Wet spinning unit system and uninterrupted spinning method of superfine polyamide filament

Abstract

The application provides a wet spinning unit system and an uninterrupted spinning method of superfine polyamide yarn, which comprises the following steps: preparing a spinning dope, extruding the spinning dope from a spinning hole to form a stream, coagulating the stream of the spinning dope into a nascent fiber and winding the nascent fiber or directly carrying out post-treatment, and the step of extruding the spinning dope from the spinning hole to form the stream comprises a support frame, a box body, a heat dissipation hole, a box door, a protective cover, a liquid storage tank, a valve cover, a water tank, a spinning hole, a locking mechanism, an opening and closing mechanism, a feeding mechanism and a synchronous driving mechanism, the locking mechanism comprises a first limiting rod, a rotating disc, an arc-shaped groove, a first rotating rod, a clamping piece, a second rotating rod and a first connecting strip, and the first limiting rod is fixed on the top of the box body at equal intervals; the application can realize automatic opening and automatic locking, can feed according to the required amount of feeding, and can produce mechanical linkage between the opening and closing of the valve cover and the automatic feeding, thereby improving the stability of mutual cooperation.

Description

Technical Field

[0001] This invention relates to the technical field of wet spinning unit systems and uninterrupted spinning methods for nylon yarn, and particularly to a wet spinning unit system and uninterrupted spinning method for ultrafine nylon yarn. Background Technology

[0002] Chinese Patent CN 105297153 B discloses an electrostatically assisted wet spinning apparatus and method. The wet spinning apparatus includes an injection pump, a spinning injector, an electrostatic generator, a rotary motor, a coagulation bath, and a receiving shaft. The spinning injector is fixed to the injection pump. The needle of the spinning injector is connected to the positive terminal of the electrostatic generator via a wire. The rotary motor is connected to the receiving shaft, driving it to rotate. The receiving shaft is connected to the negative terminal of the electrostatic generator via a wire. The lower end of the receiving shaft is below the liquid surface of the coagulation bath. The needle of the spinning injector is inserted below the liquid surface of the coagulation bath. Using this apparatus, the spinning solution gradually elongates and thins under the combined action of shear force and electrostatic force. The solvent in the spinning solution gradually diffuses into the coagulation bath, and the spinning solution gradually solidifies into fibers. Finally, the fibers are received by the receiving shaft to form an oriented fiber membrane, which is then dried to obtain a micro / nanofiber membrane material.

[0003] Existing nylon yarn wet spinning processes, like the aforementioned patent, still suffer from the following problems: Existing wet spinning equipment pressurizes the barrel, forcing the raw solution into a nozzle with extremely fine nozzle holes. The solution is sprayed into a water tank, cooled, and forms very fine yarn, which is then wound up and drawn out, thus completing the wet spinning process. Because a pump cannot be used to extract the raw solution, an air pump is used to pressurize the storage tank to spray it out. Nylon yarn production requires four steps: 1. Preparing the spinning solution; 2. [The text abruptly ends here, likely due to an incomplete sentence or missing information.] 3. The raw liquid is extruded from the spinneret to form a fine stream; 4. The raw liquid stream solidifies into nascent fibers; 5. The nascent fibers are rolled or directly processed. When the raw liquid is added to the storage tank, it is extruded from the spinneret to form the fiber. Only one-quarter of the raw liquid is used during production, and three-quarters of the raw liquid remains in the tank. Since the full volume of the storage tank is sufficient to produce a certain amount of goods, it is necessary to replenish the liquid. The existing liquid replenishment usually involves directly adding raw liquid to the storage tank, which cannot accurately replenish the amount of raw liquid as needed. There are cases of overfilling or underfilling.

[0004] Therefore, it is necessary to provide a new wet spinning unit system for nylon yarn and a continuous spinning method to solve the above-mentioned technical problems. Summary of the Invention

[0005] To solve the above-mentioned technical problems, the present invention provides a wet spinning unit system for ultrafine nylon yarn and a continuous spinning method.

[0006] This invention provides a wet spinning unit system and uninterrupted spinning method for ultrafine nylon yarn, including preparing a spinning solution, pressing the solution out of a spinneret to form a fine stream, solidifying the fine stream into nascent fibers, and packaging or directly performing post-processing on the nascent fibers. Pressing the solution out of the spinneret to form a fine stream includes:

[0007] Support frame;

[0008] The housing is fixed to the surface of the support frame;

[0009] The ventilation holes are located on the outside of the housing.

[0010] The door is hinged to one side of the box body;

[0011] A protective cover is installed on the surface of the enclosure;

[0012] A liquid storage tank is fixed to the inner wall of the box body;

[0013] The valve cover is slidably connected to the surface of the liquid storage tank;

[0014] The water tank is fixed to the surface of the support frame;

[0015] The spinneret hole is located on the side of the housing near the water tank;

[0016] A locking mechanism is installed on the surface of the housing for locking the valve cover;

[0017] An opening and closing mechanism is installed on the surface of the housing for opening and closing the valve cover;

[0018] A feeding mechanism is installed on one side of the housing and is used to feed the liquid storage tank while opening and closing the valve cover.

[0019] The synchronous drive mechanism is installed on the side of the housing located on the side of the feeding mechanism.

[0020] Preferably, the locking mechanism includes a first limiting rod, a rotating disk, an arc-shaped groove, a first rotating rod, a clamping piece, a second rotating rod, and a first connecting strip. The first limiting rod is fixed at equal intervals on the top of the housing. The rotating disk is rotatably connected to the surface of the housing via bearings. Arc-shaped grooves are rotatably formed on the surface of the rotating disk at equal intervals. The inner wall of the arc-shaped grooves is slidably connected to the outer wall of the first limiting rod. The first rotating rod is rotatably connected to the top of the housing via bearings at equal intervals. A clamping piece is fixed to the surface of the first rotating rod. The second rotating rod is rotatably connected to the surface of the rotating disk via bearings at equal intervals. A first connecting strip is fixed to the surface of the second rotating rod. One end of the first connecting strip is fixed to the top of the clamping piece. The bottom of the clamping piece is in contact with the surface of the valve cover.

[0021] Preferably, the opening and closing mechanism includes a second limiting rod, a limiting block, an L-shaped strip, a spring, a connecting block, a moving part, a rack, a gear, a third rotating rod, a disc, a fourth rotating rod, a rotating bar, and a fifth rotating rod. The top of the housing is fixed with the second limiting rod, and the surface of the second limiting rod is slidably connected to the L-shaped strip through a sliding hole. The top of the valve cover is fixed with the connecting block, and the inner wall of the L-shaped strip is fixed with a spring. One end of the spring is fixed to the connecting block, and the outer wall of the connecting block is slidably connected to the inner wall of the L-shaped strip. The top of the housing is slidably connected with the moving part, and the top of the moving part is fixed with a rack. One side of the housing is rotatably connected with the third rotating rod through a bearing. The end of the third rotating rod near the rack is fixed with a gear, and the end of the third rotating rod away from the gear is fixed with a disc. The surface of the disc is rotatably connected with the fourth rotating rod through a bearing, and the surface of the fourth rotating rod is rotatably connected with the rotating bar through a bearing. The side of the L-shaped strip near the rotating bar is rotatably connected with the fifth rotating rod through a bearing, and one end of the rotating bar is rotatably connected to the fifth rotating rod through a bearing.

[0022] Preferably, the replenishment mechanism includes a flow tank, a replenishment tank, a first connecting pipe, a first one-way valve, a second connecting pipe, a second one-way valve, a second connecting strip, and a piston. The flow tank and the replenishment tank are fixed sequentially on one side of the housing. The piston is slidably connected to the inner wall of the flow tank. The bottom of the flow tank and the replenishment pipe are connected through the first connecting pipe. The first one-way valve is connected to the end of the first connecting pipe near the flow tank. The flow tank is connected to the storage tank through the second connecting pipe. The top of the valve cover is fixed with a second connecting strip, and one end of the second connecting strip is fixed to the top of the piston.

[0023] Preferably, the synchronous drive mechanism includes a motor and a screw. The motor is fixed on the side of the housing near the flow tank, and the screw is rotatably connected to the top of the housing via a bearing. The moving part is threadedly connected to the screw via a threaded hole.

[0024] Preferably, the top of the housing is symmetrically fixed with a slide rail on one side of the screw, and the bottom of the moving part is provided with a slide groove, and the moving part is slidably connected to the outer wall of the slide rail through the slide groove.

[0025] Preferably, the top of the movable component pushes the rotating disk via a pushing assembly.

[0026] Preferably, the pushing assembly includes a first shaft pin, a first rotating plate, a second shaft pin, and a second rotating plate. The top of the moving part is rotatably connected to the first shaft pin via a bearing. The top of the first shaft pin is fixed to the first rotating plate. The surface of the rotating disk is rotatably connected to the second shaft pin via a bearing. The surface of the second shaft pin is fixed to the second rotating plate. The end of the first rotating plate near the second rotating plate is fixed to the second rotating plate.

[0027] This invention also provides a wet continuous spinning method for ultrafine nylon yarn, which employs the aforementioned wet spinning unit system for ultrafine nylon yarn. The wet continuous spinning method for ultrafine nylon yarn specifically includes the following steps:

[0028] S1. By reversing the synchronous drive mechanism for two seconds, the pushing component pushes the locking mechanism and the valve cover to release the limit and cooperate with the opening and closing mechanism to lift the valve cover and open it.

[0029] S2. After opening the valve cover, observe the remaining material in the storage tank. Then, according to how many seconds the synchronous drive mechanism rotates, match the required liquid replenishment level and drive the opening and closing mechanism to rise to that level.

[0030] S3. According to the required feeding level, the opening and closing mechanism drives the feeding mechanism to draw the original liquid into the feeding mechanism.

[0031] S4. The synchronous drive mechanism rotates forward for the same number of seconds as the required replenishment level, driving the replenishment mechanism to deliver the original liquid to the storage tank for replenishment.

[0032] The raw liquid in the storage tank can be used for a period of time. When the raw liquid in the storage tank is used up, the spinning can be continuously carried out. After the spun filaments are cooled, they are wound up. When the raw liquid in the storage tank is used up, the last filaments spun out from the spinneret are not broken. Then the storage tank is replenished. After the replenishment is completed, the filaments are wound up again, thus achieving uninterrupted spinning.

[0033] Preferably, in step 1, the synchronous drive mechanism reverses for two seconds, causing the pushing component to push the locking mechanism and the valve cover to release the limiting action, thus opening the valve cover; and in step 2, after the valve cover is opened, the remaining material in the storage tank is observed, and then the synchronous drive mechanism reverses for four seconds and drives the opening and closing mechanism to rise for four seconds to reach the desired position; and in step 3, according to the required replenishment position, the opening and closing mechanism rises for four seconds, driving the replenishment mechanism to extract five liters of raw liquid and deliver it to the replenishment mechanism. In step 4, the synchronous drive mechanism rotates forward for four seconds, which drives the feeding mechanism to pump five liters of raw liquid and deliver it to the storage tank for replenishment. The raw liquid in the storage tank can be used for a period of time. When the raw liquid in the storage tank is used up, the spinning can be continuously carried out. After the spun filaments are cooled, they are wound up. When the raw liquid in the storage tank is used up, the last filaments spun from the spinneret are not broken. Then the storage tank is replenished. After replenishment, the filaments are wound up again, thus achieving uninterrupted spinning.

[0034] Compared with related technologies, the wet spinning unit system and uninterrupted spinning method for nylon yarn provided by this invention have the following advantages:

[0035] 1. The wet spinning unit system and uninterrupted spinning method of the nylon yarn are equipped with a locking mechanism. The moving parts are driven by the forward and reverse rotation of the drive motor to push the rotating disk to slide along the arc groove, so that the clamping plate and the surface of the valve cover are pressed into contact to lock the valve cover.

[0036] 2. The wet spinning unit system and uninterrupted spinning method of this nylon yarn are equipped with an opening and closing mechanism. The drive motor drives the moving parts to move in both forward and reverse directions, while the rack and pinion gear rotates. This causes the disc to rotate, which in turn drives the crank connecting rod to rotate, causing the L-shaped rod to slide along the scale rod, thereby opening and closing the valve cover.

[0037] 3. The wet spinning unit system and uninterrupted spinning method of this nylon yarn, by being equipped with a feeding mechanism, can provide different feeding liquids according to the different opening and closing heights of the valve cover.

[0038] 4. The wet spinning unit system and uninterrupted spinning method of this nylon yarn, by setting a synchronous drive mechanism, enables the locking mechanism, opening and closing mechanism and feeding mechanism to work in a mechanical linkage, thereby improving the stability of their mutual cooperation. Attached Figure Description

[0039] Figure 1 This is a schematic diagram of the overall structure of the present invention;

[0040] Figure 2 This is a schematic diagram of the valve cover of the present invention;

[0041] Figure 3 This is a schematic diagram of the clamping piece of the present invention;

[0042] Figure 4 This is a schematic diagram of the moving part of the present invention;

[0043] Figure 5 This is an enlarged view of point A in the present invention;

[0044] Figure 6 This is a schematic diagram of the second connecting strip of the present invention;

[0045] Figure 7 This is an enlarged view of section B of the present invention;

[0046] Figure 8 This is a schematic diagram of the flow container of the present invention;

[0047] Figure 9 This is a schematic diagram of the fluid replenishment tank of the present invention;

[0048] Figure 10 This is a schematic diagram of the L-shaped strip of the present invention;

[0049] Figure 11 This is a schematic diagram of the first connecting pipe of the present invention.

[0050] Numbered components in the diagram: 1. Support frame; 101. Box body; 102. Heat dissipation hole; 103. Box door; 104. Protective cover; 105. Liquid storage tank; 106. Valve cover; 107. Water tank; 108. Spinneret hole; 2. Locking mechanism; 201. First limit rod; 202. Rotating disk; 203. Arc groove; 204. First rotating rod; 205. Clamping piece; 206. Second rotating rod; 207. First connecting bar; 3. Opening and closing mechanism; 301. Second limit rod; 302. Limiting block; 303. L-shaped bar; 304. Spring; 305. Connecting block; 306. Moving part; 307. Rack; 308. Gear; 309. 310. Third rotating rod; 311. Disc; 312. Fourth rotating rod; 313. Rotating bar; 314. Fifth rotating rod; 4. Feeding mechanism; 401. Flow tank; 402. Replenishment tank; 403. First connecting pipe; 404. First one-way valve; 405. Second connecting pipe; 406. Second one-way valve; 407. Second connecting bar; 408. Piston; 5. Synchronous drive mechanism; 501. Motor; 502. Screw; 6. Slide rail; 601. Slide groove; 7. Pushing assembly; 701. First shaft pin; 702. First rotating plate; 703. Second shaft pin; 704. Second rotating plate; 8. Self-locking universal wheel; 9. Gear slot. Detailed Implementation

[0051] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0052] Example 1

[0053] Please see Figures 1 to 11 This invention provides two technical solutions: a wet spinning unit system for ultrafine nylon yarn, including a forming unit, which presses the raw liquid from the spinneret of the forming unit to form a fine stream, and then cools it to solidify the fine stream into nascent fibers. The solidified nascent fibers are then wound up by a winding unit or directly processed. The forming unit includes: a support frame 1, a box 101, a heat dissipation hole 102, a box door 103, a protective cover 104, a liquid storage tank 105, a valve cover 106, a water tank 107, a spinneret 108, a locking mechanism 2, an opening and closing mechanism 3, a feeding mechanism 4, and a synchronous drive mechanism 5.

[0054] In this embodiment of the invention, the locking mechanism 2 includes a first limiting rod 201, a rotating disk 202, an arc-shaped groove 203, a first rotating rod 204, a clamping piece 205, a second rotating rod 206, and a first connecting strip 207. The first limiting rod 201 is fixed at equal intervals on the top of the housing 101. The rotating disk 202 is rotatably connected to the surface of the housing 101 via bearings. The surface of the rotating disk 202 is provided with arc-shaped grooves 203 at equal intervals. The inner wall of the arc-shaped grooves 203 is flush with the first limiting rod 201. The outer wall of the valve cover 106 is slidably connected. The top of the housing 101 is rotatably connected to the first rotating rod 204 at equal intervals via bearings. A clamping piece 205 is fixed to the surface of the first rotating rod 204. The surface of the rotating disk 202 is rotatably connected to the second rotating rod 206 at equal intervals via bearings. A first connecting strip 207 is fixed to the surface of the second rotating rod 206. One end of the first connecting strip 207 is fixed to the top of the clamping piece 205. The bottom of the clamping piece 205 is in contact with the surface of the valve cover 106.

[0055] In this embodiment of the invention, the opening and closing mechanism 3 includes a second limiting rod 301, a limiting block 302, an L-shaped strip 303, a spring 304, a connecting block 305, a moving part 306, a rack 307, a gear 308, a third rotating rod 309, a disc 310, a fourth rotating rod 311, a rotating bar 312, and a fifth rotating rod 313. The top of the housing 101 is fixed with the second limiting rod 301, and the surface of the second limiting rod 301 is slidably connected to the L-shaped strip 303 through a sliding hole. The valve cover 1 A connecting block 305 is fixed to the top of the 06. A spring 304 is fixed to the inner wall of the L-shaped strip 303. One end of the spring 304 is fixed to the connecting block 305. The outer wall of the connecting block 305 is slidably connected to the inner wall of the L-shaped strip 303. A moving part 306 is slidably connected to the top of the box 101. A rack 307 is fixed to the top of the moving part 306. A third rotating rod 309 is rotatably connected to one side of the box 101 via a bearing. The third rotating rod 309 is close to the rack. One end of 307 is fixed with a gear 308. The end of the third rotating rod 309 away from the gear 308 is fixed with a disc 310. The surface of the disc 310 is rotatably connected to a fourth rotating rod 311 via a bearing. The surface of the fourth rotating rod 311 is rotatably connected to a rotating bar 312 via a bearing. The side of the L-shaped bar 303 near the rotating bar 312 is rotatably connected to a fifth rotating rod 313 via a bearing. One end of the rotating bar 312 is rotatably connected to the fifth rotating rod 313 via a bearing. The surface of the second limiting rod 301 has five gear slots. The five gears are adjusted by controlling the rotation time of the motor 501. The motor 501 reverses for two seconds to open the valve cover 106. The motor reverses for three seconds to raise the gear by one level. The motor 501 reverses for four seconds to raise the gear by two levels. The motor 501 reverses for five seconds to raise the gear by three levels. The motor 501 reverses for six seconds to raise the gear by four levels. The motor 501 rotates for seven seconds to raise the gear to the highest level and contact the limiting block 302. Different gears correspond to different amounts of original liquid that need to be replenished.

[0056] In this embodiment of the invention, the feeding mechanism 4 includes a flow tank 401, a replenishment tank 402, a first connecting pipe 403, a first one-way valve 404, a second connecting pipe 405, a second one-way valve 406, a second connecting strip 407, and a piston 408. The flow tank 401 and the replenishment tank 402 are fixed sequentially on one side of the housing 101. The piston 408 is slidably connected to the inner wall of the flow tank 401. The bottom of the flow tank 401 is connected to the replenishment pipe through the first connecting pipe 403. The first one-way valve 404 is connected to one end of the first connecting pipe 403 near the flow tank 401. The flow tank 401 is connected to the storage tank 105 through the second connecting pipe 405. The top of the valve cover 106 is fixed with the second connecting strip 407, and one end of the second connecting strip 407 is fixed to the top of the piston 408.

[0057] Example 2

[0058] The technical difference between this embodiment and Embodiment 1 lies in the following: In this embodiment, the synchronous drive mechanism 5 includes a motor 501 and a screw 502. The motor 501 is fixed on the side of the housing 101 near the flow tank 401. The top of the housing 101 is rotatably connected to the screw 502 via a bearing. The moving part 306 is threadedly connected to the screw 502 via a threaded hole. The top of the moving part 306 pushes the rotating disk 202 via a pushing assembly 7. The pushing assembly 7 includes a first shaft pin 701, a first rotating plate 702, a second shaft pin 703, and a second rotating plate 704. The top of the moving part 306 is rotatably connected to the first shaft pin 701 via a bearing. The top of the first shaft pin 701 is fixed to the first rotating plate 702. The surface of the rotating disk 202 is open. A second shaft pin 703 is rotatably connected via a bearing. A second rotating plate 704 is fixed to the surface of the second shaft pin 703. One end of the first rotating plate 702 near the second rotating plate 704 is fixed to the second rotating plate 704. When the motor 501 rotates forward, it drives the screw 502 to rotate, causing the moving part 306 to move along the slide rail 6 towards the rotating disk 202. At the same time, the first rotating plate 702 pushes the second rotating plate 704 to push and drive the rotating disk 202 to clamp and limit its movement. When the drive motor 501 rotates in reverse, the motor 501 rotates and drives the screw 502 to rotate, causing the moving part 306 to move along the slide rail 6 towards the gear 308. At this time, the first rotating plate 702 pulls the second rotating plate 704, causing the second shaft pin 703 to pull the rotating disk 202 to release its limit. The motor is a three-phase asynchronous motor.

[0059] Example 3

[0060] This invention also provides a wet continuous spinning method for ultrafine nylon yarn, which employs the aforementioned wet spinning unit system for ultrafine nylon yarn. The wet continuous spinning method for ultrafine nylon yarn specifically includes the following steps:

[0061] S1. By reversing the synchronous drive mechanism 5 for two seconds, the push component 7 pushes the locking mechanism 2 and the valve cover 106 to release the limit and the opening and closing mechanism to open the valve cover 106.

[0062] S2. After the valve cover 106 is opened, observe the remaining material in the liquid storage tank 105. Then, according to how many seconds the synchronous drive mechanism 5 rotates, match the required liquid replenishment level and drive the opening and closing mechanism 3 to rise to that level.

[0063] S3. According to the required feeding level, the opening and closing mechanism drives the feeding mechanism 4 to draw the original liquid into the feeding mechanism 4.

[0064] S4. The synchronous drive mechanism 5 rotates forward for the same number of seconds as the required liquid replenishment level, driving the replenishment mechanism 4 to transport the original liquid to the storage tank 105 for replenishment.

[0065] The raw liquid in the storage tank 105 can be used for a period of time. When the raw liquid in the storage tank 105 is used up, the spinning can be continuously carried out. After the spun filament is cooled, it is wound up. When the raw liquid in the storage tank 105 is used up, the last filament spun out from the spinneret 108 is not broken. Then the storage tank 105 is replenished. After the replenishment is completed, the filament is wound up again, thus realizing uninterrupted spinning.

[0066] In step 1, the synchronous drive mechanism 5 reverses for two seconds, causing the push component 7 to push the locking mechanism 2 and the valve cover 106 to release the limit and cooperate with the opening and closing mechanism 3 to lift the valve cover 106. In step 2, after the valve cover 106 is opened, the remaining material in the storage tank 105 is observed. Then, the synchronous drive mechanism 5 reverses for four seconds and drives the opening and closing mechanism 3 to rise for four seconds to reach the desired position. In step 3, according to the required replenishment position, the opening and closing mechanism 3 rises for four seconds to drive the replenishment mechanism 4 to extract five liters of raw liquid and deliver it to the replenishment mechanism 4. In step 4, the synchronous drive mechanism 5 rotates forward for four seconds, driving the replenishment mechanism 4 to deliver five liters of extracted raw liquid to the storage tank 105 for replenishment.

[0067] When the valve cover needs to be locked and limited, the drive motor 501 rotates forward, driving the screw 502 to rotate. This causes the moving part 306 to slide forward along the slide rail 6, pushing the first rotating plate 702 to rotate. This causes the second rotating plate 704 to push the rotating disk 202 to slide along the arc groove 203. The rotation of the rotating disk 202 simultaneously drives the second rotating rod 206 to rotate, causing the first connecting bar 207 to push the first rotating rod 204 to rotate, thereby clamping and locking the valve cover 106. The drive motor 501 rotates in reverse, driving the screw 502 to rotate. This causes the moving part 306 to move backward along the slide rail 6, pulling the first rotating plate 702 and simultaneously pulling the rotating disk 202 to slide along the arc groove 203. The rotation of the rotating disk 202 simultaneously pulls the second rotating rod 206 to rotate, causing the first connecting bar 207 to pull the first rotating rod 204 to rotate, thereby releasing the clamping plate 205 from the valve cover 106.

[0068] When the valve cover needs to be opened or closed, the drive motor 501 reverses, causing the clamping plate 205 to release from the valve cover 106. The moving part 306 then moves the rack 307 towards the gear 308. When the rack 307 meshes with the gear 308, the rack 307 drives the gear 308 to rotate forward, causing the third rotating rod 309 to rotate, which in turn drives the disc 310 to rotate, simultaneously driving the fourth rotating rod 311 to rotate. This causes the rotating bar 312 to rotate, pushing against the L-shaped bar 303 and sliding upwards along the outer wall of the second limiting rod 301. As the L-shaped bar 303 slides upwards, the spring 304 stretches, causing the connecting block 305 to slide along with it, thus realizing the valve... When the cover 106 is opened, and when the cover 106 needs to be closed, the moving part 306 moves the rack 307 toward the rotating disk 202. After the rack 307 meshes with the gear 308, the rack 307 moves the gear 308 in reverse, causing the third rotating rod 309 to rotate, which in turn drives the disk 310 to rotate, and at the same time drives the fourth rotating rod, causing the rotating bar 312 to rotate and pull the L-shaped bar 303 to slide downward along the outer wall of the second limiting rod 301. As the L-shaped bar 303 slides downward, the spring 304 contracts and squeezes the connecting block 305, thereby closing the cover 106 while applying downward pressure to increase the sealing of the cover 106.

[0069] When replenishment is needed, the drive motor 501 reverses for four seconds, causing the opening and closing mechanism 3 to rise and open the valve cover 106. This opens the valve cover 106, which in turn causes the second connecting bar 407 to pull the piston 408 upward. At this time, the first one-way valve 404 opens, drawing five liters of raw liquid from the replenishment tank 402 and flowing through the first connecting pipe 403 into the flow tank 401. The second one-way valve 406 is closed. When the required amount of raw liquid is drawn, the drive motor 501 rotates forward for four seconds to close the valve cover 106. The valve cover 106 descends, causing the second connecting bar 407 to press the piston 408 downward. At this time, the first one-way valve 404 closes, and as the piston 408 presses downward, the second one-way valve 406 opens, pressing the raw liquid from the flow tank 401 into the second connecting pipe 405 and flowing into the storage tank 105. This allows for replenishment according to the required amount.

[0070] Furthermore, any content not described in detail in this specification is existing technology known to those skilled in the art.

[0071] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0072] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A wet spinning unit system for ultrafine nylon yarn, comprising a forming unit, wherein the dope is extruded from the spinneret of the forming unit to form a fine stream, and then the fine stream is solidified into nascent fibers by cooling, and then the solidified nascent fibers are wound up by a winding unit or directly subjected to post-processing, characterized in that: The forming unit includes: Support frame (1); The housing (101) is fixed to the surface of the support frame (1); Ventilation holes (102) are provided on the outside of the housing (101); The door (103) is hinged to one side of the box body (101); A protective cover (104) is installed on the surface of the housing (101); The liquid storage tank (105) is fixed to the inner wall of the box body (101); The valve cover (106) is slidably connected to the surface of the liquid storage tank (105); Water tank (107) is fixed to the surface of the support frame (1); The spinneret (108) is located on the side of the housing (101) near the water tank (107); A locking mechanism (2) is installed on the surface of the housing (101) for locking the valve cover (106). An opening and closing mechanism (3) is installed on the surface of the housing (101) for opening and closing the valve cover (106). A feeding mechanism (4) is installed on one side of the housing (101) and is used to feed the liquid storage tank (105) while opening and closing the valve cover (106); The synchronous drive mechanism (5) is installed on one side of the housing (101) located on the feeding mechanism (4); The locking mechanism (2) includes a first limiting rod (201), a rotating disk (202), an arc groove (203), a first rotating rod (204), a clamping piece (205), a second rotating rod (206), and a first connecting strip (207). The first limiting rod (201) is fixed at equal intervals on the top of the housing (101). The rotating disk (202) is rotatably connected to the surface of the housing (101) via a bearing. The surface of the rotating disk (202) is provided with arc grooves (203) at equal intervals. The inner wall of the arc groove (203) is connected to the first limiting rod (201). The outer wall of the box (101) is slidably connected, and the top of the box (101) is rotatably connected to the first rotating rod (204) by bearings at equal intervals. The surface of the first rotating rod (204) is fixed with a clamping piece (205). The surface of the rotating disk (202) is rotatably connected to the second rotating rod (206) by bearings at equal intervals. The surface of the second rotating rod (206) is fixed with a first connecting strip (207). One end of the first connecting strip (207) is fixed to the top of the clamping piece (205). The bottom of the clamping piece (205) is pressed against the surface of the valve cover (106). The opening and closing mechanism (3) includes a second limiting rod (301), a limiting block (302), an L-shaped strip (303), a spring (304), a connecting block (305), a moving part (306), a rack (307), a gear (308), a third rotating rod (309), a disc (310), a fourth rotating rod (311), a rotating bar (312), and a fifth rotating rod (313). The top of the housing (101) is fixed with the second limiting rod (301). The surface of the second limiting rod (301) is slidably connected to the L-shaped strip (303) through a sliding hole. The top of the valve cover (106) is fixed with the connecting block (305). The inner wall of the L-shaped strip (303) is fixed with the spring (304). One end of the spring (304) is fixed to the connecting block (305). The outer wall of the connecting block (305) is slidably connected to the inner wall of the L-shaped strip (303). Next, a movable part (306) is slidably connected to the top of the box (101), and a rack (307) is fixed to the top of the movable part (306). A third rotating rod (309) is rotatably connected to one side of the box (101) through a bearing. A gear (308) is fixed to the end of the third rotating rod (309) near the rack (307). A disc (310) is fixed to the end of the third rotating rod (309) away from the gear (308). A fourth rotating rod (311) is rotatably connected to the surface of the disc (310) through a bearing. A rotating bar (312) is rotatably connected to the surface of the fourth rotating rod (311) through a bearing. A fifth rotating rod (313) is rotatably connected to the side of the L-shaped bar (303) near the rotating bar (312) through a bearing. One end of the rotating bar (312) is rotatably connected to the fifth rotating rod (313) through a bearing.

2. The wet spinning unit system for ultrafine nylon yarn according to claim 1, characterized in that, The feeding mechanism (4) includes a flow tank (401), a replenishment tank (402), a first connecting pipe (403), a first one-way valve (404), a second connecting pipe (405), a second one-way valve (406), a second connecting strip (407), and a piston (408). The flow tank (401) and the replenishment tank (402) are fixed in sequence on one side of the housing (101). The piston (408) is slidably connected to the inner wall of the flow tank (401). The bottom of the flow tank (401) and the replenishment pipe are connected through the first connecting pipe (403). The first one-way valve (404) is connected to one end of the first connecting pipe (403) near the flow tank (401). The flow tank (401) is connected to the storage tank (105) through the second connecting pipe (405). The top of the valve cover (106) is fixed with the second connecting strip (407). One end of the second connecting strip (407) is fixed to the top of the piston (408).

3. The wet spinning unit system for ultrafine nylon yarn according to claim 2, characterized in that, The synchronous drive mechanism (5) includes a motor (501) and a screw (502). The motor (501) is fixed on the side of the housing (101) near the flow tank (401). The screw (502) is rotatably connected to the top of the housing (101) through a bearing. The moving part (306) is threadedly connected to the screw (502) through a threaded hole.

4. The wet spinning unit system for ultrafine nylon yarn according to claim 3, characterized in that, The top of the housing (101) is symmetrically fixed with a slide rail (6) on one side of the screw (502), and the bottom of the moving part (306) is provided with a slide groove (601). The moving part (306) is slidably connected to the outer wall of the slide rail (6) through the slide groove (601).

5. The wet spinning unit system for ultrafine nylon yarn according to claim 1, characterized in that, The top of the moving part (306) pushes the rotating disk (202) via the pushing component (7).

6. The wet spinning unit system for ultrafine nylon yarn according to claim 5, characterized in that, The pushing assembly (7) includes a first shaft pin (701), a first rotating plate (702), a second shaft pin (703), and a second rotating plate (704). The top of the moving part (306) is rotatably connected to the first shaft pin (701) via a bearing. The top of the first shaft pin (701) is fixed with the first rotating plate (702). The surface of the rotating disk (202) is rotatably connected to the second shaft pin (703) via a bearing. The surface of the second shaft pin (703) is fixed with the second rotating plate (704). The end of the first rotating plate (702) near the second rotating plate (704) is fixed to the second rotating plate (704).

7. A wet continuous spinning method for ultrafine nylon yarn, characterized in that, To employ the wet spinning unit system for ultrafine nylon yarn as described in any one of claims 1 to 6, the wet uninterrupted spinning method for ultrafine nylon yarn specifically includes the following steps: S1. By reversing the synchronous drive mechanism (5) for a certain period of time, the push component (7) pushes the locking mechanism (2) and the valve cover (106) to release the limit and cooperate with the opening and closing mechanism (3) to lift the valve cover (106) and open the valve cover (106); S2. After the valve cover (106) is opened, observe the remaining material in the storage tank (105). Then, according to how many seconds the synchronous drive mechanism (5) rotates, match the required liquid replenishment level and drive the opening and closing mechanism (3) to rise to that level. S3. According to the required feeding level, the opening and closing mechanism (3) drives the feeding mechanism (4) to draw the original liquid into the feeding mechanism (4) by rising. S4. Drive the synchronous drive mechanism (5) to rotate forward for the same number of seconds as the required liquid replenishment level, and drive the replenishment mechanism (4) to transport the original liquid to the storage tank (105) for replenishment. The raw liquid in the storage tank (105) can be used for a period of time. Before the raw liquid in the storage tank (105) is used up, it can be continuously spun. The spun filaments are cooled and then wound up. When the raw liquid in the storage tank (105) is used up, the last filament spun from the spinneret (108) is not broken. Then the storage tank (105) is replenished. After the replenishment is completed, the filaments are wound up again, thus achieving uninterrupted spinning.

8. The wet continuous spinning method for ultrafine nylon yarn according to claim 7, characterized in that, In step 1, the synchronous drive mechanism (5) is reversed for two seconds, causing the push component (7) to push the locking mechanism (2) and the valve cover (106) to release the limit and cooperate with the opening and closing mechanism (3) to open the valve cover (106); in step 2, after the valve cover (106) is opened, the remaining material in the storage tank (105) is observed, and then the synchronous drive mechanism (5) is reversed for four seconds and the opening and closing mechanism (3) is driven to rise for four seconds to reach the gear position; in step 3, according to the gear position to be replenished, the opening and closing mechanism (3) is driven to rise for four seconds to drive the replenishing mechanism (4) to extract five liters of raw liquid and transport it to the replenishing mechanism (4); in step 4, the synchronous drive mechanism (5) is driven to rotate forward for four seconds to drive the replenishing mechanism (4) to transport five liters of raw liquid to the storage tank (105) for replenishment.

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