Aromatic polysulfonamide fiber separator and method for preparing the same

Abstract

The application relates to the technical field of fiber diaphragms and a preparation method thereof, and discloses an aromatic polysulfonamide fiber diaphragm and a preparation method thereof. The aromatic polysulfonamide fiber diaphragm can be well applied to the preparation of the aromatic polysulfonamide fiber diaphragm, the structure of the aromatic polysulfonamide fiber diaphragm is reinforced, the aromaticity of the aromatic polysulfonamide fiber diaphragm is released slowly, the softness and continuity of the aromatic smell are improved, and the aromatic polysulfonamide fiber diaphragm comprises a silk solution, a film forming structure, a small hole forming structure and a pressure combining structure. The film forming structure comprises a roller pressing frame, two first driving rollers and two second driving rollers are rotationally connected in the roller pressing frame, a first variable frequency motor and a second variable frequency motor are installed outside the roller pressing frame, the first variable frequency motor is used for synchronous relative rotation driving of the two first driving rollers, the second variable frequency motor is used for synchronous relative rotation driving of the two second driving rollers, the two first driving rollers and the two second driving rollers are used for assisting the roller pressing of the silk solution to form a film, and two uncoiling assemblies are installed on the roller pressing frame.

Description

Technical Field

[0001] This invention relates to the technical field of fiber diaphragms and their preparation methods, specifically to an aromatic polysulfonamide fiber diaphragm and its preparation method. Background Technology

[0002] As is well known, aromatic compounds are hydrocarbons. Historically, a class of substances with aromatic odors obtained from plant gums were called aromatic compounds. Aromatic compounds originally generally referred to hydrocarbon molecules containing at least one benzene ring with a delocalized bond. However, there are examples of modern aromatic compounds that do not contain a benzene ring. All aromatic compounds have "aromatic properties". Aromatic polysulfonamide fiber membranes and their preparation methods are devices and operating methods used in the auxiliary manufacturing of aromatic polysulfonamide fiber membranes.

[0003] A search revealed that Chinese invention patent CN104846473A discloses a blended fiber, yarn, fabric, and product based on aromatic polyamide and polyarylsulfone, and its preparation method. The general description is that the fiber contains 40-98 wt% aromatic polyamide and 2-60 wt% polyarylsulfone, which are mixed. In use, the aromatic polyamide and polyarylsulfone polymers are dissolved in an organic solvent, stirred, and mixed to prepare a 5-30 wt% spinning solution. The spinning solution is then spun into fibers. While the aforementioned prior art can be used to prepare blended fibers in filament or staple fiber form, its applicability for membrane preparation is poor. Summary of the Invention

[0004] (a) Technical problems to be solved

[0005] To address the shortcomings of existing technologies, this invention provides an aromatic polysulfonamide fiber membrane and its preparation method, which is well applicable to the preparation of aromatic polysulfonamide fiber membranes. Furthermore, by employing a composite structure, the aromatic polysulfonamide fiber membrane is structurally reinforced and its aromaticity is released in a sustained manner, thereby improving the softness and persistence of the aromatic scent.

[0006] (II) Technical Solution

[0007] To achieve the above objectives, the present invention provides the following technical solution: a preparation apparatus for an aromatic polysulfonamide fiber membrane, comprising a spinning solution, a film-forming structure, a perforation forming structure, and a pressing structure. The film-forming structure includes a roller press frame, within which two first active rollers and two second active rollers are rotatably connected. A first variable frequency motor and a second variable frequency motor are mounted outside the roller press frame. The first variable frequency motor drives the synchronous relative rotation of the two first active rollers, and the second variable frequency motor drives the synchronous relative rotation of the two second active rollers. Both the two first active rollers and the two second active rollers are used to assist in the rolling and film-forming process of the spinning solution. Two unwinding assemblies are mounted on the roller press frame, and an external auxiliary membrane is mounted on each of the two unwinding assemblies. The perforation forming structure includes a double-mounted frame, on which an upper excitation device is mounted. The laser head and lower laser head are rotatably connected within a double-mounted frame, and two third variable frequency motors are mounted on the double-mounted frame. The two third variable frequency motors are used to drive the rotation of the two support rollers, and the two support rollers are matched with two outer auxiliary films. Each support roller is provided with multiple through-slit holes that match the upper and lower laser heads, respectively. The pressing structure includes a pressing frame, within which two guide rollers, two bonding rollers, and two pressing rollers are rotatably connected. A first servo motor and a second servo motor are mounted outside the pressing frame, and the first and second servo motors are used to rotate the two pressing rollers, respectively. Each pressing roller is provided with multiple raised points. An electromagnetic heating component is installed inside the pressing frame for auxiliary heating of the multiple raised points. A winding component is provided at the left end of the pressing frame.

[0008] Preferably, the winding assembly includes a winding shaft frame and a winding motor, and both unwinding assemblies include an unwinding shaft frame and an unwinding motor. The winding shaft frame is rotatably connected to the pressing frame, and the winding motor is mounted on the pressing frame and is used to drive the rotation of the winding shaft frame. Both unwinding motors are mounted on the rolling frame, and both unwinding shaft frames are rotatably connected inside the rolling frame. The two unwinding motors are used to drive the rotation of the two unwinding shaft frames respectively. The unwinding shaft frame has two first sliding grooves, and the pressing frame has a second sliding groove. Adjusting limiters are installed in both first sliding grooves and one second sliding groove. The three installation adjusting limiters are respectively matched with the winding shaft frame and the two unwinding shaft frames.

[0009] Preferably, each of the three adjusting limiting components includes a sliding frame and a limiting cylinder. The three sliding frames are slidably connected in one second sliding groove and two first sliding grooves, respectively. The three limiting cylinders are respectively matched with the winding shaft frame and two unwinding shaft frames. The three limiting cylinders are slidably connected in the three sliding frames. Each of the three sliding frames is equipped with an operation reset system, and the three operation reset systems are respectively matched with the three limiting cylinders.

[0010] Preferably, each of the three operation reset systems includes a straight horizontal plate and an arc plate. The three straight horizontal plates are respectively fixedly connected to the three sliding frames. Each of the three straight horizontal plates is fixedly connected to an elastic spring. The three elastic springs are respectively fixedly connected to the three arc plates. The three arc plates are respectively fixedly connected to the three limiting cylinders.

[0011] Preferably, each of the three limiting cylinders has a groove, and the three straight and horizontal plates are slidably fitted into the three grooves respectively.

[0012] Preferably, the electromagnetic heating assembly includes two rotating frames, both of which are rotatably connected within the pressing frame. Each of the two pressing rollers is equipped with a drive gear, and each of the two rotating frames is equipped with a driven gear. The driven gears mesh with the two drive gears respectively. Each of the two rotating frames is equipped with a plurality of electromagnetic induction heating spiral rings, which are used for auxiliary heating of a plurality of protruding points.

[0013] Preferably, the drive gear is provided with multiple same-speed drive sections and multiple differential drive sections, and the multiple same-speed drive sections are arranged alternately with the multiple differential drive sections at intervals. The driven gear is provided with a same-speed driven section that matches the same-speed drive section and a differential driven section that matches the differential drive section.

[0014] Preferably, the double-mounted frame is fixedly connected to a first partition plate and a second partition plate. Each of the first partition plate and the second partition plate is provided with two support frames. Each of the four support frames is fixedly connected with a spring. The four springs are respectively fixedly connected to the first partition plate and the second partition plate.

[0015] Preferably, both the upper laser head and the lower laser head have front-to-back displacement drive adjustment function and up-to-down displacement drive adjustment function.

[0016] A method for preparing an aromatic polysulfonamide fiber membrane includes the following steps:

[0017] S1. When using it, first complete the installation of the preparation device for the aromatic polysulfonamide fiber diaphragm, and complete the electrical installation of the first variable frequency motor, the second variable frequency motor, the third variable frequency motor, the first servo motor, the second servo motor, the winding motor, the unwinding motor and the electromagnetic heating assembly. Also, install the first active roller and the second active roller with the fabric structure that matches the spinning solution. At the same time, install lasers for both the upper laser head and the lower laser head.

[0018] S2. Next, connect the power supplies to the first variable frequency motor, the second variable frequency motor, the first servo motor, the second servo motor, the winding motor, the unwinding motor, the electromagnetic heating components, and the laser. The first variable frequency motor is powered on to achieve relative synchronous rotation of the two first active rollers. The second variable frequency motor is powered on to achieve relative synchronous rotation of the two second active rollers. The two third variable frequency motors are powered on to drive the rotation of the two support rollers. The first servo motor and the second servo motor are powered on to drive the rotation of the two pressure rollers, that is, the two pressure rollers rotate relatively synchronously. The winding motor is powered on to drive the rotation of the winding shaft frame. The two unwinding motors are powered on to drive the rotation of the two unwinding shaft frames. The two electromagnetic heating components are powered on to form an electromagnetic heating space. The laser is powered on to supply the laser beams to the upper and lower laser heads.

[0019] S3. An external auxiliary film is installed on both unwinding shafts. The spinning solution is evenly distributed on the two first active rollers and the two second active rollers through the fabric structure. The rotation of the two first active rollers forms a roll-pressed film by the spinning solution distributed between the two first active rollers. The film squeezed by the two first active rollers is led out from below the two first active rollers and introduced above the two second active rollers, so that it passes through the two second active rollers to form a secondary roll-press. During the secondary roll-press, the spinning solution distributed between the two second active rollers will provide secondary fabrication to the film formed by the roll-press of the two first main pressure rollers to improve the integrity of the mold.

[0020] S4. The film body rolled out from below the two second active rollers passes through the space between the first and second partition plates, and passes through the two guide rollers, two bonding rollers, two rotating frames and two pressing rollers in sequence from right to left, and is finally wound on the winding frame. The two outer auxiliary films are respectively put on the area between the laser head and the first partition plate and the area between the lower laser head and the second partition plate. Then, the two outer auxiliary films are respectively bonded to the upper and lower surfaces of the film body to form a bond. The matching mold body passes through the two guide rollers, two bonding rollers, two rotating frames and two pressing rollers in sequence, and is finally wound synchronously on the winding frame relative to the winding frame.

[0021] S5. The fabric for continuously forming the spinning solution for the two first active rollers and the two second active rollers is continuously prepared to realize the continuous preparation of the film. With the rotation of the winding frame, the film and the two outer auxiliary films are synchronously wound and stored. Due to the continuous storage of the film and the two outer auxiliary films on the winding frame, the mold and the two outer auxiliary films will move synchronously from right to left in sequence. With the movement of the two outer auxiliary films, the third frequency conversion motor works to realize the rotation of the support roller. The rotation of the support roller is matched with the corresponding outer auxiliary film to form synchronous rotation. When a certain through hole on the rotating support roller rotates to the vertical state, the corresponding upper laser head and lower laser head emit laser beams to burn and open the small hole of the outer auxiliary film that has passed through the through hole.

[0022] S6. The two outer auxiliary films are first guided by the corresponding guide rollers and then pressed and bonded to the film body by the corresponding bonding rollers. When the entire film body and the two outer auxiliary films pass through the two pressure rollers, the protrusions on the pressure rollers will form a compression and hot-welding of the film body and the two outer auxiliary films. With the rotation of the pressure rollers, the electromagnetic induction heating spiral ring will preheat the protrusions that are about to come into contact with the outer auxiliary films for compression, so as to facilitate the continuous hot-welding of the film body and the two outer auxiliary films.

[0023] (III) Beneficial Effects

[0024] Compared with the prior art, the present invention provides an aromatic polysulfonamide fiber membrane and its preparation method, which has the following characteristics:

[0025] Beneficial effects:

[0026] 1. In this invention, by configuring the film-forming structure, an auxiliary roller pressing film is formed for the spinning solution, so as to facilitate the subsequent overall composite molding of the aromatic polysulfonamide fiber diaphragm.

[0027] 2. In this invention, the use of a pressing structure facilitates the final composite molding of the mold body formed by pressing the spinning solution with the two outer auxiliary membranes, thereby forming the overall preparation of the aromatic polysulfonamide fiber diaphragm and achieving structural reinforcement of the aromatic polysulfonamide fiber diaphragm.

[0028] 3. In this invention, the use of a small-hole forming structure facilitates the opening of small holes on the two outer auxiliary membranes, enabling partial communication between the membrane formed by the rolling of the spinning solution pressed between the two outer auxiliary membranes and the outside world, thereby forming a sustained release of the aromaticity of the aromatic polysulfonamide fiber membrane and improving the softness and persistence of the aromatic scent. Attached Figure Description

[0029] Figure 1 This is a three-dimensional structural diagram of the entire invention;

[0030] Figure 2This is a three-dimensional structural diagram of the dual-mount frame, upper laser head, and lower laser head of the present invention.

[0031] Figure 3 This is a three-dimensional structural diagram of the first partition plate, support frame, and spring of the present invention.

[0032] Figure 4 This is a three-dimensional structural diagram showing the combination of the straight horizontal plate, the arc plate, and the elastic spring of the present invention.

[0033] Figure 5 This is a three-dimensional structural diagram of the entire invention from another angle;

[0034] Figure 6 For the present invention Figure 5 A magnified schematic diagram of the partial structure at point A in the middle;

[0035] Figure 7 For the present invention Figure 5 A magnified schematic diagram of the local structure at point B;

[0036] Figure 8 For the present invention Figure 5 A magnified schematic diagram of the structure at point C in the middle;

[0037] Figure 9 This is a three-dimensional structural diagram showing the disassembled arrangement of the sliding frame, limiting cylinder, and straight and horizontal plates of the present invention.

[0038] Figure 10 This is a three-dimensional structural diagram of the interaction between the rotating and driven gears and the electromagnetic induction heating spiral ring of the present invention;

[0039] Figure 11 This is a three-dimensional structural diagram of the cooperating mechanism of the winding shaft frame, unwinding shaft frame, and rotating frame of the present invention;

[0040] Figure 12 For the present invention Figure 11 A magnified schematic diagram of the structure at point C.

[0041] In the diagram: 1. Roller press frame; 2. First drive roller; 3. Second drive roller; 4. Double-mounted frame; 5. Upper laser head; 6. Lower laser head; 7. Outer auxiliary film; 8. Support roller; 9. Through-slit hole; 10. Pressing frame; 11. Guide roller; 12. Bonding roller; 13. Pressing roller; 14. Raised point; 15. Rewinding frame; 16. Unwinding frame; 17. Sliding frame; 18. Limiting cylinder; 19. Straight horizontal plate; 20. Arc plate; 21. Elastic spring; 22. Groove; 23. Rotating frame; 24. Drive gear; 25. Driven gear; 26. Electromagnetic induction heating spiral ring; 27. Same-speed drive section; 28. Differential drive section; 29. ​​Same-speed driven section; 30. Differential driven section; 31. First partition plate; 32. Second partition plate; 33. Support frame; 34. Spring. Detailed Implementation

[0042] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0043] Example

[0044] Please see Figure 1-12 An apparatus for preparing an aromatic polysulfonamide fiber membrane includes a spinning solution, a film-forming structure, a pore-forming structure, and a pressing structure. The film-forming structure includes a roller press frame 1, within which two first drive rollers 2 and two second drive rollers 3 are rotatably connected. A first variable frequency motor and a second variable frequency motor are mounted outside the roller press frame 1. The first variable frequency motor drives the synchronous relative rotation of the two first drive rollers 2, and the second variable frequency motor drives the synchronous relative rotation of the two second drive rollers 3. Both are used for auxiliary rolling film formation of spinning solutions. Through the configuration of the film-forming structure, auxiliary rolling film formation of the spinning solution is formed to facilitate the subsequent overall composite molding of aromatic polysulfonamide fiber separators. Two unwinding assemblies are installed on the rolling frame 1, and each unwinding assembly is equipped with an outer auxiliary film 7. The small-hole forming structure includes a double-mounted frame 4, on which an upper laser head 5 and a lower laser head 6 are installed. Two supporting rollers 8 are rotatably connected inside the double-mounted frame 4. Two third-frequency variable-frequency motors are installed on the double-mounted frame 4, and the two third-frequency variable-frequency motors are respectively used for the two supporting rollers. Driven by the rotation of roller 8, two supporting rollers 8 are respectively matched with two outer auxiliary membranes 7. Each of the two supporting rollers 8 is provided with multiple through holes 9 that match the upper laser head 5 and the lower laser head 6 respectively. Through the cooperation of the small hole forming structure, it is convenient to open the small holes on the two outer auxiliary membranes 7, so as to realize the partial communication between the membrane formed by the roller pressing of the spinning solution between the two outer auxiliary membranes 7 and the outside world, forming the slow release of the aromaticity of the aromatic polysulfonamide fiber membrane, improving the softness and persistence of the aromatic scent. The pressing structure includes a pressing frame 10, and the pressing frame 10 contains... The rotating connection includes two guide rollers 11, two bonding rollers 12, and two pressing rollers 13. A first servo motor and a second servo motor are mounted on the outside of the pressing frame 10. The first servo motor and the second servo motor are respectively used for the rotation of the two pressing rollers 13. Multiple protrusions 14 are provided on both pressing rollers 13. Through the configuration of the pressing structure, it is convenient to finally composite the mold body formed by pressing the spinning solution with the two outer auxiliary films 7 to form the whole aromatic polysulfonamide fiber diaphragm, thereby realizing the structural reinforcement of the aromatic polysulfonamide fiber diaphragm.

[0045] Furthermore, an electromagnetic heating assembly is installed inside the pressure frame 10. This assembly includes two rotating frames 23, both rotatably connected within the pressure frame 10. Each of the two pressure rollers 13 is equipped with a drive gear 24, and each of the two rotating frames 23 is equipped with a driven gear 25. The driven gears 25 mesh with the two drive gears 24. Multiple electromagnetic induction heating spiral rings 26 are installed within each of the rotating frames 23. These spiral rings 26 are used for auxiliary heating of multiple protruding points 14. The electromagnetic heating assembly is used for auxiliary heating of the multiple protruding points 14. The drive gears 24 are provided with multiple same-speed drive sections 27 and multiple differential drive sections 28. The same-speed drive sections 27 and differential drive sections 28 are arranged alternately. The driven gears 25 are provided with a same-speed driven section 29 matching the same-speed drive section 27 and a differential drive section 28 matching the differential drive section 28. The high-speed drive section 28 is matched with the differential driven section 30 to achieve auxiliary heating of the electromagnetic induction heating spiral ring 26 and the multiple rows of protruding points 14 arranged in front and behind on the pressure roller 13. During the relative rotation insertion and relative rotation out process of the multiple protruding points 14 arranged in front and behind and the multiple electromagnetic induction heating spiral rings 26, the auxiliary rotating frame and the pressure roller 13 move at the same speed. After the multiple protruding points 14 arranged in front and behind rotate out of the multiple electromagnetic induction heating spiral rings 26, the auxiliary rotating frame rotates at high speed relative to the pressure roller 13. When the upper and lower rows of protruding points 14 of the pressure roller 13 rotate over, the multiple electromagnetic induction heating spiral rings 26 rotate quickly to the protruding points 14 that have rotated over the upper and lower rows of the pressure roller 13. After that, the auxiliary rotating frame and the pressure roller 13 move at the same speed again, and the electromagnetic induction heating spiral ring 26 assists in heating the multiple rows of protruding points 14 arranged in front and behind on the pressure roller 13.

[0046] It should be further explained that a winding assembly is provided at the left end of the pressing frame 10. The winding assembly includes a winding shaft frame 15 and a winding motor. Both unwinding assemblies include an unwinding shaft frame 16 and an unwinding motor. The winding shaft frame 15 is rotatably connected to the pressing frame 10, and the winding motor is mounted on the pressing frame 10 and is used to drive the rotation of the winding shaft frame 15. Both unwinding motors are mounted on the roller pressing frame 1, and both unwinding shaft frames 16 are rotatably connected inside the roller pressing frame 1. The two unwinding motors are used to drive the rotation of the two unwinding shaft frames 16 respectively, and the two unwinding shaft frames 16 are used for the auxiliary installation of the two outer auxiliary films 7 respectively. The unwinding frame 16 has two first sliding grooves, and the closing frame 10 has a second sliding groove. Adjustable limiting components are installed in both first sliding grooves and one second sliding groove. These three adjusting limiting components are respectively matched with the closing frame 15 and the two unwinding frames 16. Each of the three adjusting limiting components includes a sliding frame 17 and a limiting cylinder 18. The three sliding frames 17 are slidably connected to one second sliding groove and one of the two first sliding grooves, respectively. The three limiting cylinders 18 are respectively matched with the closing frame 15 and the two unwinding frames 16, and are slidably connected to the three sliding frames 17, respectively. Each of the three sliding frames 17 is equipped with an operation reset system, which is matched with three limiting cylinders 18. Each of the three operation reset systems includes a straight horizontal plate 19 and an arc-shaped plate 20. The three straight horizontal plates 19 are fixedly connected to the three sliding frames 17. Each of the three straight horizontal plates 19 is fixedly connected with an elastic spring 21, which is fixedly connected to the three arc-shaped plates 20. The three arc-shaped plates 20 are fixedly connected to the three limiting cylinders 18. Each of the three limiting cylinders 18 has a groove 22, and the three straight horizontal plates 19 slide within the three grooves 22 to facilitate movement between the limiting cylinders 18 and the sliding frames 17. Due to the relative position limitations, a first partition plate 31 and a second partition plate 32 are fixedly connected inside the double frame 4. Each of the first partition plate 31 and the second partition plate 32 is provided with two support frames 33. Springs 34 are fixedly connected to each of the four support frames 33. The four springs 34 are fixedly connected to the first partition plate 31 and the second partition plate 32 respectively. Together with the outer auxiliary film 7, the outer auxiliary film 7 is tightened relative to the support roller 8. Both the upper laser head 5 and the lower laser head 6 have front-to-back displacement drive adjustment function and up-to-down displacement drive adjustment function, which enriches the working range of the upper laser head 5 and the lower laser head 6 and improves practicality.

[0047] In this embodiment, the first variable frequency motor, the second variable frequency motor, the first servo motor, the second servo motor, the winding motor, the unwinding motor, the upper laser head 5, and the lower laser head 6 are all commercially available conventional equipment known to those skilled in the art. They can be selected or customized according to actual needs. In this patent, we only use them without improving their structure and function. Their setting method, installation method, and electrical connection method can be easily explained by those skilled in the art by following the instructions for use. Therefore, we will not elaborate on them here.

[0048] In summary, the preparation method of the aromatic polysulfonamide fiber diaphragm includes the following steps: First, the installation of the aromatic polysulfonamide fiber diaphragm preparation device is completed, along with the electrical installation of the first variable frequency motor, second variable frequency motor, third variable frequency motor, first servo motor, second servo motor, winding motor, unwinding motor, and electromagnetic heating assembly. The first active roller 2 and second active roller 3 are fitted with a fabric structure matching the spinning solution. Simultaneously, lasers are installed on both the upper laser head 5 and the lower laser head 6. Then, the power supplies to the first variable frequency motor, second variable frequency motor, first servo motor, second servo motor, winding motor, unwinding motor, electromagnetic heating assembly, and lasers are connected. The first variable frequency motor, when powered on, enables the relative synchronous rotation of the two first active rollers 2. The second variable frequency motor, when powered on, enables the relative synchronous rotation of the two second active rollers 3. The two third variable frequency motors drive the rotation of the two supporting rollers 8, respectively. The first servo motor and the second servo motor, when powered on, respectively... The rotation of the two pressure rollers 13 is driven, that is, the two pressure rollers 13 rotate synchronously relative to each other. The winding motor works to drive the rotation of the winding shaft frame 15. The two unwinding motors work to drive the rotation of the two unwinding shaft frames 16 respectively. The two electromagnetic heating components are powered on to form an electromagnetic heating space. The laser is powered on to supply the laser beams of the upper laser head 5 and the lower laser head 6. An outer auxiliary film 7 is installed on both unwinding shaft frames 16. The spinning solution is evenly distributed on the two first active rollers 2 and the two second active rollers 3 through the fabric structure. The rotation of the two first active rollers 2 forms a roll-pressed film by the spinning solution distributed between the two first active rollers 2. The film squeezed by the two first active rollers 2 is led out from below the two first active rollers 2 and introduced above the two second active rollers 3, so that it passes through the two second active rollers 3 to form a secondary roll-press. During the secondary roll-press, the spinning solution distributed between the two second active rollers 3 will perform secondary fabrication on the film formed by the two first main pressure rollers to improve the integrity of the mold.

[0049] Furthermore, the film, rolled out from below the two second active rollers 3, passes through the space between the first partition plate 31 and the second partition plate 32, and sequentially passes through the two guide rollers 11, the two bonding rollers 12, the two rotating frames 23, and the two pressing rollers 13 from right to left, and is finally wound onto the winding frame 15. Two outer auxiliary films 7 are then respectively applied to the area between the laser head 5 and the first partition plate 31, and to the area between the lower laser head 6 and the second partition plate 32. Next, the two outer auxiliary films 7 are bonded to the upper and lower surfaces of the film to form a bond, and the matching mold sequentially passes through the two guide rollers 11. Two bonding rollers 12, two rotating frames 23, and two pressing rollers 13, along with the final matching mold body, are synchronously wound onto the winding frame 15, continuously forming the fabric for the spinning solution on the two first driving rollers 2 and two second driving rollers 3, thus achieving continuous preparation of the film. With the rotation of the winding frame 15, the film body and the two outer auxiliary films 7 are synchronously wound and stored. Due to the continuous storage of the film body and the two outer auxiliary films 7 on the winding frame 15, the mold body and the two outer auxiliary films 7 move synchronously from right to left in a sequential manner. Accompanying the movement of the two outer auxiliary films 7 is a third frequency conversion motor. The operation involves rotating the support roller 8, which rotates synchronously with the corresponding outer auxiliary film 7. When a through-hole 9 on the rotating support roller 8 rotates to an upright position, the corresponding upper laser head 5 and lower laser head 6 emit laser beams to burn and open small holes in the outer auxiliary film 7 that moves through the through-hole 9. The two outer auxiliary films 7 are first guided by the corresponding guide roller 11 and then pressed and bonded to the film body by the corresponding bonding roller 12. After the entire film body and the two outer auxiliary films 7 pass through the two pressure rollers 13, the protrusions 14 on the pressure rollers 13 will press against the film body and the two outer auxiliary films. The membrane 7 is formed by extrusion and hot-stamping. With the rotation of the pressure roller, the electromagnetic induction heating spiral ring 26 preheats the protruding point 14 that will soon come into contact with the outer auxiliary membrane 7 for extrusion, so as to facilitate the continuous hot-stamping of the whole membrane body and the two outer auxiliary membranes 7. The specific preparation of the spinning solution is as follows: select fibers containing 40-98wt% aromatic polyamide and 2-60wt% polyarylsulfone. The aromatic polyamide and polyarylsulfone are mixed. Dissolve the aromatic polyamide and polyarylsulfone polymer in an organic solvent, stir and mix, and prepare a spinning solution of 5-30wt%.

[0050] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. An apparatus for preparing an aromatic polysulfonamide fiber membrane, comprising a spinning solution, characterized in that, It also includes a film-forming structure, a pinhole forming structure, and a pressing structure. The film-forming structure includes a roller press frame (1), in which two first active rollers (2) and two second active rollers (3) are rotatably connected. A first variable frequency motor and a second variable frequency motor are installed outside the roller press frame (1). The first variable frequency motor is used for synchronous relative rotation drive of the two first active rollers (2), and the second variable frequency motor is used for synchronous relative rotation drive of the two second active rollers (3). Both the two first active rollers (2) and the two second active rollers (3) are used for auxiliary roller pressing film formation of the spinning solution. Two unwinding assemblies are installed on the roller press frame (1), and an outer auxiliary film (7) is installed on each of the two unwinding assemblies. The pinhole forming structure includes a double frame (4), in which an upper laser head (5) and a lower laser head (6) are installed. Two supporting rollers (8) are rotatably connected inside the double frame (4). Two third frequency conversion motors are used to drive the rotation of the two support rollers (8). The two support rollers (8) are matched with the two outer auxiliary films (7). The two support rollers (8) are provided with multiple through holes (9) that are matched with the upper laser head (5) and the lower laser head (6). The pressing structure includes a pressing frame (10). The pressing frame (10) is rotatably connected with two guide rollers (11), two bonding rollers (12) and two pressing rollers (13). The pressing frame (10) is equipped with a first servo motor and a second servo motor. The first servo motor and the second servo motor are used to rotate the two pressing rollers (13). The two pressing rollers (13) are provided with multiple protrusions (14). The pressing frame (10) is equipped with an electromagnetic heating component. The electromagnetic heating component is used for auxiliary heating of the multiple protrusions (14). The left end of the pressing frame (10) is provided with a winding component.

2. The apparatus for preparing an aromatic polysulfonamide fiber diaphragm according to claim 1, characterized in that, The winding assembly includes a winding shaft frame (15) and a winding motor. Both unwinding assemblies include an unwinding shaft frame (16) and an unwinding motor. The winding shaft frame (15) is rotatably connected to the pressing frame (10). The winding motor is mounted on the pressing frame (10) and is used to drive the rotation of the winding shaft frame (15). Both unwinding motors are mounted on the roller pressing frame (1). Both unwinding shaft frames (16) are rotatably connected inside the roller pressing frame (1). The two unwinding motors are used to drive the rotation of the two unwinding shaft frames (16). Two first sliding grooves are provided on the unwinding shaft frame (16). A second sliding groove is provided on the pressing frame (10). Adjustment limiting members are installed in both first sliding grooves and one second sliding groove. The three adjustment limiting members are matched with the winding shaft frame (15) and the two unwinding shaft frames (16) respectively.

3. The apparatus for preparing an aromatic polysulfonamide fiber diaphragm according to claim 2, characterized in that, Each of the three adjusting limit components includes a sliding frame (17) and a limiting cylinder (18). The three sliding frames (17) are slidably connected in a second sliding groove and two first sliding grooves, respectively. The three limiting cylinders (18) are matched with the winding shaft frame (15) and two unwinding shaft frames (16), respectively. The three limiting cylinders (18) are slidably connected in the three sliding frames (17), and each of the three sliding frames (17) is equipped with an operation reset system. The three operation reset systems are matched with the three limiting cylinders (18), respectively.

4. The apparatus for preparing an aromatic polysulfonamide fiber diaphragm according to claim 3, characterized in that, Each of the three operation reset systems includes a straight horizontal plate (19) and an arc plate (20). The three straight horizontal plates (19) are fixedly connected to the three sliding frames (17). Each of the three straight horizontal plates (19) is fixedly connected to an elastic spring (21). The three elastic springs (21) are fixedly connected to the three arc plates (20). The three arc plates (20) are fixedly connected to the three limiting cylinders (18).

5. The apparatus for preparing an aromatic polysulfonamide fiber diaphragm according to claim 4, characterized in that, Each of the three limiting cylinders (18) has a groove (22), and the three straight horizontal plates (19) are respectively slidably fitted in the three grooves (22).

6. The apparatus for preparing an aromatic polysulfonamide fiber diaphragm according to claim 5, characterized in that, The electromagnetic heating assembly includes two rotating frames (23), both of which are rotatably connected to the pressing frame (10). Both pressing rollers (13) are equipped with drive gears (24), and both rotating frames (23) are equipped with driven gears (25). The driven gears (25) mesh with the two drive gears (24) respectively. Both rotating frames (23) are equipped with multiple electromagnetic induction heating spiral rings (26), which are used for auxiliary heating of multiple protruding points (14).

7. The apparatus for preparing an aromatic polysulfonamide fiber diaphragm according to claim 6, characterized in that, The drive gear (24) is provided with multiple same-speed drive sections (27) and multiple differential drive sections (28). The multiple same-speed drive sections (27) are arranged alternately with the multiple differential drive sections (28). The driven gear (25) is provided with a same-speed driven section (29) that matches the same-speed drive section (27) and a differential driven section (30) that matches the differential drive section (28).

8. The apparatus for preparing an aromatic polysulfonamide fiber diaphragm according to claim 7, characterized in that, The double frame (4) is fixedly connected to a first partition plate (31) and a second partition plate (32). The first partition plate (31) and the second partition plate (32) are each provided with two support frames (33). Springs (34) are fixedly connected to the four support frames (33). The four springs (34) are respectively fixedly connected to the first partition plate (31) and the second partition plate (32).

9. The apparatus for preparing an aromatic polysulfonamide fiber diaphragm according to claim 8, characterized in that, Both the upper laser head (5) and the lower laser head (6) have front-to-back displacement drive adjustment function and up-to-down displacement drive adjustment function.

10. A method for preparing an aromatic polysulfonamide fiber diaphragm, characterized in that, The apparatus for preparing an aromatic polysulfonamide fiber membrane according to claim 9 includes the following steps: S1. When using it, first complete the installation of the preparation device for the aromatic polysulfonamide fiber diaphragm, and complete the electrical installation of the first variable frequency motor, the second variable frequency motor, the third variable frequency motor, the first servo motor, the second servo motor, the winding motor, the unwinding motor and the electromagnetic heating assembly. Also, install the first active roller (2) and the second active roller (3) with the fabric structure that matches the spinning solution. At the same time, install lasers for both the upper laser head (5) and the lower laser head (6). S2. Then, the power supply of the first variable frequency motor, the second variable frequency motor, the first servo motor, the second servo motor, the winding motor, the unwinding motor, the electromagnetic heating components and the laser are turned on. The first variable frequency motor is turned on to realize the relative synchronous rotation of the two first active rollers (2). The second variable frequency motor is turned on to realize the relative synchronous rotation of the two second active rollers (3). The two third variable frequency motors are turned on to realize the rotation drive of the two support rollers (8). The first servo motor and the second servo motor are turned on to realize the rotation drive of the two pressure rollers (13), that is, the two pressure rollers (13) rotate relative synchronously. The winding motor is turned on to realize the rotation drive of the winding shaft frame (15). The two unwinding motors are turned on to realize the rotation drive of the two unwinding shaft frames (16). The two electromagnetic heating components are turned on to form an electromagnetic heating space. The laser is turned on to realize the supply of laser beams to the upper laser head (5) and the lower laser head (6). S3. An external auxiliary film (7) is installed on both unwinding shafts (16). The spinning solution is evenly distributed on the two first active rollers (2) and the two second active rollers (3) through the fabric structure. The two first active rollers (2) rotate to roll the spinning solution between the two first active rollers (2) into a film. The film squeezed by the two first active rollers (2) is led out from below the two first active rollers (2) and introduced above the two second active rollers (3) so that it passes through the two second active rollers (3) to form a secondary roll pressing. During the secondary roll pressing process, the spinning solution between the two second active rollers (3) will perform secondary fabrication on the film formed by the roll pressing of the two first active rollers (2) to improve the integrity of the film. S4. The film body rolled out from below the two second active rollers (3) passes through the space between the first partition plate (31) and the second partition plate (32), and passes through the two guide rollers (11), two bonding rollers (12), two rotating frames (23) and two pressing rollers (13) from right to left, and finally winds onto the winding frame (15). The two outer auxiliary films (7) pass through the area between the upper laser head (5) and the first partition plate (31) and the area between the lower laser head (6) and the second partition plate (32), respectively. Then, the two outer auxiliary films (7) are bonded to the upper and lower surfaces of the film body to form a bond, and then pass through the two guide rollers (11), two bonding rollers (12), two rotating frames (23) and two pressing rollers (13) in sequence, and finally wind onto the winding frame (15) synchronously with the rotation of the winding frame (15). S5. The fabric for the spinning solution is continuously formed by the two first active rollers (2) and the two second active rollers (3) to realize the continuous preparation of the membrane. With the rotation of the winding frame (15), the membrane and the two outer auxiliary membranes (7) are synchronously wound and stored. Due to the continuous storage of the membrane and the two outer auxiliary membranes (7) on the winding frame (15), the membrane and the two outer auxiliary membranes (7) will move synchronously from right to left. With the movement of the two outer auxiliary membranes (7), the third variable frequency motor works to realize the rotation of the support roller (8). The rotation of the support roller (8) is matched with the corresponding outer auxiliary membrane (7) to form synchronous rotation. When a certain through hole (9) on the rotating support roller (8) rotates to the vertical state, the corresponding upper laser head (5) and lower laser head (6) emit laser beams to burn and open the small hole formed by the outer auxiliary membrane (7) passing through the through hole (9). S6. The two outer auxiliary films (7) are first guided by the corresponding guide rollers (11) and then pressed and bonded to the film body by the corresponding bonding rollers (12). When the whole consisting of one film body and two outer auxiliary films (7) passes through two pressure rollers (13), the protrusions (14) on the pressure rollers (13) will form a pressing and hot-welding of the whole consisting of one film body and two outer auxiliary films (7). With the rotation of the pressure rollers (13), the electromagnetic induction heating spiral ring (26) preheats the protrusions (14) that are about to come into contact with the outer auxiliary films (7) to facilitate the continuous hot-welding of the whole consisting of one film body and two outer auxiliary films (7).

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