Dual purpose coagulation spinning system

Abstract

The present application relates to a kind of dual-purpose solidification spinning system, belong to spinning technical field, for solving need to set up special upper and lower double-layer corrosion-resistant stainless steel platform or construct special building structure, two kinds of spinning technology are long-term independent in fiber preparation route, the angle difference of spinning unit of dual-purpose spinning method, the angle of wet spinning cannot be adjusted, the mechanical properties and orientation of just sprayed fiber bundle are poor, one of the problems of the bubble and impurity contained in coagulation liquid.The present application includes first spinning mechanism, second spinning mechanism and a washing machine, first spinning mechanism and second spinning mechanism are arranged side by side on ground.The spinning section of the spinning system of the present application does not need to be set up in upper and lower double layers, the operation difficulty is small, only one layer of operating personnel is configured, personnel quota is less;Double-layer special stainless steel platform or building does not need to be set up, reduces the construction cost and construction period of production line, the installation, maintenance and production line modification of equipment are simple.

Description

Technical Field

[0001] This invention relates to the field of spinning technology, and more particularly to a dual-purpose solidification spinning system. Background Technology

[0002] In the carbon fiber precursor coagulation and spinning section, maintaining a stable liquid level in the coagulation bath is crucial. To address the issue of filament spatial arrangement and facilitate personnel operation, each coagulation tank is equipped with 5-6 spinning positions. The coagulation baths are arranged in upper and lower layers. The filaments from each layer pass through multiple coagulation tanks and multi-roller machines, converging at the bottom of the production line and then horizontally arranged before entering the washing tank. This arrangement necessitates the use of a dedicated corrosion-resistant stainless steel platform or a specialized building structure for the spinning section, requiring at least two layers. Operation between the upper and lower coagulation baths is challenging, and additional personnel are needed on each layer, increasing staffing requirements. Furthermore, the need for at least two layers of dedicated stainless steel platforms or buildings increases the construction cost and time of the production line, making equipment installation, maintenance, and production line modifications difficult. Summary of the Invention

[0003] Based on the above analysis, the embodiments of the present invention aim to provide a dual-purpose coagulation spinning system, solving the problems of existing technologies where the spinning section requires a dedicated corrosion-resistant stainless steel platform or a special building structure, often with at least two layers. This results in significant operational difficulties between the upper and lower coagulation baths, and requires operators on each layer, increasing personnel requirements. Furthermore, the need for at least two layers of dedicated stainless steel platforms or buildings increases production line construction costs and time, makes equipment installation, maintenance, and production line modification difficult, and leads to the long-term independence of the two spinning technologies in fiber preparation routes, resulting in redundant production line construction and production costs. The spinning units of the high-performance dual-purpose spinning method have angle differences; the spin-out angle of wet spinning cannot be adjusted; the switching between wet and dry / wet spinning nozzles uses a threaded disassembly method, which is inefficient and prone to misoperation; there is friction in the assembly between the intermediate cylinder and the sealing ring, and the sealing ring will wear out after long-term use; each support rod needs to be adjusted individually, which is cumbersome and time-consuming; the macromolecular chains of the loose fiber bundles that are just spun out are scattered, resulting in poor mechanical properties and orientation; when the coagulation liquid is injected into the coagulation tank, the coagulation liquid contains air bubbles and impurities, and the air bubbles carrying impurities will adhere to the surface of the fiber bundle, resulting in poor fiber bundle quality.

[0004] The objective of this invention is mainly achieved through the following technical solutions: A dual-purpose solidification spinning system includes a first spinning mechanism, a second spinning mechanism, and a washing machine. The first spinning mechanism and the second spinning mechanism are arranged side by side on the ground. The first spinning mechanism and the second spinning mechanism are used to generate fiber bundles by jetting. The washing machine is located downstream of the first spinning mechanism and the second spinning mechanism and receives the fiber bundles output by the first spinning mechanism and the second spinning mechanism.

[0005] Furthermore, both the first spinning mechanism and the second spinning mechanism include a coagulation unit, a spinneret unit, and a steering unit.

[0006] Furthermore, the spinning unit includes a nozzle assembly and a nozzle support assembly. The nozzle assembly is mounted on the nozzle support assembly. Both the nozzle support assembly and the coagulation unit are mounted on the ground. The fiber bundle is pulled out from the nozzle assembly, solidified by the coagulation unit, and then enters the turning unit for turning.

[0007] Furthermore, the solidification unit includes a drawing roller, which is horizontally disposed on the inner wall of the solidification tank of the solidification unit.

[0008] Furthermore, the steering unit includes a steering bracket.

[0009] Furthermore, the steering unit also includes a reversing roller, a first guide wheel, and a second guide wheel, all of which are mounted on the steering bracket.

[0010] Furthermore, the steering unit also includes a torsion wheel, which is mounted on the steering bracket.

[0011] Furthermore, the steering unit also includes a wire-spreading finger wheel, which is mounted on the steering bracket.

[0012] Furthermore, the first spinning mechanism also includes a five-roller drawing machine, which is mounted on the solidification tank.

[0013] Furthermore, the five-roller wire drawing machine consists of five sets of roller rollers arranged in a three-upper-two-lower configuration.

[0014] Compared with the prior art, the present invention can achieve at least one of the following beneficial effects: (1) The first spinning mechanism and the second spinning mechanism of the spinning system of the present invention can be arranged side by side on the same plane. The spinning section does not need to be set up in two layers, the operation is easy, only one layer is configured with operators, and the number of personnel is small. There is no need to set up a double-layer special stainless steel platform or building, which reduces the construction cost and construction period of the production line. The installation, maintenance and production line modification of the equipment are simple. (2) The wet or dry-wet nozzle of the nozzle assembly of the present invention can switch the spin angle horizontally and vertically, thereby matching the requirements of different processes of wet spinning or dry-wet spinning for the spin angle; the spinning system of the present invention can take into account both process paths, without the need to add a solidification unit or adjust the production line layout, and can be used for two purposes, reducing the construction cost and construction period of the production line. (3) The swing arm body of the angle adjustment structure of the present invention rotates, the swing arm drives the swing head to slide along the swing groove, and pushes each support rod to rotate synchronously around the hinge point of the support seat and the support rod, thereby realizing the synchronous adjustment of the tilt angle of multiple sets of support rods; the swing head cooperates with the swing groove to prevent the angle of the support seat and the support rod from changing after adjustment; the worm gear enables the angle of the support seat and the support rod to be self-locked, increasing the structural stability of the nozzle bracket assembly; (4) The protrusion of the nozzle assembly of the present invention can be inserted into the hollow part of the protrusion groove along the axial direction of the seat body, and then the protrusion can be rotated into the recessed part of the protrusion groove along the circumferential direction of the seat body at a small angle, thereby completing the locking and shortening the assembly time. (5) The lug of the present invention is a magnetic lug; the protrusion is a magnetic protrusion, and the magnetic poles on the side opposite to the lug are the same. When the adapter tube is inserted into the seat body, the same poles of the protrusion and the magnetic lug repel each other. The repulsive force pushes the lug and the sealing ring to move along the axial direction of the seat body. The sealing ring can not contact the intermediate tube, thus preventing the sealing ring from wearing. The side opposite to the lug is linked by magnetic force, and there is no mechanical contact between them. The lug can be sealed inside the seat body, reducing the risk of leakage of the seat body and improving the overall sealing reliability and service life. (6) The fiber bundle is pre-stretched by the five-roller spinning machine of the present invention, which increases the wrap angle of the fiber bundle on the roller surface. The stretching causes the loose raw fiber macromolecular chains that have just been sprayed to align along the axis, which improves the mechanical properties and increases the orientation of the raw fiber. In addition, during the stretching process, the residual gas inside the fiber bundle is driven to escape, which reduces or reduces the defect structure such as pores inside the fiber bundle, thereby increasing the strength of the raw fiber. Under the stretching action of the five-roller machine, the raw fiber changes from a strip structure to a flat arrangement, which makes the fiber bundles arranged in an orderly manner, increases the width of the fiber bundle, increases the contact area between the fiber bundle and the coagulation liquid, improves the mass transfer and heat transfer efficiency between the fiber bundle and the coagulation liquid, promotes the spinning speed of the material spinning solution, and increases the strength of the raw fiber. (7) The filter unit of the present invention is used to collect bubbles and suspended impurities in the coagulation liquid to improve the quality of the fiber bundle; the filter screen is used to intercept and capture bubbles and suspended impurities that float with the flow of the coagulation liquid, and the bubbles collected in the casing are discharged outside the coagulation tank through the vent; the filter screen adopts a multi-layer microporous structure with a decreasing pore size gradient, which can intercept impurities of different particle sizes step by step, and form a double capture barrier with the filter screen to reduce the defect rate of the fiber bundle.

[0015] In this invention, the above-described technical solutions can be combined with each other to achieve more preferred combinations. Other features and advantages of this invention will be set forth in the following description, and some advantages may become apparent from the specification or be learned by practicing the invention. The objectives and other advantages of this invention can be realized and obtained from the content specifically pointed out in the text and accompanying drawings. Attached Figure Description

[0016] The accompanying drawings are for illustrative purposes only and are not intended to limit the invention. Throughout the drawings, the same reference numerals denote the same parts.

[0017] Figure 1 This is a front view schematic diagram of the spinning system; Figure 2 This is a top view of the spinning system. Figure 3 This is a schematic diagram of the longitudinal section of a solidification unit in a wet state. Figure 4 This is a schematic diagram of the longitudinal section of a solidification unit under dry and wet conditions. Figure 5 A front view structural diagram of the steering unit and the five-roller wire drawing machine; Figure 6 This is a schematic diagram of the exploded structure of the steering unit; Figure 7 This is a schematic diagram of the overall structure of the spinneret unit; Figure 8 This is a schematic diagram of the longitudinal section of the nozzle assembly; Figure 9 This is an exploded view of the nozzle support assembly; Figure 10 This is a schematic diagram of the overall structure of the filter unit.

[0018] Figure label: 1-First spinning mechanism; 2-Second spinning mechanism; 3-Washing machine; 11-Coagulation unit; 12-Spinning unit; 13-Directional unit; 14-Five-roller drawing machine; 15-Filtering unit; 100-Fiber bundle; 111-Coagulation tank; 112-Coagulation liquid; 113-Drawing roller; 114-Input cylinder; 121-Wet nozzle; 122-Dry and wet nozzle; 123-Nozzle holder; 124-Support base; 125-Support rod; 126-Swing rod; 127-Swing groove; 128-Worm gear; 129-Worm; 130 - Adapter cylinder; 131- Steering bracket; 132- Directional roller; 133- First guide wheel; 134- Torsion finger wheel; 135- Second guide wheel; 136- Spreading finger wheel; 151- Enclosure; 152- Filter screen; 153- Vent nozzle; 1231- Sealing body; 1232- Protrusion groove; 1233- Sealing ring; 1234- Sealing ring spring; 1235- Lug; 1236- Locking rod; 1261- Swing rod body; 1262- Swing arm; 1263- Swing head; 1301- Intermediate cylinder; 1302- Protrusion. Detailed Implementation

[0019] The preferred embodiments of the present invention will now be described in detail with reference to the accompanying drawings, which constitute a part of the present invention and are used together with the embodiments of the present invention to illustrate the principles of the present invention, but are not intended to limit the scope of the present invention.

[0020] Example 1: A specific embodiment of the present invention, such as Figure 1 As shown, a dual-purpose solidification spinning system (hereinafter referred to as the spinning system) is disclosed, including a first spinning mechanism 1, a second spinning mechanism 2 and a washing machine 3. The first spinning mechanism 1 and the second spinning mechanism 2 are arranged side by side on the ground. The first spinning mechanism 1 and the second spinning mechanism 2 are used to generate fiber bundles 100 by jetting. The washing machine 3 is located downstream of the first spinning mechanism 1 and the second spinning mechanism 2 and receives the fiber bundles 100 output by the first spinning mechanism 1 and the second spinning mechanism 2.

[0021] Preferably, such as Figure 2As shown, the first spinning mechanism 1 and the second spinning mechanism 2 have the same structure, both including a coagulation unit 11, a spinneret unit 12, and a turning unit 13. The coagulation unit 11 provides the coagulation environment required for wet or dry-wet spinning, and the spinneret unit 12 sprays the spinning solution to form fiber bundles 100. The fiber bundles 100 generated by the first spinning mechanism 1 and the second spinning mechanism 2 can be turned by their respective turning units 13 and enter the fiber guiding channel of a washing machine 3 for subsequent processes. In this embodiment, the first spinning mechanism 1 and the second spinning mechanism 2 of the spinning system can be arranged side by side on the same plane. The spinning section does not need to be set up in two layers, which reduces the difficulty of operation. Only one layer of operators is required, resulting in a smaller personnel quota. It does not require a double-layer dedicated stainless steel platform or building, reducing the construction cost and construction period of the production line. The installation, maintenance, and production line modification of the equipment are simple.

[0022] Preferably, the spinneret 12 includes a nozzle assembly and a nozzle support assembly. The nozzle assembly is mounted on the nozzle support assembly. Both the nozzle support assembly and the coagulation unit 11 are mounted on the ground. The fiber bundle 100 is pulled out from the nozzle assembly, solidified by the coagulation unit 11, and then enters the turning unit 13 for turning. The nozzle support assembly is used to change the filament output angle of the nozzle assembly.

[0023] When used in wet spinning, the nozzle assembly is required to have a horizontal tilt angle of 5-15°, while in dry-wet spinning, the nozzle assembly is required to spin the yarn vertically downwards. This difference in nozzle assembly angle is a problem in dual-purpose spinning methods. Furthermore, the long-standing independence of wet and dry-wet spinning technologies in fiber preparation has led to redundant production line construction and high production costs. Therefore, preferably, as... Figure 3 , Figure 4 and Figure 5 As shown, the nozzle assembly includes a wet nozzle 121, a wet-dry nozzle 122, and a nozzle holder 123. The nozzle holder 123 is connected to the nozzle support assembly. The wet nozzle 121 or the wet-dry nozzle 122 can be detachably connected to the nozzle holder 123. The wet nozzle 121 can spin yarn horizontally, while the wet-dry nozzle 122 is used for vertical spinning. By switching between the wet nozzle 121 and the wet-dry nozzle 122, the spinning angle can be switched between horizontal and vertical, thus matching the spinning angle requirements of different processes. By switching between the wet nozzle 121 and the wet-dry nozzle 122 in the nozzle assembly, the spinning system of this embodiment utilizes only one coagulation unit 11, enabling both wet and wet-dry coagulation spinning, achieving dual-purpose functionality and reducing the construction cost and time of the production line.

[0024] Preferably, such as Figure 3 and Figure 4As shown, the coagulation unit 11 includes a coagulation tank 111 and a coagulation liquid 112, with the coagulation tank 111 containing the coagulation liquid 112. In wet spinning, the wet spinning nozzle 121 is immersed in the coagulation liquid 112, and the fiber bundle 100 is directly ejected from the wet spinning nozzle 121 below the liquid surface and coagulated. The coagulation unit 11 also includes a drawing roller 113, which is horizontally positioned on the inner wall of the coagulation tank 111. In dry-wet spinning, the dry-wet spinning nozzle 122 is positioned above the liquid surface of the coagulation liquid 112, and the fiber bundle 100 enters the coagulation liquid 112 vertically, completing initial forming at the gas-liquid interface, and then being guided by the drawing roller 113 to enter subsequent processes. The spinning system of this embodiment can accommodate both process paths, eliminating the need for redundant production line construction and reducing production costs.

[0025] Preferably, such as Figure 5 and Figure 6 As shown, the steering unit 13 includes a steering bracket 131, a reversing roller 132, a first guide wheel 133, a torsion wheel 134, and a second guide wheel 135. The reversing roller 132, the first guide wheel 133, the torsion wheel 134, and the second guide wheel 135 are all mounted on the steering bracket 131. The fiber bundle 100 changes its path through the reversing roller 132. The reversing roller 132 intercepts most of the coagulated liquid 112 carried by the fiber bundle 100. After the fiber bundle 100 changes direction, it is led to the first guide wheel 133 and then turned 45° by the torsion wheel 134. From the torsion wheel 134, it turns another 45° to the second guide wheel, for a total turning angle of 90°.

[0026] Preferably, the steering unit 13 further includes a filament-spreading finger wheel 136, which is mounted on the steering bracket 131. The fiber bundle 100 is flattened at the filament-spreading finger wheel 136. The rotating surfaces of the first guide wheel 133, the torsion finger wheel 134, the second guide wheel 135, and the filament-spreading finger wheel 136 are all provided with multiple annular grooves. The annular grooves are used to separate adhered monofilaments and improve the uniformity of the fiber bundle 100.

[0027] To address the issue of the inability to adjust the spin-out angle in wet spinning, preferably, as follows: Figure 7 As shown, the nozzle support assembly includes a support base 124, a support rod 125, and an angle adjustment structure. The support base 124 is fixed to the ground, and the support rod 125 is connected to the support base 124 through the angle adjustment structure. The support rod 125 can be continuously adjusted within the range of 0° to 20° to adapt to either the dry / wet nozzle 122 or the wet nozzle 121.

[0028] When adjusting the angle of the support base 124 and the support rod 125, it is necessary to adjust each support rod 125 individually, which is cumbersome and time-consuming. To address this, the support base 124 and the support rod 125 are connected by a hinge, and the angle adjustment structure includes a swing arm 126, which can adjust the horizontal tilt angle of multiple support rods 125 simultaneously.

[0029] Specifically, such as Figure 9 As shown, the support rod 125 is provided with a swing groove 127. The swing rod 126 includes a swing rod body 1261, and a plurality of swing arms 1262 and swing heads 1263 arranged axially along the swing rod body 1261. One end of the swing arm 1262 is connected to the swing rod body 1261, and the other end of the swing arm 1262 is connected to the swing head 1263. The swing head 1263 is embedded in the swing groove 127. When the swing rod body 1261 rotates, the swing arm 1262 drives the swing head 1263 to slide along the swing groove 127, pushing each support rod 125 to rotate synchronously around the hinge point of the support base 124 and the support rod 125, thereby realizing the synchronous adjustment of the tilt angle of multiple sets of support rods 125; the swing head 1263 cooperates with the swing groove 127 to prevent the angle of the support base 124 and the support rod 125 from changing after adjustment.

[0030] Preferably, in order to drive the rocker arm 126, the angle adjustment structure of this embodiment further includes a worm gear 128 and a worm 129. The worm gear 128 is coaxially and fixedly connected to the rocker arm body 1261, and the worm 129 is rotatably mounted on the support base 124 and meshes with the worm gear 128. The lead angle of the worm 129 is less than or equal to the equivalent friction angle, ensuring that the angles of the support base 124 and the support rod 125 can be self-locking, thereby increasing the structural stability of the nozzle support assembly.

[0031] Preferably, the nozzle bracket assembly of this embodiment further includes a drive motor and a reducer (not shown in the figure). The drive motor is linked to the worm gear 129 through the reducer to electrically adjust the angle of the support base 124 and the support rod 125, saving manpower.

[0032] Regarding the switching between wet spray head 121 and dry-wet spray head 122, if a threaded disassembly method is used, there are problems such as low efficiency and easy misoperation. Therefore, preferably, as follows: Figure 4 As shown, the nozzle assembly also includes an adapter tube 130, which is disposed on the wet nozzle 121 or the dry-wet nozzle 122. The adapter tube 130 is used for quick connection with the nozzle holder 123.

[0033] Specifically, such as Figure 8 As shown, the adapter cylinder 130 includes an intermediate cylinder 1301 and a protrusion 1302. One end of the intermediate cylinder 1301 is connected to a wet spray head 121 or a dry-wet spray head 122. The protrusion 1302 is disposed on the outer periphery of the other end of the intermediate cylinder 1301. Multiple protrusions 1302 are provided and are evenly distributed along the circumference of the intermediate cylinder 1301.

[0034] Preferably, the nozzle holder 123 includes a cylindrical holder body 1231 and a protrusion groove 1232. The protrusion groove 1232 is arranged circumferentially along the inner wall of the holder body 1231. The protrusion 1302 can be inserted into the hollow part of the protrusion groove 1232 along the axial direction of the holder body 1231. Furthermore, the protrusion 1302 can be rotated into the recess of the protrusion groove 1232 at a small angle along the circumference of the holder body 1231, thereby completing the locking and shortening the assembly time. The rotation angle is 10-45°, depending on the number of protrusions 1302.

[0035] To address the issue of solution leakage caused by a loose connection between the nozzle holder 123 and the adapter cylinder 130, preferably, the nozzle holder 123 further includes a sealing ring 1233, which is embedded in the inner wall of the holder body 1231. When the adapter cylinder 130 is inserted into the protrusion groove 1232, the intermediate cylinder 1301 can connect with the sealing ring 1233 and seal the adapter cylinder 130.

[0036] To address the issue of wear and tear on fixed sealing rings after repeated use, leading to decreased sealing performance, the sealing ring 1233 is preferably a movable sealing ring. The nozzle holder 123 also includes a sealing ring spring 1234, with one end of the spring abutting against the sealing ring 1233 and the other end abutting against the inner wall of the holder body 1231. When the adapter cylinder 130 is inserted, the sealing ring spring 1234 drives the sealing ring 1233 to connect with the intermediate cylinder 1301, compensating for wear caused by repeated connections of the sealing ring 1233 and increasing the sealing reliability of the sealing ring 1233 during long-term use.

[0037] To address the frictional issues arising during the assembly of the intermediate cylinder 1301 and the sealing ring 1233, which can lead to wear and tear on the sealing ring 1233 over time, a lug 1235 is provided on the outer wall of the sealing ring 1233 to reduce frictional resistance. The lug 1235 is evenly distributed circumferentially along the sealing ring 1233 and is magnetic. A magnetic protrusion 1302 is also present, with the same magnetic pole on the opposite side of the lug 1235. When the adapter cylinder 130 is inserted into the seat body 1231, the protrusion 1302 and the magnetic lug 1235 repel each other with the same pole. The repulsive force pushes the lug 1235 and the sealing ring 1233 to move inward along the axial direction of the seat body 1231, and compresses the sealing ring spring 1234. The sealing ring 1233 can avoid contact with the intermediate cylinder 1301, preventing the sealing ring 1233 from wearing. When the adapter cylinder 130 is rotated so that the protrusion 1302 is screwed into the protrusion groove 1232, the protrusion 1302 and the lug 1235 are misaligned on the opposite side, and the repulsive force weakens. The sealing ring spring 1234 rebounds and pushes the sealing ring 1233 to fit against the intermediate cylinder 1301, realizing automatic sealing. The protrusion 1302 and the lug 1235 are magnetically linked on opposite sides, with no mechanical contact between them. The lug 1235 can be sealed within the seat body 1231, reducing the risk of leakage in the seat body 1231 and improving the overall sealing reliability and service life. Accordingly, the seat body 1231 is made of copper or polymer material, possessing both magnetic conductivity and structural strength.

[0038] Preferably, in order to lock the rotational position of the adapter cylinder 130 and prevent it from loosening under working vibration, the outer wall of the base body 1231 is provided with a locking rod groove and a locking rod 1236. The locking rod 1236 is set on the locking rod groove and can fall down by gravity. When the protrusion 1302 is screwed into the protrusion groove 1232, the locking rod 1236 is used to circumferentially stop the protrusion 1302, ensuring that the adapter cylinder 130 cannot rotate circumferentially after being locked.

[0039] Compared with the prior art, the first spinning mechanism 1 and the second spinning mechanism 2 of the spinning system in this embodiment can be arranged side by side in a plane. The spinning section does not need to be set up in two layers, which reduces the difficulty of operation. Only one layer is required for operators, resulting in a smaller personnel quota. It does not require the setting of a double-layered dedicated stainless steel platform or building, reducing the construction cost and construction period of the production line. The installation, maintenance and production line modification of the equipment are simple. In this embodiment, the wet nozzle 121 or the dry-wet nozzle 122 of the nozzle assembly can be detachably connected to the nozzle seat 123. The wet nozzle 121 can spin yarn horizontally, and the dry-wet nozzle 122 is used for vertical spinning. By changing the wet nozzle 121 and the dry-wet nozzle 122, the horizontal and vertical spinning angle can be switched, thereby matching wet spinning or dry-wet spinning. Different spinning processes have different requirements for the spinning angle; the spinning system of this embodiment can accommodate two process paths without the need for additional solidification unit 11 or adjustment of production line layout, making it a dual-purpose machine and reducing the construction cost and construction period of the production line; the swing arm body 1261 of the angle adjustment structure of this embodiment rotates, the swing arm 1262 drives the swing head 1263 to slide along the swing groove 127, and pushes each support rod 125 to rotate synchronously around the hinge point of the support seat 124 and the support rod 125, thereby realizing the synchronous adjustment of the tilt angle of multiple sets of support rods 125; the swing head 1263 cooperates with the swing groove 127 to prevent the angle of the support seat 124 and the support rod 125 from changing after adjustment; the worm gear 129 is rotatably mounted on the support seat 124 and meshes with the worm wheel 128. The lead angle of the worm gear 129 is less than or equal to the equivalent friction angle, ensuring that the angles of the support base 124 and the support rod 125 can be self-locking, thereby increasing the structural stability of the nozzle support assembly. The support rod 125 can be continuously adjusted within the range of 0° to 20°, and is used for dry and wet nozzles 122 or wet nozzles 121, respectively.

[0040] The nozzle assembly's protrusion groove 1232 and protrusion 1302 form a radial limiting and axial positioning fit. Protrusion 1302 can be inserted into the hollow part of protrusion groove 1232 along the axial direction of the seat body 1231, and then protrusion 1302 can be screwed into the recess of protrusion groove 1232 along the circumference of seat body 1231 at a small angle to complete the locking, shortening the assembly time. The sealing ring 1233 is a movable sealing ring. The nozzle seat 123 also includes a sealing ring spring 1234. One end of the sealing ring spring 1234 abuts against the sealing ring 1233, and the other end of the sealing ring spring 1234 abuts against the inner wall of seat body 1231. When the adapter cylinder 130 is inserted, the sealing ring spring 1234 drives the sealing ring 1233 to connect with the intermediate cylinder 1301, compensating for the wear caused by the repeated connection of the sealing ring 1233. This design increases the sealing reliability of the sealing ring 1233 during long-term use. The lug 1235 is a magnetic lug. The protrusion 1302 is a magnetic protrusion, and the magnetic poles on the opposite side of the protrusion 1302 and the lug 1235 are the same. When the adapter cylinder 130 is inserted into the seat body 1231, the protrusion 1302 and the magnetic lug 1235 repel each other due to their similar poles. The repulsive force pushes the lug 1235 and the sealing ring 1233 to move inward along the axial direction of the seat body 1231. The sealing ring 1233 can avoid contact with the intermediate cylinder 1301, preventing wear of the sealing ring 1233. The protrusion 1302 and the lug 1235 are linked by magnetic force on the opposite side, with no mechanical contact between them. The lug 1235 can be sealed inside the seat body 1231, reducing the leakage risk of the seat body 1231 and improving the overall sealing reliability and service life.

[0041] Example 2: The newly ejected, loose fiber bundles (100) exhibit problems such as disordered macromolecular chains, poor mechanical properties, and poor orientation. Therefore, as... Figure 5 As shown, this embodiment adds a five-roller wire drawing machine 14 to the first embodiment, and the five-roller wire drawing machine 14 is set on the solidification tank 111.

[0042] Specifically, the five-roller fiber drawing machine 14 consists of five sets of rollers arranged in a three-upper-two-lower configuration. The set of rollers located at the bottom and close to the spinneret 12 is the first roller, the three sets of rollers located at the top are the second rollers, and the set of rollers located at the bottom and away from the spinneret 12 is the third roller. After the fiber bundle 100 is drawn out from the coagulation tank 111, it passes sequentially around the first roller, the second roller, and the third roller before entering the turning unit 13.

[0043] The fiber bundle 100 is pre-stretched by the five-roller spinning machine 14, which increases the wrap angle of the fiber bundle 100 on the roller surface. The stretching causes the loosened macromolecular chains of the newly ejected raw filament fibers to align axially, improving mechanical properties and increasing the orientation degree of the raw filament fibers. During the stretching process, due to the stretching and squeezing action of the rollers, the residual gas inside the fiber bundle 100 is driven to escape, reducing or shrinking defects such as pores inside the fiber bundle 100, thus increasing the strength of the raw filament fibers. Under the stretching action of the five-roller machine, the raw filament fibers change from a strip structure to a flattened arrangement, making the fiber bundle 100 filaments arranged in an orderly manner. The width of the fiber bundle 100 increases, increasing the contact area between the fiber bundle 100 and the coagulation liquid 112, improving the mass and heat transfer efficiency between the fiber bundle 100 and the coagulation liquid 112, promoting the filament formation speed of the spinning solution, and increasing the strength of the raw filament fibers.

[0044] Example 3: When the coagulation liquid 112 is injected into the coagulation tank 111, there are air bubbles and impurities in the coagulation liquid 112. The air bubbles carrying impurities will adhere to the surface of the fiber bundle 100, resulting in poor quality of the fiber bundle 100. Therefore, as Figure 3 and Figure 4 As shown, this embodiment adds a filter unit 15 based on embodiment one or embodiment two. The filter unit 15 is used to collect air bubbles and suspended impurities in the coagulated liquid 112 to improve the quality of the fiber bundle 100.

[0045] Specifically, such as Figure 4 and Figure 10 As shown, the coagulation unit 11 also includes an input cylinder 114, which is disposed on the outer wall of the coagulation tank 111. The filtration unit 15 includes a housing 151 and a filter screen 152. The housing 151 is a hollow rectangular frame fixed to the inner wall of the coagulation tank 111. The filter screen 152 is tautly fixed to the housing 151 and is used to intercept and capture air bubbles and suspended impurities that float to the surface as the coagulation liquid 112 flows into the housing 151 through the input cylinder 114. A vent 153 is provided at the top of the housing 151, through which air bubbles collected inside the housing 151 are discharged outside the coagulation tank 111.

[0046] Preferably, in order to enhance the gas collection and filtration effect, the filter unit 15 also includes a filter screen (not shown in the figure). The filter screen is located on the inner side of the filter screen 152 near the casing 151. The filter screen adopts a multi-layer microporous structure with a decreasing pore size gradient, which can intercept impurities of different particle sizes step by step, forming a double capture barrier with the filter screen 152. When the condensate 112 flows through the filter unit 15, the bubbles continue to rise under the action of buoyancy and are blocked and aggregated by the filter screen 152, and then discharged through the vent 153. The suspended impurities are intercepted by the filter screen 152 and the filter screen together, reducing the defect rate of the fiber bundle 100.

[0047] Compared to Embodiment 1 or 2, this embodiment adds a filter unit 15, which is used to collect bubbles and suspended impurities in the coagulation liquid 112 to improve the quality of the fiber bundle 100. The filter screen 152 is used to intercept and capture bubbles and suspended impurities that float with the flow of the coagulation liquid 112. The bubbles collected in the casing 151 are discharged outside the coagulation tank 111 through the vent 153. The filter screen adopts a multi-layer microporous structure with a decreasing pore size gradient, which can intercept impurities of different particle sizes step by step, forming a double capture barrier with the filter screen 152. When the coagulation liquid 112 flows through the filter unit 15, the bubbles continue to float under the action of buoyancy and are blocked and aggregated by the filter screen 152, and then discharged through the vent 153. The suspended impurities are intercepted by the filter screen 152 and the filter screen together, reducing the defect rate of the fiber bundle 100.

[0048] The above description is only a preferred embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any changes or substitutions that can be easily conceived by those skilled in the art within the scope of the technology disclosed in the present invention should be included within the scope of protection of the present invention.

Claims

1. A dual-purpose solidification spinning system, characterized in that, The device includes a first spinning mechanism (1), a second spinning mechanism (2), and a washing machine (3). The first spinning mechanism (1) and the second spinning mechanism (2) are arranged side by side on the ground. The first spinning mechanism (1) and the second spinning mechanism (2) are used to generate fiber bundles (100) by jetting. The washing machine (3) is located downstream of the first spinning mechanism (1) and the second spinning mechanism (2) and receives the fiber bundles (100) output by the first spinning mechanism (1) and the second spinning mechanism (2).

2. The dual-purpose solidification spinning system according to claim 1, characterized in that, Both the first spinning mechanism (1) and the second spinning mechanism (2) include a solidification unit (11), a spinneret unit (12), and a steering unit (13).

3. The dual-purpose solidification spinning system according to claim 2, characterized in that, The spinneret (12) includes a nozzle assembly and a nozzle support assembly. The nozzle assembly is mounted on the nozzle support assembly. Both the nozzle support assembly and the coagulation unit (11) are mounted on the ground. The fiber bundle (100) is pulled out from the nozzle assembly, solidified by the coagulation unit (11), and then enters the turning unit (13) for turning.

4. The dual-purpose solidification spinning system according to claim 2, characterized in that, The solidification unit (11) includes a wire drawing roller (113), which is horizontally disposed on the inner wall of the solidification tank (111) of the solidification unit (11).

5. The dual-purpose solidification spinning system according to claim 2, characterized in that, The steering unit (13) includes a steering bracket (131).

6. The dual-purpose solidification spinning system according to claim 5, characterized in that, The steering unit (13) further includes a reversing roller (132), a first guide wheel (133), and a second guide wheel (135), all of which are mounted on the steering bracket (131).

7. The dual-purpose solidification spinning system according to claim 6, characterized in that, The steering unit (13) also includes a torsion wheel (134), which is mounted on the steering bracket (131).

8. The dual-purpose solidification spinning system according to claim 7, characterized in that, The steering unit (13) also includes a wire-spreading finger wheel (136), which is mounted on the steering bracket (131).

9. The dual-purpose solidification spinning system according to claim 4, characterized in that, The first spinning mechanism (1) further includes a five-roller drawing machine (14), which is mounted on the solidification tank (111).

10. The dual-purpose solidification spinning system according to claim 9, characterized in that, The five-roller drawing machine (14) consists of five sets of rollers arranged in a three-upper-two-lower configuration.

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