reduced, and human health is protected; and good performance and qualified rate of the product are ensured, so that the physical performance, broken filament performance and spinnability of the final product can meet the requirements.

The utility model relates to a spinning box cleaning device which comprises a cleaning device body and a recovery device, one end of the cleaning device body is communicated with an assembly chamber connector at the lower end of a spinning box, and the other end of the cleaning device body is communicated with a cleaning liquid supply device. The cleaning device body is used for leading cleaning liquid in the cleaning liquid supply device into a spinning branch pipe in a spinning box through an assembly chamber connector, one end of the recycling device is connected with a metering pump base at the upper end of the spinning box, and the other end of the recycling device is communicated with a cleaning liquid recycling box. The metering pump base is communicated with the assembly chamber connector through a spinning branch pipe, and the recycling device is used for recycling cleaning liquid in the spinning box into the cleaning liquid recycling box. Glued spinning raw materials in the pipeline are dissolved through the cleaning liquid and then cleaned, and compared with the mode that the pipeline is cleaned through open fire calcination in the prior art, the pipeline cleaning device is safer, more efficient, more convenient to operate and lower in cost, and the service life of equipment is longer.

A stretch yarn includes a multifilament including fibers having a coiled crimping form in a fiber axial direction, wherein a coil diameter distribution of crimping in the fiber has two or more groups, a ratio of a maximum group average value to a minimum group average value of the coil diameter (a maximum group average value / a minimum group average value) is less than 3.00, and a cross section of the fibers constituting the multifilament is an eccentric core-sheath cross section.

The invention relates to the technical field of micro-nano fiber preparation, and discloses an air jet spinning device and process for large-scale micro-nano fiber preparation, the device comprises a shell, a multi-row hole coaxial spinneret plate, a feeding mechanism, an air exhaust pipeline and a control panel; a moving platform and a rotating shaft receiving mechanism are mounted in the shell, and a driving part is mounted on the moving platform; the multi-row hole coaxial spinneret plate is mounted at the moving end of the moving platform; the feeding mechanism comprises a quantitative liquid supply assembly and a high-pressure air supply assembly, the quantitative liquid supply assembly and the high-pressure air supply assembly are both communicated with the multi-row hole coaxial spinneret plate, and a heating element is installed on the high-pressure air supply assembly; one end of the exhaust pipeline is fixedly connected and communicated with the shell, and the other end is provided with an air pump; and pipeline heating equipment, a first electromagnetic valve, a solvent cooling and recycling assembly and a second electromagnetic valve are mounted on the air exhaust pipeline. According to the invention, large-scale continuous and uniform spinning of micro-nano fibers can be realized, efficient recovery of the solvent is realized, and the spinning scale and efficiency are effectively improved.

To provide a fiber filler that can maintain repulsion and aging resistance of the filler for a long time and extend its service life.SOLUTION: A fiber filler includes at least two filler zones, each of which is formed by winding and stacking fibers. The hardness of each filler zone varies. The filler zones can be set in layers, in the same layer in different regions, or a combination of both. By utilizing multiple independent filler zones made up of layered fiber base layers, and subsequently assembling these zones with different hardnesses into a single unit, the present invention allows flexible control of the hardness characteristics of different areas of the fiber filler. This maintains different hardness characteristics from the inside out, improving the deformation smoothness of cushions for household decoration, and meeting the needs of various users.SELECTED DRAWING: Figure 1