Tubular aramid fiber spinning nozzle assembly

Abstract

The invention relates to a shell and tube type aramid fiber spinning nozzle assembly, belongs to the technical field of chemical fiber spinning, and solves the problem that an existing spinning nozzle assembly is inconvenient to assemble, disassemble and clean in the prior art. The tubular aramid fiber spinning nozzle assembly comprises a main pipe, a plurality of branch pipes and a plurality of connecting pipes, first pipe caps are arranged at the two ends of the main pipe and detachably connected with the main pipe, the upper ends of the branch pipes are communicated with the main pipe, second pipe caps are arranged at the lower ends of the branch pipes, and the first pipe caps are detachably connected with the main pipe. The second pipe cap is detachably connected with the branch pipe, one end of the connecting pipe is communicated with the branch pipe, and a spinneret plate is arranged at the other end of the connecting pipe. The detachable first pipe caps are arranged at the two ends of the main pipe, and the detachable second pipe caps are arranged at the lower ends of the branch pipes, so that the inner walls of the main pipe and the branch pipes are convenient to clean; gaps are formed between the adjacent branch pipes and between the small spinneret plates on the adjacent branch pipes, and precipitation liquid can be evenly distributed on the periphery of each small spinneret plate, so that curing conditions of nascent fibers extruded by the small spinneret plates are consistent.

Description

[0001] This application claims the priority of the prior application 202510004218.2 filed on January 2, 2025. Technical Field

[0002] The present invention relates to the technical field of chemical fiber textile, and particularly relates to a tubular aramid spinneret assembly. Background Art

[0003] For large cap-shaped spinnerets, tile-shaped spinnerets, and spherical spinnerets, the number of micropores on the spinneret reaches tens of thousands. Although the micropores are partitioned to provide some channels for the precipitation liquid to diffuse from the peripheral environment to the central region, the number of micropores in each region reaches several thousand. Obviously, there are differences in curing conditions between the nascent fibers in the inner circle and the outer circle. Moreover, these three types of spinneret plates have large surface diameters, a large number of holes, and high individual values, resulting in high replacement costs when individual micropores are damaged or the mirror surface is scratched.

[0004] For the planar combined spinneret assembly, there is enough clearance between individual small combined spinneret plates, significantly improving the renewal of the precipitation liquid and two-way mass exchange. For the annular combined spinneret assembly, the uniformity of curing conditions between the nascent fibers near the outer and inner parts is significantly improved. However, in both cases, individual small spinneret plates are sealed with the flower plate (substrate) through a tight fit, making the operations of installation, disassembly, cleaning, and replacement cumbersome. Summary of the Invention

[0005] In view of the above analysis, embodiments of the present invention aim to provide a tubular aramid spinneret assembly to solve the problem of inconvenient installation, disassembly, and cleaning of existing spinneret assemblies.

[0006] The present invention provides a tubular aramid spinneret assembly, including a main pipe, a plurality of branch pipes, and a plurality of connecting pipes. First pipe caps are provided at both ends of the main pipe, and the first pipe caps are detachably connected to the main pipe. The upper ends of the branch pipes are communicated with the main pipe, second pipe caps are provided at the lower ends of the branch pipes, and the second pipe caps are detachably connected to the branch pipes. One end of the connecting pipe is communicated with the branch pipe, and a spinneret plate is provided at the other end.

[0007] Further, a plurality of the connecting pipes are provided on each of the branch pipes.

[0008] Further, at least 4 of the connecting pipes are provided on each of the branch pipes.

[0009] Further, the plurality of branch pipes are arranged in parallel, and the plurality of connecting pipes are arranged in parallel.

[0010] Further, the branch pipes are vertically connected to the main pipe, and the connecting pipes are vertically connected to the branch pipes.

[0011] Furthermore, a liquid inlet pipe is also provided in the middle of the main pipe, and the liquid inlet pipe is vertically connected to the main pipe.

[0012] Furthermore, there is a gap between adjacent branch pipes, and there is a void between adjacent spinnerets.

[0013] Furthermore, the micropores of the spinneret are partitioned.

[0014] Furthermore, the concentration of the spinning solution of the tubular aramid spinneret assembly is 40 - 65%, and the spinning speed of the spinneret is 5 - 20 m / min.

[0015] Furthermore, the first pipe cap is threadedly connected to the main pipe, and the second pipe cap is threadedly connected to the branch pipe.

[0016] The present invention also provides an aramid spinning and curing assembly, comprising: at least one set of tubular aramid spinneret assemblies and at least one set of spinning and curing channel assemblies.

[0017] Compared with the prior art, the present invention can at least achieve one of the following beneficial effects:

[0018] (1) The present invention includes a main pipe, a plurality of branch pipes and a plurality of connecting pipes. The plurality of branch pipes are arranged in parallel, the plurality of connecting pipes are arranged in parallel. The upper ends of the branch pipes are communicated with the main pipe. First pipe caps are provided at both ends of the main pipe, and second pipe caps are provided at the lower ends of the branch pipes. A plurality of connecting pipes are provided on each branch pipe. One end of the connecting pipe is communicated with the branch pipe, and the other end is provided with a spinneret. The first pipe cap is detachably connected to the main pipe, and the second pipe cap is detachably connected to the branch pipe, which is convenient for cleaning the inner walls of the main pipe and the branch pipes.

[0019] (2) There are voids between adjacent branch pipes and between adjacent small spinnerets on the branch pipes of the present invention. The precipitation liquid can flow along the precipitation liquid flow from the rear of the assembly and be evenly distributed around each small spinneret, so that the curing conditions of the nascent fibers extruded from each small spinneret are the same; the micropores on each small spinneret are processed in a distributed manner, and there are channels between regions, which can improve the curing environment of the single fibers in the fiber bundle extruded from the small spinneret and make it basically the same.

[0020] In the present invention, the above technical solutions can also be combined with each other to achieve more preferred combination schemes. Other features and advantages of the present invention will be described in the following description, and some advantages can be made obvious from the description, or can be understood by implementing the present invention. The objectives and other advantages of the present invention can be realized and obtained through the content specifically pointed out in the description and the drawings. Description of the Drawings

[0021] The accompanying drawings are only for the purpose of showing specific embodiments and are not considered to be a limitation of the present invention. Throughout the drawings, the same reference signs denote the same components.

[0022] Figure 1 One of the schematic structural diagrams of the tubular aramid spinneret assembly for Specific Embodiment 1;

[0023] Figure 2 Another schematic structural diagram of the tubular aramid spinneret assembly for Specific Embodiment 1;

[0024] Figure 3 Schematic structural diagram of the connection structure of the main pipe, branch pipes and connecting pipes for Specific Embodiment 1;

[0025] Figure 4 Schematic diagram of the micropore distribution on the spinneret plate for Specific Embodiment 1;

[0026] Figure 5 Schematic structural diagram of the spinning and curing flow channel assembly for Specific Embodiment 2 under laminar flow state;

[0027] Figure 6 Top view schematic diagram of the spinning and curing flow channel assembly for Specific Embodiment 2 under laminar flow state;

[0028] Figure 7 Schematic structural diagram of the spinning and curing flow channel assembly for Specific Embodiment 2 under turbulent flow state;

[0029] Figure 8 Top view schematic diagram of the spinning and curing flow channel assembly for Specific Embodiment 2 under turbulent flow state;

[0030] Figure 9 Schematic structural diagram of the curing flow channel groove of the spinning and curing flow channel assembly for Specific Embodiment 2;

[0031] Figure 10 Partial enlarged view of the curing flow channel groove of the spinning and curing flow channel assembly for Specific Embodiment 2;

[0032] Figure 11 Schematic structural diagram of the adjustment structure of the spinning and curing flow channel assembly for Specific Embodiment 2;

[0033] Figure 12 Schematic structural diagram of the sliding bridge structure of the spinning and curing flow channel assembly for Specific Embodiment 2;

[0034] Figure 13 Partial enlarged view of the sliding bridge structure of the spinning and curing flow channel assembly for Specific Embodiment 2;

[0035] Figure 14 Schematic diagram of the mating state of the sliding bridge structure and the flow channel groove partition of the spinning and curing flow channel assembly for Specific Embodiment 2;

[0036] Figure 15 Schematic diagram of the principle for adjusting the shape of the baffle plate of the spinning and curing runner assembly in Specific Embodiment 2;

[0037] Figure 16 Schematic diagram of the mating state of the spinning and curing runner assembly in Specific Embodiment 2 and the tube - type aramid spinneret assembly.

[0038] Reference signs:

[0039] 1 - main pipe; 11 - first pipe cap; 12 - liquid inlet pipe;

[0040] 2 - branch pipe; 21 - second pipe cap;

[0041] 3 - connecting pipe; 31 - spinneret plate;

[0042] 4 - curing runner groove; 41 - runner groove housing; 42 - runner groove partition; 43 - through - hole; 44 - positioning spoke; 45 - strip - shaped slideway hole; 46 - pull rod through - hole;

[0043] 5 - flow state conversion structure; 51 - baffle plate; 52 - sliding pull rod; 53 - sliding spoke; 54 - connecting column;

[0044] 6 - adjusting structure; 61 - pull rod connecting plate; 62 - adjusting screw; 63 - adjusting sleeve; 64 - adjusting handle. Detailed implementation manners

[0045] The following will specifically describe the preferred embodiments of the present invention with reference to the accompanying drawings, in which the accompanying drawings form a part of the present invention and are used together with the embodiments of the present invention to explain the principle of the present invention, and are not used to limit the scope of the present invention.

[0046] A specific embodiment of the present invention, as Figure 1 [[ID=X]]、 Figure 2 and Figure 3 shown, discloses a tube - type aramid spinneret assembly, including a main pipe 1, a plurality of branch pipes 2 and a plurality of connecting pipes 3. The plurality of branch pipes 2 are arranged in parallel, the plurality of connecting pipes 3 are arranged in parallel. The two ends of the main pipe 1 are provided with first pipe caps 11. The upper ends of the branch pipes 2 are communicated with the main pipe 1. The lower ends of the branch pipes 2 are provided with second pipe caps 21. Each branch pipe 2 is provided with a plurality of connecting pipes 3. One end of the connecting pipe 3 is communicated with the branch pipe 2, and the other end is provided with a spinneret plate 31. The first pipe cap 11 is detachably connected to the main pipe 1, such as by threaded connection. The second pipe cap 21 is detachably connected to the branch pipe 2, such as by threaded connection.

[0047] Compared with the prior art, in the tube - type aramid spinneret assembly provided in this embodiment, a plurality of branch pipes 2 are arranged in a column below the main pipe 1. First pipe caps 11 detachably connected to the two ends of the main pipe 1 are provided to facilitate cleaning the inner wall of the main pipe 1; second pipe caps 21 detachably connected to the ends of the branch pipes 2 are provided to facilitate opening and cleaning the inner wall of the branch pipes 2.

[0048] Preferably, as Figure 1 , Figure 2 and Figure 3 shown, the branch pipe 2 is perpendicularly connected to the main pipe 1, and the connecting pipe 3 is perpendicularly connected to the branch pipe 2. Exemplarily, the branch pipe 2 is fixedly welded to the main pipe 1, and the connecting pipe 3 and the branch pipe 2 are fixedly welded.

[0049] Preferably, as Figure 1 , Figure 2 and Figure 3 shown, there are 4 branch pipes 2, and at least 4 connecting pipes 3 are provided on each branch pipe 2.

[0050] The number of holes in each spinneret plate 31 (small spinneret plate) can be thousands of micro - holes according to actual needs, and the micro - holes of each spinneret plate 31 are distributed in zones.

[0051] Considering the flow of the precipitation liquid, as Figure 1 , Figure 2 and Figure 3 shown, a liquid inlet pipe 12 is further provided in the middle of the main pipe 1. The liquid inlet pipe 12 and the branch pipes 2 are respectively arranged on both sides of the main pipe 1. The liquid inlet pipe 12 is perpendicularly connected to the main pipe 1. Exemplarily, the liquid inlet pipe 12 is fixedly welded to the main pipe 1.

[0052] In this embodiment, there are gaps between adjacent branch pipes 2 and between each spinneret plate 31 on adjacent branch pipes 2. The precipitation liquid can flow along the precipitation liquid flow from the rear of the assembly and be evenly distributed around each spinneret plate 31, so that the curing conditions of the nascent fibers extruded from each spinneret plate 3 are the same. The micro - holes on each spinneret plate 31 are processed in a distributed manner, and there are channels between zones, similar to the above - mentioned spherical spinneret plate. In this way, the curing environment of the single fibers in the fiber bundle extruded from the small spinneret plate can be improved, making the curing environment basically the same.

[0053] As Figure 4 shown, the zoning principle of the micro - hole structure on the spinneret plate 31 is: the micro - hole structure is circumferentially divided into at least 4 fan - shaped zones, and multiple rows of concentric arc - shaped zones are arranged with the center of the spinneret plate 31 as the center in each fan - shaped zone. 1 - 2 rows of equally - spaced micro - holes are arranged in each arc - shaped zone; Figure 4 The number of arc - shaped zones, the number of micro - holes, and the micro - hole size shown are only schematic structures and do not represent the actual structure parameters.

[0054] Preferably, the channel gap between two adjacent sector partitions is not less than twice the diameter of the micropores. The channel gap between two adjacent arc partitions is not less than the diameter of the micropores.

[0055] Furthermore, the concentration of the spinning solution for the tubular aramid spinneret assembly is 40 - 65%, the spinning speed of the spinneret plate 31 is 5 - 20 m / min, and the denier of the single fiber of the formed product is 1.5 - 10 dtex.

[0056] The tubular aramid spinneret assembly of this embodiment is pressure-resistant, not easily deformed, has a small cavitation area, more stable curing conditions for the inner and outer layers of the fiber bundle, uniform curing of the nascent fiber, and stable performance of the fiber product compared to the spinneret plate with a relatively large surface diameter; compared to the combined shape with a relatively small surface diameter, it is convenient for disassembly and cleaning, has a low maintenance cost, and low loss.

[0057] There are gaps between adjacent branch pipes 2 of the present invention, and also between the spinneret plates 31 on adjacent branch pipes 2. The precipitation liquid can flow along the axis direction of the connecting pipe 3 from the rear of the assembly, and the precipitation liquid flow is evenly distributed around each small spinneret plate, so that the curing conditions of the nascent fibers extruded from each spinneret plate 31 are consistent; it avoids the error in the curing temperature and precipitation liquid concentration between the outer and inner spinnerets due to the too large size of the spinneret plate, maintains the consistency of the fiber bundle curing conditions, and further avoids the problem of inconsistent curing effects of the fiber bundle due to the changes in the temperature and concentration of the precipitation liquid.

[0058] In this embodiment, the micropores on each spinneret plate 31 are processed in partitions, and there are channels between the partitions. The precipitation liquid can flow into the middle of the spinneret plate 31 through the channels (gaps) between adjacent partitions, so as to ensure that the fiber bundles ejected from the micropores in the middle of the spinneret plate 31 can have the same curing conditions as the fiber bundles ejected from the micropores at the edge of the spinneret plate 31; this can improve the curing environment of the single fibers in the fiber bundle extruded from the small spinneret plate and make it basically consistent.

[0059] Embodiment 2

[0060] A specific embodiment of the present invention provides an aramid spinning and curing assembly based on the tubular aramid spinneret assembly of Embodiment 1.

[0061] In this embodiment, the aramid spinning and curing assembly includes: at least one set of the tubular aramid spinneret assembly of Embodiment 1 and at least one set of spinning and curing channel assemblies.

[0062] In this embodiment, when multiple sets of tubular aramid spinneret assemblies are provided, an internal-threaded sleeve can be used to combine two adjacent sets of tubular aramid spinneret assemblies. Specifically, internal-threaded holes are provided at both ends of the internal-threaded sleeve. Further, the first pipe caps 11 at the ends of the main pipes 1 of two adjacent sets of tubular aramid spinneret assemblies are unscrewed, and then the external threads at the ends of the main pipes 1 can be threadedly connected to the internal-threaded holes at the ends of the internal-threaded sleeve, realizing the modular combination of multiple sets of tubular aramid spinneret assemblies.

[0063] As Figure 5 , Figure 6 , Figure 7 , Figure 8 shown, the spinning and curing flow channel assembly includes: a curing flow channel groove 4, a flow state conversion structure 5, and an adjustment structure 6. The curing flow channel groove 4 is an overall strip-shaped groove for flowing the fiber precipitation liquid. The flow channels inside the curing flow channel groove 4 are separated into multiple parallel flow channels arranged in parallel, and a flow state conversion structure 5 is installed on each of the multiple parallel flow channels. The adjustment structure 6 is used to adjust the structural form of the flow state conversion structure 5.

[0064] Further, liquid inlet conduits and liquid outlet conduits communicating with the internal cavity are respectively provided at both ends of the curing flow channel groove 4, and the precipitation liquid is pumped out from one end of the curing flow channel groove 4 through a circulation pump, and after being filtered, temperature-adjusted and other treatments, it is sent back into the groove from the other end, forming a precipitation liquid circulation system. Preferably, the number of liquid inlet conduits and liquid outlet conduits is set in multiple groups corresponding to the number of parallel flow channels to supply the precipitation liquid to the multiple parallel flow channels respectively; or, a liquid inlet chamber and a liquid outlet chamber are provided at both ends of the curing flow channel groove 4 and are respectively communicated with the liquid inlet conduits and the liquid outlet conduits, and openings are provided at both ends of the multiple parallel flow channels to be respectively communicated with the liquid inlet chamber and the liquid outlet chamber, realizing the supply of the precipitation liquid to the multiple parallel flow channels.

[0065] In this embodiment, by adjusting the structural form of the flow state conversion structure 5, the structural form of the multiple parallel flow channels and the flow state of the precipitation liquid inside the multiple parallel flow channels can be changed; the shape adjustment of the parallel flow channels can be realized through the shape change of the flow state conversion structure 5, and further the adjustment of the flow velocity of the precipitation liquid and the flow state of the precipitation liquid can be realized, so that the precipitation liquid can uniformly fix the fiber filaments ejected by multiple sets of spinnerets 31 and promote the contact between the precipitation liquid and the fiber filaments; in this embodiment, by adjusting the flow velocity of the precipitation liquid and the flow state of the precipitation liquid to adapt to different production requirements.

[0066] During implementation, as Figure 16As shown, a plurality of branch pipes 2 of the tubular aramid spinneret assembly are in one-to-one correspondence with a plurality of parallel flow channels separated by the flow channel partition plate 42 of the spinning and curing flow channel assembly; specifically, the fiber bundles ejected from the plurality of spinnerets 31 on the first branch pipe 2 are cured by the precipitation liquid in the first parallel flow channel, and the fiber bundles ejected from the plurality of spinnerets 31 on the second branch pipe 2 are cured by the precipitation liquid in the second parallel flow channel, and so on; the plurality of branch pipes 2 respectively extend into the plurality of parallel flow channels for spinning and curing; so that the plurality of connecting pipes 3 on the same branch pipe 2 are located in the same parallel flow channel; furthermore, the plurality of spinnerets 31 on the same branch pipe 2 are all immersed in the precipitation liquid of the same parallel flow channel for curing, and the plurality of spinnerets 31 on the same branch pipe 2 are spaced apart in the height direction of the parallel flow channel.

[0067] Preferably, a flow meter is provided in each of the plurality of parallel flow channels for monitoring the flow rate of the precipitation liquid in each parallel flow channel.

[0068] In this embodiment, as Figure 9 , Figure 10 shown, the curing flow channel tank 4 includes: a flow channel tank housing 41 and a flow channel partition plate 42; a plurality of the flow channel partition plates 42 are arranged in parallel along the width direction of the flow channel tank housing 41, and the plurality of flow channel partition plates 42 divide the internal cavity of the flow channel tank housing 41 into a plurality of parallel flow channels.

[0069] Furthermore, a plurality of positioning spokes 44 are arranged at equal intervals on the flow channel partition plate 42, and the positioning spokes 44 are symmetrically arranged on both sides of the flow channel partition plate 42, as Figure 9 , Figure 10 shown.

[0070] In this embodiment, as Figure 7 , Figure 8 , Figure 12 shown, the flow state conversion structure 5 includes: a baffle plate 51 and a sliding bridge structure; the sliding bridge structure is slidably installed on the flow channel partition plate 42; one end of the baffle plate 51 is connected to the positioning spoke 44, and the other end is connected to the sliding bridge structure; furthermore, by the relative sliding of the sliding bridge structure and the flow channel partition plate 42, the bending arc of the baffle plate 51 can be adjusted.

[0071] Preferably, the baffle plate 51 is made of an elastic material capable of bending deformation; or, the baffle plate 51 is made of a thin metal plate capable of bending deformation.

[0072] In this embodiment, as Figure 12 , Figure 13As shown, the sliding bridge structure includes: a sliding pull rod 52, sliding spokes 53, and a connecting column 54; a plurality of the sliding spokes 53 are arranged at equal intervals on the sliding pull rod 52; two sliding pull rods 52 are arranged in parallel, and at least one connecting column 54 is used to connect two opposite sliding spokes 53 on the two sliding pull rods 52.

[0073] Further, a pull rod through hole 46 for allowing the sliding pull rod 52 to pass through is provided on the positioning spoke 44; a through hole 43 for allowing the sliding pull rod 52 to pass through is opened on one end side plate of the runner groove housing 41. <http: / / www.patentguru.com / CN108873083A /

[0074] Correspondingly, as Figure 7 , Figure 8 , Figure 14 , Figure 15 shown, the sliding pull rod 52 is slidably installed in the pull rod through holes 46 of a plurality of positioning spokes 44, and the end portion passes through the through hole 43 to penetrate the curing runner groove 4. Further, the two sliding pull rods 52 are respectively slidably installed on the positioning spokes 44 on both sides of the same runner groove partition 42.

[0075] Further, a strip-shaped slideway hole 45 is further provided on the positioning spoke 44; the extending direction of the strip-shaped slideway hole 45 is parallel to the length direction of the runner groove partition 42; and, the connecting column 54 passes through the strip-shaped slideway hole 45 to connect the two sliding spokes 53 and can slide along the strip-shaped slideway hole 45.

[0076] In this embodiment, one end of the baffle 51 is connected to the positioning spoke 44, and the other end is connected to the sliding spoke 53; and, the baffle 51 is located outside the sliding pull rod 52. As Figure 14 , Figure 15 shown, when the sliding pull rod 52 slides relative to the positioning spoke 44, the sliding spoke 53 approaches or moves away from the positioning spoke 44. Furthermore, the sliding spoke 53 can drive the baffle 51 to be linear or bent, and the bending radian of the baffle 51 can be adjusted.

[0077] Specifically, the connection manner of the baffle 51 with the positioning spoke 44 and the sliding spoke 53 is a fixed connection or a hinged connection.

[0078] As Figure 5 , Figure 6 , Figure 7 , Figure 8As shown, when the baffle 51 is linear, the flow channels between two adjacent flow channel partitions 42 are linear. At this time, the multiple parallel flow channels inside the solidification flow channel 4 are linear flow channels, and the precipitating liquid is in a laminar flow state within the parallel flow channels. When the baffle 51 is deformed into a curved shape driven by the sliding spokes 53, the flow channels between two adjacent flow channel partitions 42 are curved flow channels with gradually decreasing and then expanding cross-sections. At this time, the precipitating liquid is in a turbulent flow state within the multiple parallel flow channels inside the solidification flow channel 4.

[0079] During implementation, the precipitating liquid in a turbulent flow state can provide a certain degree of turbulent impact on the ejected fiber bundle on the side in the ejection direction of the spinneret 31, promoting the contact and relative flow between the precipitating liquid and multiple fine fiber filaments. Moreover, by adjusting the bending degree of the baffle 51, it is possible to adjust the maximum flow velocity of the precipitating liquid (the narrowest part where the parallel flow channels gradually narrow) without changing the supply velocity of the precipitating liquid, so as to adapt to the spinning and solidification environment required for different spinning needs.

[0080] In this embodiment, by adjusting the bending curvature of the baffle 51, it is possible to adjust the degree of gradual reduction and expansion of the multiple parallel flow channels inside the solidification flow channel 4, and further adjust the turbulence degree of the precipitating liquid, so that the precipitating liquid in a turbulent flow state can more easily enter the center of the spinneret 31 through the partition channels on the spinneret 31 and contact the micro-holes processed in partitions on the spinneret 31, maintaining the consistency of the solidification state of the fiber bundle.

[0081] Furthermore, in order to adjust the bending curvature of the baffle 51, it is necessary to adjust the mating position of the sliding bridge structure on the flow channel partition 42. In this embodiment, an adjustment structure 6 is provided to adjust the position of the sliding bridge structure on the flow channel partition 42.

[0082] In a specific implementation manner of the present invention, as Figure 11 shown, the adjustment structure 6 includes: a pull rod connecting plate 61, an adjustment screw 62, an adjustment sleeve 63, and an adjustment handle 64.

[0083] Specifically, the pull rod connecting plate 61 is arranged parallel to the end side plate of the flow channel housing 41; one end of the sliding pull rod 52 extending out of the flow channel housing 41 is fixedly connected to the pull rod connecting plate 61; furthermore, by adjusting the distance between the pull rod connecting plate 61 and the flow channel housing 41, the position of the sliding bridge structure on the flow channel partition 42 can be adjusted.

[0084] Furthermore, the adjustment sleeve 63 is fixedly installed on the end side plate of the flow channel housing 41; specifically, two adjustment sleeves 63 are symmetrically arranged on the end side plate of the flow channel housing 41.

[0085] Further, the adjusting screw 62 is arranged perpendicular to the pull rod connecting plate 61, and is screwed with the pull rod connecting plate 61 by threads or forms a ball screw pair with the pull rod connecting plate 61 through a ball nut; one end of the adjusting screw 62 is rotatably connected to the adjusting sleeve 63 through a bearing, and the other end passes through the pull rod connecting plate 61 and is fixedly connected to the adjusting handle 64. Preferably, two adjusting screws 62 are symmetrically arranged.

[0086] During implementation, by rotating the adjusting handle 64, the adjusting screw 62 rotates. When the adjusting screw 62 rotates, it can drive the pull rod connecting plate 61 to approach or move away from the side plate of the runner groove housing 41, and further drive the sliding bridge structure to displace to adjust the shape of the baffle plate 51.

[0087] In this embodiment, in order to facilitate the provision of rotational torque, the adjusting handle 64 is a T-shaped handle, or the adjusting handle 64 is a regular hexagonal prism structure; when the adjusting handle 64 is a T-shaped handle, the end of the T-shaped rod is the lever arm length of the torque; when the adjusting handle 64 is a regular hexagonal prism structure, a wrench can be sleeved outside it to drive its rotation.

[0088] The above is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any changes or substitutions that can be easily thought of by those skilled in the art within the technical scope disclosed by the present invention should be covered by the protection scope of the present invention.

Claims

1. A tube-sheet type aramid spinneret assembly, characterized in that, It includes a main pipe (1), a plurality of branch pipes (2) and a plurality of connecting pipes (3). First pipe caps (11) are provided at both ends of the main pipe (1), and the first pipe caps (11) are detachably connected to the main pipe (1). The upper ends of the branch pipes (2) communicate with the main pipe (1), and second pipe caps (21) are provided at the lower ends of the branch pipes (2), and the second pipe caps (21) are detachably connected to the branch pipes (2). One end of the connecting pipe (3) communicates with the branch pipe (2), and a spinneret plate (31) is provided at the other end.

2. The tube-sheet type aramid spinneret assembly according to claim 1, wherein A plurality of the connecting pipes (3) are provided on each of the branch pipes (2).

3. The tube-sheet type aramid spinneret assembly according to claim 1, characterized in that, The plurality of branch pipes (2) are arranged in parallel, and the plurality of connecting pipes (3) are arranged in parallel.

4. The tube-sheet type aramid spinneret assembly according to claim 1, characterized in that, The branch pipes (2) are vertically connected to the main pipe (1), and the connecting pipes (3) are vertically connected to the branch pipes (2).

5. The tube-sheet type aramid spinneret assembly according to claim 1, characterized in that, An inlet pipe (12) is further provided in the middle of the main pipe (1), and the inlet pipe (12) is vertically connected to the main pipe (1).

6. The tube-sheet type aramid spinneret assembly according to claim 1, wherein There is a gap between adjacent branch pipes (2), and there is a void between adjacent spinneret plates (31).

7. The tube-sheet type aramid spinneret assembly according to claim 1, characterized in that, The micropores of the spinneret plate (31) are partitioned.

8. The tubular aramid spinneret assembly according to claim 1, characterized in that, The concentration of the spinning solution of the tubular aramid spinneret assembly is 40 - 65%, and the slurry spraying speed of the spinneret plate (31) is 5 - 20 m / min.

9. The tube-sheet type aramid spinneret assembly according to any one of claims 1-8, characterized in that, The first pipe cap (11) is threadedly connected to the main pipe (1), and the second pipe cap (21) is threadedly connected to the branch pipe (2).

10. An aramid spinning solidification component, characterized in that, It includes: At least one set of the tubular aramid spinneret assembly according to any one of claims 1 - 9 and at least one set of a spinneret curing flow channel assembly.

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