Para-aramid spinning cleaning device

Abstract

The utility model relates to the technical field of aramid fiber spinning, in particular to a para-aramid fiber spinning cleaning device which comprises a shell, one side of the shell is in butt joint with a yarn feeding device, the other side of the shell is in butt joint with a traction device, the interior of the shell is divided into a spraying cavity, a first cleaning cavity and a second cleaning cavity from top to bottom, each cavity is provided with a yarn inlet and a yarn outlet, and the first cleaning cavity is communicated with the second cleaning cavity. Guide roller sets are arranged at the yarn inlet and the yarn outlet, a spraying mechanism for spraying alkali liquor is arranged in the spraying cavity, cleaning liquid is contained in the first cleaning cavity, clear water is contained in the second cleaning cavity, cleaning double rollers are arranged in the first cleaning cavity and the second cleaning cavity, and aramid yarn is guided by the guide roller sets to be subjected to cleaning and cleaning. The silk enters the spraying cavity, the first cleaning cavity and the second cleaning cavity in sequence from the silk feeding device, and finally the silk is discharged from a silk outlet of the second cleaning cavity under traction of the traction device. The aramid yarn cleaning device provided by the utility model is good in cleaning effect and high in production cleanliness.

Description

Technical Field

[0001] The utility model relates to the technical field of aramid spinning, in particular to a para-aramid spinning cleaning device. Background Art

[0002] Para-aramid is a fiber with high strength, high modulus, high temperature resistance and other properties. It is widely used in defense and military industry, civil engineering, aerospace, electromechanical, construction, automotive sports goods and other fields, and has irreplaceable advantages. With the continuous maturity of domestic para-aramid spinning technology, the performance of para-aramid spinning equipment has become one of the important factors affecting the spinning process.

[0003] In order to avoid the accumulation of static electricity caused by continuous friction during spinning and textile processing and to give the fiber soft and smooth properties, chemical fiber oils are used. When using para-aramid, it is necessary to wash it to remove the oil attached to the surface, because the presence of the oil will affect the dispersion and surface activity of the aramid yarn.

[0004] The patent with application number CN201721895597.6 discloses an aramid fiber surface treatment cleaning tank, in which a cleaning wheel group is provided in the water tank, and a steering roller group and a tensioning roller are provided at the front and rear ends of the water tank respectively; the steering roller includes an upper pulley installed at the mouth of the water tank, and also includes a lower pulley installed under the liquid level of the water tank; the tensioning roller is located outside the water tank; the cleaning wheel group includes a pair of cleaning rollers, the cleaning rollers include a central axis, a roller cylinder is provided outside the central axis, and a plurality of raised sponge strips are provided outside the roller cylinder; the sponge strips are vertically symmetrically distributed outside the roller cylinder, and gaps are left between adjacent sponge strips, and the sponge strips of a pair of cleaning rollers are interlocked. The aramid fiber surface treatment cleaning tank provided by the patent uses the extrusion of the cleaning wheel group to scrub the aramid fiber. In the above technical scheme, due to the characteristics of the aramid yarn itself, the aramid yarn is gathered into bundles during cleaning, and the cleaning liquid is not easy to penetrate into the interior of the aramid yarn bundle. In addition, the cleaning liquid is only used for one cleaning, resulting in incomplete cleaning. Secondly, the cleaning liquid in the cleaning tank is at room temperature and the cleaning effect is weak. Finally, the aramid yarn after cleaning carries a large amount of cleaning liquid when it is produced, affecting the cleanliness of the production environment. Utility Model Content

[0005] In order to solve at least one of the above problems, the utility model provides a para-aramid spinning cleaning device, including a shell, one side of the shell is connected to a wire feeding device, and the other side is connected to a traction device, and a spray chamber, a first cleaning chamber and a second cleaning chamber are arranged in sequence from top to bottom in the shell, each chamber is provided with a wire inlet and a wire outlet, and a guide roller group is arranged at the wire inlet and the wire outlet, and a spray mechanism for spraying alkali solution is arranged in the spray chamber, the first cleaning chamber is filled with cleaning liquid, and the second cleaning chamber is filled with clean water, and a pair of cleaning rollers are arranged in the first cleaning chamber and the second cleaning chamber, and the aramid yarn enters the spray chamber, the first cleaning chamber and the second cleaning chamber in sequence from the wire feeding device under the guidance of the guide roller group, and finally emerges from the wire outlet of the second cleaning chamber under the traction of the traction device.

[0006] Preferably, a side wall of the shell along the wire feeding direction is a sealing door, a first drain port is provided below the side wall of the spray chamber, a first liquid inlet is provided above the side wall of the first cleaning chamber, a second drain port is provided below the side wall, a second liquid inlet is provided above the side wall of the second cleaning chamber, and a third drain port is provided below the side wall.

[0007] Preferably, the guide roller group includes a plurality of spray chamber guide rollers, a plurality of first cleaning chamber guide rollers and a plurality of second cleaning chamber guide rollers.

[0008] Preferably, a wire guide is provided at the wire inlet of the spray chamber. The wire guide is comb-shaped and fixedly arranged on the outside of the guide roller group. The aramid yarn bundle in the wire feeding device is combed into a single aramid yarn and then enters the guide roller group, so that the aramid yarn is transported in the spray chamber, the first cleaning chamber and the second cleaning chamber in a horizontal sheet shape.

[0009] Preferably, the spray mechanism is symmetrically provided with a plurality of nozzles on both upper and lower sides along the conveying direction of the aramid yarn to spray the alkali solution onto the upper and lower surfaces of the layered aramid yarn.

[0010] Preferably, the spray mechanism includes a liquid inlet main pipe extending along the conveying direction of the aramid yarn, and a plurality of horizontal liquid inlet branches are vertically arranged on the liquid inlet main pipe. Horizontal water spray pipes are vertically symmetrically arranged on both sides of the liquid inlet branches, and the upper end face of each water spray pipe is connected to the nozzle. A plurality of water spray pipes are equidistantly arranged along the length direction of the liquid inlet branch.

[0011] Preferably, the cleaning pair of rollers includes two heating rollers with the same structure and arranged opposite to each other. The heating rollers are rotatably sealed and fixed on the side wall of the shell along the wire feeding direction. The central axis of the heating rollers is externally connected to a motor and a heating source. A sponge ring is sleeved on the heating roller, and the upper and lower sponge rings abut against each other.

[0012] Preferably, annular protrusions are circumferentially provided on the outer ring wall of the sponge ring, and the annular protrusions are equidistantly arranged along the axial direction of the sponge ring. The axial distance between two adjacent annular protrusions is equal to the axial distance of one annular protrusion, and the annular protrusions of the upper and lower sponge rings are in meshing shape.

[0013] Preferably, a pair of water squeezing rollers is provided at the silk outlet of the second cleaning chamber, and the pair of water squeezing rollers includes a fixed roller and a movable roller arranged in parallel, the fixed roller is covered with a first sponge cover, and the movable roller is covered with a second sponge cover, and the roller shafts of the fixed roller and the movable roller are fixed on two relatively arranged fixed seats, and the movable roller can rotate circumferentially and can move vertically relative to the fixed roller, abutting and squeezing the aramid silk between the fixed roller and the movable roller.

[0014] Preferably, the fixed seat includes an L-shaped fixed seat body fixed on the shell, the side wall of the fixed seat body is provided with a vertical slide rail, the vertical slide rail is connected to a slider, the bottom of the slider is connected to a spring, the spring is fixed to the bottom of the fixed seat body, the roller shaft of the movable roller can be rotatably fixed on the slider, and the roller shaft of the fixed roller is fixed to the side wall of the fixed seat body.

[0015] Preferably, a liquid collecting trough is provided at the bottom of the shell, and the liquid collecting trough is preferably arranged at both ends of the shell's wire inlet and wire outlet. A liquid inlet trough is provided above the wire outlet of the second cleaning chamber, and the liquid inlet trough collects liquid dripping from the guide roller group above it and introduces it into the liquid collecting trough through a liquid inlet pipe.

[0016] Compared with the prior art, the utility model has the following advantages:

[0017] 1. By setting a spray chamber, a first cleaning chamber and a second cleaning chamber, the aramid yarn is sprayed with alkali solution, cleaned with detergent and washed with water in sequence, so that the cleaning effect is good and the oil on the aramid yarn can be completely removed;

[0018] 2. By setting a yarn guide, the bundled aramid yarn is combed into sheets to promote the cleaning effect;

[0019] 3. The spraying mechanism is symmetrically provided with multiple nozzles on the upper and lower sides along the conveying direction of the aramid yarn, spraying alkali solution on the upper and lower sides of the layered aramid yarn to improve the uniformity of alkali solution spraying;

[0020] 4. The cleaning roller pair includes two heating rollers with the same structure and arranged opposite to each other, which can heat the liquid in the first cleaning chamber and the second cleaning chamber to improve the cleaning effect. At the same time, the sponge rings with annular protrusions can mesh with each other to squeeze and clean the aramid yarn passing through, thereby improving the cleaning effect;

[0021] 5. A pair of water squeezing rollers are provided at the outlet of the second cleaning chamber. The water squeezing rollers can effectively remove the water carried by the aramid yarn after cleaning to ensure a clean environment.

[0022] 6. The liquid collecting tank can collect the liquid dripping during the aramid wire feeding process, thus improving the cleanliness of the production environment;

[0023] In summary, the aramid yarn cleaning device provided by the utility model has good cleaning effect and high production cleanliness. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 It is a schematic diagram of the structure of the utility model;

[0025] Figure 2 It is a cross-sectional view of the utility model;

[0026] Figure 3 is a structural schematic diagram of a wire guide;

[0027] Figure 4 It is a structural schematic diagram of the spray mechanism;

[0028] Figure 5 It is a structural schematic diagram of the cleaning roller;

[0029] Figure 6 It is a schematic diagram of the structure of the water squeezing roller;

[0030] Figure 7 for Figure 6 A partial enlarged view of middle A.

[0031] Reference numerals:

[0032] 1. Shell, 11. Spray chamber, 12. First cleaning chamber, 13. Second cleaning chamber, 14. First drain port, 15. First liquid inlet, 16. Second liquid inlet, 17. Second liquid inlet, 18. Third drain port, 19. Sealing door, 2. Guide roller group, 21. Spray chamber guide roller, 22. First cleaning chamber guide roller, 23. Second cleaning chamber guide roller, 3. Wire guide, 4. Spray mechanism, 41. Liquid inlet main pipe, 42. Liquid inlet Branch pipe, 43, water spray pipe, 44, nozzle, 5, cleaning roller, 51, heating roller, 52, sponge ring, 521, annular protrusion, 6, water squeezing roller, 61, fixed roller, 611, first sponge cover, 62, moving roller, 621, second sponge cover, 63, fixed seat, 631, fixed seat body, 632, vertical slide rail, 633, slider, 634, spring, 7, liquid collecting tank, 71, liquid guide tank, 72, liquid guide tube. DETAILED DESCRIPTION

[0033] The following describes the specific implementation of the utility model in conjunction with the accompanying drawings and embodiments:

[0034] It should be noted that the structures, proportions, sizes, etc. illustrated in the drawings of this specification are only used to match the contents disclosed in the specification for people familiar with this technology to understand and read, and are not used to limit the conditions under which the present invention can be implemented. Any structural modification, change in proportional relationship or adjustment of size should fall within the scope of the technical content disclosed in the present invention without affecting the effects and purposes that can be achieved by the present invention.

[0035] At the same time, the terms such as "upper", "lower", "left", "right", "middle" and "one" cited in this specification are only for the convenience of description and are not used to limit the scope of the implementation of the present utility model. Changes or adjustments to their relative relationships should be regarded as the scope of the implementation of the present utility model without substantially changing the technical content.

[0036] Example 1

[0037] Combined with Figure 1-6 The present embodiment provides a para-aramid spinning cleaning device, comprising a housing 1, one side of the housing 1 is connected to a wire feeding device, and the other side is connected to a traction device, and a spray chamber 11, a first cleaning chamber 12, and a second cleaning chamber 13 are sequentially arranged in the housing 1 from top to bottom, each chamber is provided with a wire inlet and a wire outlet, and a guide roller group 2 is arranged at the wire inlet and the wire outlet, and a spray mechanism 4 for spraying alkali solution is arranged in the spray chamber 11, the first cleaning chamber 12 is filled with cleaning liquid, and the second cleaning chamber 13 is filled with clean water, and a pair of cleaning rollers 5 are arranged in the first cleaning chamber 12 and the second cleaning chamber 13, and the aramid yarn enters the spray chamber 11, the first cleaning chamber 12, and the second cleaning chamber 13 in sequence from the wire feeding device under the guidance of the guide roller group 2, and finally exits from the wire outlet of the second cleaning chamber 13 under the traction of the traction device. In the above technical scheme, the wire feeding device and the traction device adopt conventional equipment in the field, and the wire feeding device can provide aramid yarn bundles to the cleaning device, and the traction device can pull the aramid yarn in the cleaning device out of the yarn. The cleaning pair of rollers 5 can adopt any suitable pair of roller structures in the prior art (including but not limited to the cleaning wheel set in the patent with application number CN201721895597.6).

[0038] In a specific structure, a side wall of the housing 1 along the wire feeding direction is a sealing door 19, a first liquid discharge port 14 is provided below the side wall of the spray chamber 11, a first liquid inlet 15 is provided above the side wall of the first cleaning chamber 12, a second liquid discharge port 16 is provided below the side wall, a second liquid inlet 17 is provided above the side wall of the second cleaning chamber 13, and a third liquid discharge port 18 is provided below the side wall. In the above technical scheme, the sealing door 19 is a side wall of the housing 1. When the aramid yarn is introduced into the housing 1, the sealing door 19 is in an open state, so that the spray chamber 11, the first cleaning chamber 12 and the second cleaning chamber 13 are in an open state, which is convenient for workers to perform wire guiding operations. When the wire guiding is completed, the sealing door 19 is closed, the spray chamber 11, the first cleaning chamber 12 and the second cleaning chamber 13 are in a sealed state, and the corresponding liquid is injected.

[0039] In a specific structure, the guide roller group 2 includes a plurality of spray chamber guide rollers 21, a plurality of first cleaning chamber guide rollers 22 and a plurality of second cleaning chamber guide rollers 23. The plurality of spray chamber guide rollers 21 horizontally guide the aramid yarn into the spray chamber 11, the plurality of first cleaning chamber guide rollers 22 horizontally guide the aramid yarn into the cleaning pair rollers 5 of the first cleaning chamber 12, and the plurality of second cleaning chamber guide rollers 23 horizontally guide the aramid yarn into the cleaning pair rollers 5 of the second cleaning chamber 13.

[0040] The working principle and working process of this embodiment are as follows: one end of the aramid yarn enters the cleaning device from the yarn feeding device and is pulled away from the cleaning device by the pulling device. In the shell 1 of the cleaning device, the spray mechanism 4 in the spray chamber 11 sprays a sodium hydroxide solution with a mass fraction of 3.5% to the aramid yarn. The sodium hydroxide solution can separate the aramid yarns that are gathered into bundles from each other, can accelerate the infiltration and cleaning process of the cleaning liquid and the single aramid yarn in the subsequent cleaning, and also provide an alkaline atmosphere for the subsequent cleaning. After the aramid yarn is sprayed with the alkaline solution, it is guided into the first cleaning chamber 12 through the guide roller group 2. The first cleaning chamber 12 contains a cleaning liquid composed of sodium dodecyl sulfate and triethanolamine, which can effectively remove the oil on the aramid yarn. The aramid yarn is immersed in the cleaning liquid and is squeezed and cleaned by the cleaning roller 5 to completely remove the oil on the aramid yarn. The cleaned aramid yarn is guided into the second cleaning chamber 13 through the guide roller group 2. The second cleaning chamber 13 is filled with clean water. The aramid yarn is immersed in the water and is squeezed and cleaned by the cleaning roller 5. The cleaned aramid yarn is pulled away from the cleaning device by the pulling mechanism and enters the next process.

[0041] In this embodiment, a spray chamber 11, a first cleaning chamber 12 and a second cleaning chamber 13 are provided to spray alkali solution, clean the aramid yarn with detergent and wash it with water in sequence, so that the cleaning effect is good and the oil on the aramid yarn can be completely removed.

[0042] Example 2

[0043] This embodiment provides a para-aramid spinning cleaning device. On the basis of embodiment 1, a yarn guide 3 is added to comb the bundled aramid yarn into a sheet shape to promote the cleaning effect. The specific technical scheme is as follows:

[0044] like Figure 3 As shown, a wire guide 3 is provided at the wire inlet of the spray chamber 11. The wire guide 3 is comb-shaped and fixedly arranged on the outside of the guide roller group 2. The aramid yarn bundle in the wire feeding device is combed into a single aramid yarn and then enters the guide roller group 2, so that the aramid yarn is transported in the spray chamber 11, the first cleaning chamber 12 and the second cleaning chamber 13 in a horizontal sheet shape.

[0045] Example 3

[0046] This embodiment provides a para-aramid spinning cleaning device. On the basis of Embodiment 1 or 2, the structure of the spray mechanism 4 is optimized to improve the uniformity of alkali solution spraying. The specific technical solution is as follows:

[0047] The spray mechanism 4 is symmetrically provided with a plurality of spray heads 44 on both upper and lower sides along the conveying direction of the aramid yarn, for spraying alkali solution onto the upper and lower surfaces of the layered aramid yarn.

[0048] In a specific structure, the spray mechanism 4 includes a liquid inlet main pipe 41 extending along the conveying direction of the aramid yarn, and a plurality of horizontal liquid inlet branches 42 are vertically arranged on the liquid inlet main pipe 41. Horizontal water spray pipes 43 are vertically symmetrically arranged on both sides of the liquid inlet branches 42. The upper end face of each water spray pipe 43 is connected to the nozzle 44, and a plurality of water spray pipes 43 are equidistantly arranged along the length direction of the liquid inlet branch pipe 42.

[0049] Example 4

[0050] This embodiment provides a para-aramid spinning cleaning device. On the basis of Embodiment 1, 2 or 3, the structure of the cleaning roller 5 is further optimized to further improve the cleaning effect of the cleaning roller 5. The specific technical solution is as follows:

[0051] The cleaning roller pair 5 comprises two heating rollers 51 of the same structure and arranged opposite to each other. The heating rollers 51 are rotatably sealed and fixed on the side wall of the housing 1 along the wire feeding direction. The central axis of the heating rollers 51 is externally connected to a motor (not shown in the figure) and a heating source (not shown in the figure). A sponge ring 52 is sleeved on the heating rollers 51, and the upper and lower sponge rings 52 abut against each other. In the above technical solution, the side wall along the wire feeding direction is the side wall opposite to the sealing door 19.

[0052] In a specific structure, the outer ring wall of the sponge ring 52 is circumferentially provided with annular protrusions 521, and the annular protrusions 521 are arranged equidistantly along the axial direction of the sponge ring 52, and the axial distance between two adjacent annular protrusions 521 is equal to the axial distance of one annular protrusion 521, and the annular protrusions 521 of the upper and lower sponge rings 52 are in meshing shape. In the above technical solution, "meshing shape" means that Figure 5 As shown, the annular protrusions 521 of the two sponge rings 52 are arranged in a staggered manner and fit closely to each other.

[0053] In this embodiment, the heating roller 51 includes but is not limited to an electric heating roller, which can heat the liquid in the first cleaning chamber 12 and the second cleaning chamber 13 to about 55°. The increase in the liquid temperature can improve the cleaning effect; the motor drives the two heating rollers 51 to rotate relative to each other, and the sponge ring 52 with annular protrusions 521 can engage with each other to squeeze and clean the passing aramid yarn, thereby improving the cleaning effect.

[0054] Example 5

[0055] This embodiment provides a para-aramid spinning cleaning device. On the basis of Embodiment 1, 2, 3 or 4, a water squeezing roller 6 is added to effectively remove the water carried by the aramid yarn after cleaning to ensure a clean environment. The specific technical solution is as follows:

[0056] A pair of water squeezing rollers 6 are provided at the outlet of the second cleaning chamber 13. The pair of water squeezing rollers 6 include a fixed roller 61 and a movable roller 62 arranged in parallel. The fixed roller 61 covers a first sponge cover 611, and the movable roller 62 covers a second sponge cover 621. The roller shafts of the fixed roller 61 and the movable roller 62 are fixed on two oppositely arranged fixed seats 63. The movable roller 62 can rotate circumferentially and can move vertically relative to the fixed roller 61, abutting against and squeezing the aramid filaments between the fixed roller 61 and the movable roller 62. In the above technical solution, the first sponge cover 611 and the second sponge cover 621 are elastically abutted, and the water in the aramid filaments can be fully squeezed out.

[0057] In a specific structure, the fixed seat 63 includes an L-shaped fixed seat body 631 fixed on the shell 1, and the side wall of the fixed seat body 631 is provided with a vertical slide rail 632, the vertical slide rail 632 is connected to a slider 633, the bottom of the slider 633 is connected to a spring 634, and the spring 634 is fixed to the bottom of the fixed seat body 631, the roller shaft of the movable roller 62 can be rotatably fixed on the slider 633, and the roller shaft of the fixed roller 61 is fixed to the side wall of the fixed seat body 631.

[0058] Example 6

[0059] This embodiment provides a para-aramid spinning cleaning device. On the basis of Embodiments 1, 2, 3, 4 or 5, a liquid collecting tank 7 is provided to collect liquid dripping during the spinning process of the aramid yarn to improve the cleanliness of the production environment. The specific technical scheme is as follows:

[0060] A liquid collecting tank 7 is provided at the bottom of the shell 1, and the liquid collecting tank 7 is provided at both ends of the wire inlet and the wire outlet of the shell 1. A liquid inlet tank 71 is provided above the wire outlet of the second cleaning chamber 13, and the liquid inlet tank 71 collects the liquid dripping from the guide roller group 2 above it and introduces it into the liquid collecting tank 7 through the liquid inlet pipe 72.

[0061] The above embodiments are preferred implementation modes of the present invention, but the implementation modes of the present invention are not limited by the above embodiments. Any other changes, modifications, substitutions, combinations, and simplifications that do not deviate from the spirit and principles of the present invention should be equivalent replacement methods and are included in the protection scope of the present invention.

Claims

1. A para-aramid spinning cleaning device, comprising a housing (1), one side of the housing (1) is connected to a yarn feeding device, and the other side of the housing (1) is connected to a traction device, characterized in that: The shell (1) is provided with a spray chamber (11), a first cleaning chamber (12) and a second cleaning chamber (13) from top to bottom, each chamber is provided with a wire inlet and a wire outlet, and a guide roller group (2) is provided at the wire inlet and the wire outlet. The spray chamber (11) is provided with a spray mechanism (4) for spraying alkali solution, the first cleaning chamber (12) is filled with cleaning liquid, the second cleaning chamber (13) is filled with clean water, and the first cleaning chamber (12) and the second cleaning chamber (13) are both provided with a pair of cleaning rollers (5). Under the guidance of the guide roller group (2), the aramid yarn enters the spray chamber (11), the first cleaning chamber (12) and the second cleaning chamber (13) from the wire inlet device in sequence, and finally exits from the wire outlet of the second cleaning chamber (13) under the traction of the traction device.

2. A para-aramid spinning cleaning device according to claim 1, characterized in that: A side wall of the shell (1) along the wire feeding direction is a sealing door (19); a first liquid discharge port (14) is provided below the side wall of the spray chamber (11); a first liquid inlet (15) is provided above the side wall of the first cleaning chamber (12); and a second liquid discharge port (16) is provided below the side wall; a second liquid inlet (17) is provided above the side wall of the second cleaning chamber (13); and a third liquid discharge port (18) is provided below the side wall.

3. The para-aramid spinning cleaning device according to claim 1, characterized in that: The guide roller group (2) comprises a plurality of spray chamber guide rollers (21), a plurality of first cleaning chamber guide rollers (22) and a plurality of second cleaning chamber guide rollers (23).

4. The para-aramid spinning cleaning device according to claim 1, characterized in that: A wire guide (3) is provided at the wire inlet of the spray chamber (11). The wire guide (3) is in the shape of a comb and is fixedly arranged on the outside of the guide roller group (2). The aramid yarn bundle in the wire feeding device is combed into a single aramid yarn and then enters the guide roller group (2), so that the aramid yarn is transported in the spray chamber (11), the first cleaning chamber (12) and the second cleaning chamber (13) in the form of a horizontal sheet.

5. The para-aramid spinning cleaning device according to claim 4, characterized in that: The spray mechanism (4) is symmetrically provided with a plurality of spray heads (44) on both upper and lower sides along the conveying direction of the aramid yarn, and sprays alkali solution onto the upper and lower surfaces of the layered aramid yarn.

6. A para-aramid spinning cleaning device according to claim 5, characterized in that: The spray mechanism (4) comprises a liquid inlet main pipe (41) extending along the conveying direction of the aramid yarn, a plurality of horizontal liquid inlet branch pipes (42) are vertically arranged on the liquid inlet main pipe (41), horizontal water spray pipes (43) are vertically symmetrically arranged on both sides of the liquid inlet branch pipes (42), the upper end surface of each water spray pipe (43) is connected to the spray head (44), and a plurality of water spray pipes (43) are equidistantly arranged along the length direction of the liquid inlet branch pipes (42).

7. The para-aramid spinning cleaning device according to claim 1, characterized in that: The pair of cleaning rollers (5) comprises two heating rollers (51) of identical structure and arranged opposite to each other. The heating rollers (51) are rotatably sealed and fixed on a side wall of the housing (1) along the wire feeding direction. The central axis of the heating rollers (51) is externally connected to a motor and a heating source. A sponge ring (52) is sleeved on the heating rollers (51), and the upper and lower sponge rings (52) are in contact with each other.

8. The para-aramid spinning cleaning device according to claim 7, characterized in that: The outer ring wall of the sponge ring (52) is circumferentially provided with annular protrusions (521), the annular protrusions (521) are arranged equidistantly along the axial direction of the sponge ring (52), the axial distance between two adjacent annular protrusions (521) is equal to the axial distance of one annular protrusion (521), and the annular protrusions (521) of the upper and lower sponge rings (52) are in meshing shape.

9. The para-aramid spinning cleaning device according to claim 1, characterized in that: A pair of water squeezing rollers (6) are provided at the silk outlet of the second cleaning chamber (13), the pair of water squeezing rollers (6) comprising a fixed roller (61) and a movable roller (62) arranged in parallel, the fixed roller (61) covering a first sponge cover (611), the movable roller (62) covering a second sponge cover (621), the roller shafts of the fixed roller (61) and the movable roller (62) being fixed on two fixed seats (63) arranged opposite to each other, the movable roller (62) being rotatable in the circumferential direction and being movable vertically relative to the fixed roller (61), abutting against and squeezing the aramid silk between the fixed roller (61) and the movable roller (62).

10. The para-aramid spinning cleaning device according to claim 9, characterized in that: The fixed seat (63) comprises an L-shaped fixed seat body (631) fixed on the shell (1); a vertical slide rail (632) is provided on the side wall of the fixed seat body (631); the vertical slide rail (632) is connected to a slider (633); the bottom of the slider (633) is connected to a spring (634); the spring (634) is fixed to the bottom of the fixed seat body (631); the roller shaft of the movable roller (62) is rotatably fixed on the slider (633); and the roller shaft of the fixed roller (61) is fixed to the side wall of the fixed seat body (631).

11. The para-aramid spinning cleaning device according to claim 1, characterized in that: A liquid collecting trough (7) is provided at the bottom of the shell (1), and the liquid collecting trough (7) is provided at both ends of the wire inlet and the wire outlet of the shell (1). A liquid inlet trough (71) is provided above the wire outlet of the second cleaning chamber (13), and the liquid inlet trough (71) collects liquid dripping from the guide roller group (2) above it and introduces it into the liquid collecting trough (7) through a liquid inlet pipe (72).

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