Circulating system of meta-position aramid fiber coagulating bath tank

Abstract

The utility model discloses a circulating system of a meta-position aramid fiber coagulating bath tank, which comprises a mounting box, a mounting cover is sleeved on the mounting box in a threaded manner, a rotating frame is rotatably mounted in the mounting box, a first gear ring is sleeved on the rotating frame, a driving wheel is rotatably mounted in the mounting box, a filter screen frame is clamped on the rotating frame, and a second gear ring is sleeved on the filter screen frame. A discharge pipe is fixedly mounted in the mounting box, the filter screen frame is rotatably connected with the discharge pipe, a plurality of groups of annularly distributed cover plates are arranged in the discharge pipe, and impurities contained in a supplementary solvent entering the coagulating bath tank are filtered through the arranged rotating frame and the filter screen frame clamped on the rotating frame; and the condition that external impurities enter the coagulating bath along with the solvent to interfere the solvent-non-solvent mass transfer process of the coagulating bath is effectively avoided.

Description

A circulation system for a meta-aramid fiber coagulation bath Technical Field

[0001] This utility model relates to the field of meta-aramid fiber production technology, specifically to a circulation system for a meta-aramid fiber coagulation bath. Background Technology

[0002] Meta-aramid is a high-temperature resistant fiber variety that was developed early, widely used, produced in large quantities, and experienced rapid growth. It ranks second in total production among specialty fibers. Meta-aramid fibers have important applications in the aerospace field. They can be used as structural materials for aircraft, such as wing and fuselage coverings, reducing weight while maintaining structural strength and safety. In the electronics and information field, meta-aramid fibers can serve as insulating materials for electronic devices; their excellent insulation and heat resistance ensure the stable operation of electronic equipment. The coagulation bath in fiber production is typically used to solidify the spinning solution, allowing the fibers to take shape through the exchange of solvent and non-solvent.

[0003] The input pipeline for replenishing solvent lacks a pretreatment module. External impurities, such as rust particles from the pipeline and environmental dust, mix with fiber debris generated during internal circulation, easily forming suspended contaminants. These impurities, after entering the coagulation bath with the solvent, interfere with the solvent-non-solvent mass transfer process, causing pores or irregular cross-sections on the fiber surface. Furthermore, the static filtration devices installed in some systems can only filter impurities in the solvent and cannot actively clean them, requiring regular intervention from staff, which affects the working efficiency of the circulation system. Summary of the Invention

[0004] The purpose of this invention is to provide a circulation system for a meta-aramid fiber coagulation bath to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a circulation system for a meta-aramid fiber coagulation bath, comprising an installation box, an installation cover threaded onto the top of the installation box, a rotating frame rotatably mounted inside the installation box, a first toothed ring sleeved on the rotating frame, a drive wheel rotatably mounted inside the installation box, the drive wheel meshing with the first toothed ring, a filter screen frame snapped onto the rotating frame, a pressure ring snapped onto the top of the rotating frame, the filter screen frame located between the pressure ring and the rotating frame, two sets of symmetrically distributed slides slidably mounted on the rotating frame, both sets of slides being movably snapped with the pressure ring, a discharge pipe fixedly mounted inside the installation box, the filter screen frame rotatably connected to the discharge pipe, multiple sets of annularly distributed cover plates inside the discharge pipe, and a brush mounted on the filter screen frame, the brush being fitted against the surface of the filter screen frame.

[0006] As a further preferred embodiment of this technical solution, both sets of slides are fixedly fitted with stop blocks, both sets of slides are movably fitted with springs, the two ends of the springs are fixedly connected to the stop blocks and the rotating frame respectively, and both sets of slides are fixedly installed with racks.

[0007] As a further preferred embodiment of this technical solution, a rotating rod is rotatably mounted inside the rotating frame, and a first gear is sleeved on the rotating rod. The first gear meshes with two sets of racks respectively. A handle is rotatably mounted on the rotating frame, and the handle is perpendicular to the rotating rod. A torsion spring is sleeved on both the handle and the rotating rod. The two ends of the torsion spring are fixedly connected to the corresponding handle or rotating rod and the rotating frame respectively. A first bevel gear is sleeved on the rotating rod, and a second bevel gear is sleeved on the handle. The second bevel gear meshes with the first bevel gear.

[0008] As a further preferred embodiment of this technical solution, an installation ring is rotatably installed inside the discharge pipe, and a second toothed ring is sleeved on the installation ring. Multiple sets of cover plates are rotatably connected to the discharge pipe through installation shafts. Multiple sets of installation shafts are sleeved with second gears, and multiple sets of second gears are meshed with the second toothed rings. A collection pipe is threadedly connected to the lower part of the discharge pipe.

[0009] As a further preferred embodiment of this technical solution, a scraper is slidably mounted on the sweeping brush, a first sealing strip is fixedly connected between the scraper and the sweeping brush, a threaded rod is rotatably mounted inside the sweeping brush, the threaded rod passes through the scraper and is threadedly connected to the scraper, the sweeping brush is slidably connected to the mounting box, and a second sealing strip is fixedly connected between the sweeping brush and the mounting box.

[0010] As a further preferred embodiment of this technical solution, a fixing rod is fixedly installed on the mounting box, a first lifting rod is slidably installed inside the fixing rod, a second lifting rod is slidably installed inside the first lifting rod, the upper end of the second lifting rod is fixedly connected to the sweeping brush, a screw is rotatably installed inside the fixing rod, the upper end of the screw passes through the first lifting rod and is threadedly connected to the first lifting rod, a screw tube is rotatably installed inside the first lifting rod, the upper end of the screw tube passes through the second lifting rod and is threadedly connected to the second lifting rod.

[0011] As a further preferred embodiment of this technical solution, the screw is provided with two sets of symmetrically distributed keyways, and the spiral tube is provided with two sets of symmetrically distributed key blocks. The two sets of key blocks are arranged corresponding to the keyways, and the spiral tube is slidably connected to the screw through the key blocks.

[0012] This invention provides a circulation system for a meta-aramid fiber coagulation bath, which has the following beneficial effects:

[0013] (1) This utility model uses a rotating frame and a filter screen that is snapped onto the rotating frame to filter the impurities contained in the supplementary solvent entering the coagulation bath. This effectively prevents external impurities from entering the coagulation bath with the solvent and interfering with the solvent-non-solvent mass transfer process in the coagulation bath, thereby causing pores or irregular cross-sections on the fiber surface. At the same time, the discharge pipe and the collection pipe are used to collect the impurities left on the filter screen after filtration, thus preventing the impurities from remaining on the filter screen and causing adverse effects on the filtration rate of the filter screen.

[0014] (2) This utility model achieves automatic cleaning of the filter screen frame surface by using a set brush and a rotating frame, and uses a scraper to clean the brush, thereby effectively reducing the frequency of manual intervention, enabling the circulation system to operate autonomously, improving work efficiency, and periodically lifting the brush with the first and second lifting rods to facilitate staff to replace the filter screen frame or thoroughly clean the brush. Attached Figure Description

[0015] Figure 1 is a schematic diagram of the overall structure of this utility model;

[0016] Figure 2 is a schematic diagram of the internal structure of the mounting box of this utility model;

[0017] Figure 3 is a schematic diagram showing the structural separation of the rotating frame and the filter screen frame of this utility model;

[0018] Figure 4 is an enlarged view of the structure at point A in Figure 3 of this utility model;

[0019] Figure 5 is an enlarged view of the structure at point B in Figure 3 of this utility model;

[0020] Figure 6 is an enlarged view of the structure at point C in Figure 3 of this utility model;

[0021] In the diagram: 1. Mounting box; 2. Mounting cover; 3. Rotating frame; 4. First gear ring; 5. Drive wheel; 6. Filter screen frame; 7. Pressure ring; 8. Slide frame; 9. Stop block; 10. Spring; 11. Rack; 12. Rotating rod; 13. First gear; 14. Handle; 15. Second bevel gear; 16. First bevel gear; 17. Torsion spring; 18. Discharge pipe; 19. Mounting ring; 20. Second gear ring; 21. Cover plate; 22. Mounting shaft; 23. Second gear; 24. Collection pipe; 25. Fixing rod; 26. First lifting rod; 27. Second lifting rod; 28. Screw; 29. ​​Keyway; 30. Threaded tube; 31. Key block; 32. Sweeping brush; 33. Second sealing strip; 34. Scraper; 35. Threaded rod; 36. First sealing strip. Detailed Implementation

[0022] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention.

[0023] This utility model provides a technical solution: As shown in Figures 1-6, in this embodiment, a circulation system for a meta-aramid fiber coagulation bath includes a mounting box 1. A mounting cover 2 is threaded onto the top of the mounting box 1. A rotating frame 3 is rotatably mounted inside the mounting box 1. A first toothed ring 4 is sleeved on the rotating frame 3. A drive wheel 5 is rotatably mounted inside the mounting box 1, and the drive wheel 5 meshes with the first toothed ring 4. A filter screen frame 6 is snapped onto the rotating frame 3. A pressure ring 7 is snapped onto the top of the rotating frame 3. The filter screen frame 6 is located between the pressure ring 7 and the rotating frame 3. Two sets of symmetrically distributed slides 8 are slidably mounted on the rotating frame 3. Both sets of slides 8 are movably snapped with the pressure ring 7. A discharge pipe 18 is fixedly mounted inside the mounting box 1. The filter screen frame 6 is rotatably connected to the discharge pipe 18. Multiple sets of rings are provided inside the discharge pipe 18. The cover plate 21 is arranged in a shape. The filter frame 6 is equipped with a brush 32, which is attached to the surface of the filter frame 6. Two sets of slides 8 are fixedly fitted with blocks 9. Two sets of slides 8 are movably fitted with springs 10. The two ends of the springs 10 are fixedly connected to the blocks 9 and the rotating frame 3, respectively. Two sets of slides 8 are fixedly installed with racks 11. A rotating rod 12 is rotatably installed inside the rotating frame 3. A first gear 13 is fitted on the rotating rod 12 and meshes with the two sets of racks 11. A handle 14 is rotatably installed on the rotating frame 3. The handle 14 is perpendicular to the rotating rod 12. A torsion spring 17 is fitted on both the handle 14 and the rotating rod 12. The two ends of the torsion spring 17 are fixedly connected to the corresponding handle 14 or rotating rod 12 and the rotating frame 3, respectively. A first bevel gear 16 is fitted onto the handle 12, and a second bevel gear 15 is fitted onto the handle 14. The second bevel gear 15 meshes with the first bevel gear 16. An installation ring 19 is rotatably installed inside the discharge pipe 18, and a second toothed ring 20 is fitted onto the installation ring 19. Multiple sets of cover plates 21 are rotatably connected to the discharge pipe 18 via installation shafts 22. Multiple sets of installation shafts 22 are fitted with second gears 23, and multiple sets of second gears 23 mesh with the second toothed rings 20. A collection pipe 24 is threaded onto the lower part of the discharge pipe 18. The pipe is connected to the installation cover 2, allowing the replenishing solvent to enter the installation box 1 through the pipe and installation cover 2 and fall onto the filter frame 6. The filter frame 6 effectively filters impurities in the replenishing solvent. After filtration, the replenishing solvent enters the lower part of the installation box 1 and connects with the lower part of the installation box 1. The subsequent coagulation of meta-aramid fibers is carried out in the pipes and coagulation bath connected to the square. Impurities contained in the solvent remain on the filter screen frame 6. At this time, multiple sets of cover plates 21 in the discharge pipe 18 are closed, so impurities cannot enter the discharge pipe 18 and the collection pipe 24 below the discharge pipe 18. After a period of use, the motor in the discharge pipe 18 is periodically turned on to drive the mounting shaft 22 to rotate. With the help of multiple sets of second gears 23, mounting rings 19 and second toothed rings 20, the multiple sets of cover plates 21 are opened synchronously. When the discharge pipe 18 is opened, the motor in the synchronous mounting box 1 drives the drive wheel 5 to rotate. With the help of the first toothed ring 4, the rotating frame 3 drives the filter screen frame 6, which is fixed between the rotating frame 3 and the pressure ring 7, to rotate. During the rotation of the filter screen frame 6, it scrapes against the brush 32.The impurities remaining on the filter screen 6 gradually fall into the discharge pipe 18 below. After the impurities have been discharged autonomously, the multiple sets of cover plates 21 are closed to continue the filtration of the solvent entering the coagulation bath.

[0024] As shown in Figures 3 and 6, a scraper 34 is slidably mounted on the sweeping brush 32. A first sealing strip 36 is fixedly connected between the scraper 34 and the sweeping brush 32. A threaded rod 35 is rotatably mounted inside the sweeping brush 32, passing through the scraper 34 and threadedly connected to it. The sweeping brush 32 is slidably connected to the mounting box 1. A second sealing strip 33 is fixedly connected between the sweeping brush 32 and the mounting box 1. A fixing rod 25 is fixedly mounted on the mounting box 1. A first lifting rod 26 is slidably mounted inside the fixing rod 25. A sliding mechanism is installed inside the first lifting rod 26. The second lifting rod 27 is fixedly connected to the brush 32 at its upper end. A screw 28 is rotatably installed inside the fixing rod 25. The upper end of the screw 28 passes through the first lifting rod 26 and is threadedly connected to the first lifting rod 26. A screw tube 30 is rotatably installed inside the first lifting rod 26. The upper end of the screw tube 30 passes through the second lifting rod 27 and is threadedly connected to the second lifting rod 27. Two sets of symmetrically distributed keyways 29 are provided on the screw 28. Two sets of symmetrically distributed key blocks 31 are provided inside the screw tube 30. The two sets of key blocks 31 are correspondingly set with the keyways 29. The solenoid 30 is slidably connected to the screw 28 via the key block 31. The brush 32 is fixed in a stationary position. When the filter frame 6 rotates at a constant speed with the rotating frame 3, the brush 32, which is in contact with the surface of the filter frame 6, cleans the surface of the filter frame 6. Simultaneously, when the motor inside the brush 32 drives the threaded rod 35 to rotate, the scraper 34 can slide on the brush 32 under the limiting action of the brush 32, thereby cleaning the impurities attached to the brush 32 and preventing the impurities on the brush 32 from causing secondary pollution on the filter frame 6. At the same time, it is opened periodically. The motor in the fixed rod 25 drives the screw 28 to rotate. Under the limiting action of the fixed rod 25, the first lifting rod 26 slides upward in the fixed rod 25 and drives the screw tube 30 to slide synchronously. Under the action of the key block 31 and the keyway 29, the screw tube 30 rotates synchronously with the screw 28. Therefore, under the limiting action of the first lifting rod 26, the second lifting rod 27 drives the brush 32 to slide upward and separate from the filter frame 6, which makes it convenient for the staff to thoroughly clean the brush 32 regularly and to disassemble the filter frame 6 on the rotating frame 3.

[0025] This invention provides a circulation system for a meta-aramid fiber coagulation bath. The specific working principle is as follows: A pipe is connected to a mounting cover 2, allowing the replenishing solvent to enter the mounting box 1 through the pipe and mounting cover 2, falling onto a filter frame 6. The filter frame 6 effectively filters impurities in the replenishing solvent. After filtration, the replenishing solvent enters the area below the mounting box 1 and the pipe connected to the area below the mounting box 1, and then into the coagulation bath for subsequent meta-aramid fiber coagulation. Impurities contained in the replenishing solvent remain on the filter frame 6. At this time, multiple sets of cover plates 21 in the discharge pipe 18 are closed, thus preventing impurities from entering. The material enters the discharge pipe 18 and the collection pipe 24 below it. After a period of use, the motor in the discharge pipe 18 is periodically turned on to drive the mounting shaft 22 to rotate. This, in conjunction with multiple sets of second gears 23, mounting rings 19, and second gear rings 20, enables the synchronous opening of multiple sets of cover plates 21. As the discharge pipe 18 opens, the motor in the mounting box 1 drives the drive wheel 5 to rotate. This, in conjunction with the first gear ring 4, causes the rotating frame 3 to rotate, along with the filter screen frame 6 fixed between the rotating frame 3 and the pressure ring 7. During the rotation of the filter screen frame 6, it scrapes against the brush 32, gradually removing impurities remaining on the filter screen frame 6. The impurities fall into the discharge pipe 18 below. After the impurities are discharged autonomously, the multiple sets of cover plates 21 are closed to continue the filtration of the solvent added to the coagulation bath. The brush 32 is stationary in a fixed position. When the filter screen frame 6 rotates at a constant speed with the rotating frame 3, the brush 32, which is in contact with the surface of the filter screen frame 6, cleans the surface of the filter screen frame 6. Simultaneously, when the motor inside the brush 32 drives the threaded rod 35 to rotate, the scraper 34 can slide on the brush 32 under the limiting action of the brush 32, thereby cleaning the impurities attached to the brush 32 and preventing the impurities on the brush 32 from being transferred to the filter screen. Secondary pollution is caused on the frame 6. At the same time, the motor in the fixed rod 25 is turned on periodically to drive the screw 28 to rotate. Under the limiting action of the fixed rod 25, the first lifting rod 26 slides upward in the fixed rod 25 and drives the screw tube 30 to slide synchronously. Under the action of the key block 31 and the keyway 29, the screw tube 30 rotates synchronously with the screw 28. Therefore, under the limiting action of the first lifting rod 26, the second lifting rod 27 drives the brush 32 to slide upward and separate from the filter frame 6, which makes it convenient for the staff to thoroughly clean the brush 32 regularly and to facilitate the disassembly of the filter frame 6 on the rotating frame 3.

[0026] Although embodiments of the present 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 present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A circulation system for a meta-aramid fiber coagulation bath, comprising a mounting box (1), characterized in that: A mounting cover (2) is threaded onto the top of the mounting box (1). A rotating frame (3) is rotatably mounted inside the mounting box (1). A first toothed ring (4) is fitted onto the rotating frame (3). A drive wheel (5) is rotatably mounted inside the mounting box (1). The drive wheel (5) meshes with the first toothed ring (4). A filter screen frame (6) is snapped onto the rotating frame (3). A pressure ring (7) is snapped onto the top of the rotating frame (3). The filter screen frame (6) is located between the pressure ring (7) and the rotating frame. Between (3), two sets of symmetrically distributed slides (8) are slidably installed on the rotating frame (3). Both sets of slides (8) are movably engaged with the pressure ring (7). A discharge pipe (18) is fixedly installed in the mounting box (1). The filter screen frame (6) is rotatably connected to the discharge pipe (18). Multiple sets of annularly distributed cover plates (21) are provided in the discharge pipe (18). A brush (32) is provided on the filter screen frame (6). The brush (32) is attached to the surface of the filter screen frame (6).

2. The circulation system of the meta-aramid fiber coagulation bath according to claim 1, characterized in that: Both sets of slides (8) are fixedly fitted with stop blocks (9), and both sets of slides (8) are movably fitted with springs (10). The two ends of the springs (10) are fixedly connected to the stop blocks (9) and the rotating frame (3) respectively. Both sets of slides (8) are fixedly installed with racks (11).

3. The circulation system of the meta-aramid fiber coagulation bath according to claim 1, characterized in that: A rotating rod (12) is rotatably installed inside the rotating frame (3). A first gear (13) is sleeved on the rotating rod (12). The first gear (13) is meshed with two sets of racks (11). A handle (14) is rotatably installed on the rotating frame (3). The handle (14) is perpendicular to the rotating rod (12). A torsion spring (17) is sleeved on both the handle (14) and the rotating rod (12). The two ends of the torsion spring (17) are fixedly connected to the corresponding handle (14) or rotating rod (12) and the rotating frame (3). A first bevel gear (16) is sleeved on the rotating rod (12). A second bevel gear (15) is sleeved on the handle (14). The second bevel gear (15) meshes with the first bevel gear (16).

4. The circulation system of the meta-aramid fiber coagulation bath according to claim 1, characterized in that: An installation ring (19) is rotatably installed inside the discharge pipe (18). A second toothed ring (20) is sleeved on the installation ring (19). Multiple sets of cover plates (21) are rotatably connected to the discharge pipe (18) through installation shafts (22). Multiple sets of installation shafts (22) are sleeved with second gears (23). Multiple sets of second gears (23) are meshed with the second toothed rings (20). A collection pipe (24) is threadedly sleeved below the discharge pipe (18).

5. The circulation system of the meta-aramid fiber coagulation bath according to claim 1, characterized in that: A scraper (34) is slidably mounted on the sweeping brush (32). A first sealing strip (36) is fixedly connected between the scraper (34) and the sweeping brush (32). A threaded rod (35) is rotatably mounted inside the sweeping brush (32). The threaded rod (35) passes through the scraper (34) and is threadedly connected to the scraper (34). The sweeping brush (32) is slidably connected to the mounting box (1). A second sealing strip (33) is fixedly connected between the sweeping brush (32) and the mounting box (1).

6. The circulation system of the meta-aramid fiber coagulation bath according to claim 1, characterized in that: A fixing rod (25) is fixedly installed on the mounting box (1). A first lifting rod (26) is slidably installed inside the fixing rod (25). A second lifting rod (27) is slidably installed inside the first lifting rod (26). The upper end of the second lifting rod (27) is fixedly connected to the brush (32). A screw (28) is rotatably installed inside the fixing rod (25). The upper end of the screw (28) passes through the first lifting rod (26) and is threadedly connected to the first lifting rod (26). A screw tube (30) is rotatably installed inside the first lifting rod (26). The upper end of the screw tube (30) passes through the second lifting rod (27) and is threadedly connected to the second lifting rod (27).

7. The circulation system of the meta-aramid fiber coagulation bath according to claim 6, characterized in that: The screw (28) has two sets of symmetrically distributed keyways (29), and the solenoid (30) has two sets of symmetrically distributed key blocks (31). The two sets of key blocks (31) are correspondingly arranged with the keyways (29), and the solenoid (30) is slidably connected to the screw (28) through the key blocks (31).

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