A method for spinning a spinning solution for manufacturing chitosan fiber

Abstract

The invention discloses a spinning solution spinning method for manufacturing chitosan fiber, comprising the following steps: S1: charging the chitosan spinning solution through a high-voltage power supply, and then delivering the chitosan spinning solution in the liquid storage tank to the spinneret through a delivery pump for spraying; S2: starting the motor on the spinning equipment, and attaching and forming the spinning fiber on the forming cylinder by electrostatic spinning; S3: after the spinning and forming on a single forming cylinder is completed, the spinning forming cylinder is moved into the side frame, and the spinning fiber is taken out through the opening at the top of the side frame, while the forming cylinder in the installation cover continues the spinning operation; S4: repeating the operation of the above step S3, spinning continuously, and cleaning the chitosan solution overflowing from the needle on the spinneret after occasional shutdown for maintenance. The spinning solution spinning method for manufacturing chitosan fiber can spin for a long time without stopping the machine, and can clean the spinning solution overflowing from the needle to avoid clogging.

Description

Technical Field

[0001] The invention relates to the technical field of chitosan fiber spinning, in particular to a spinning solution spinning method for manufacturing chitosan fiber. Background Art

[0002] Chitosan is an important derivative of chitin, which is widely found in the shells of shrimps, crabs, insects and the cell walls of algae. Chitosan fiber prepared with chitosan as raw material has the effects of antibacterial, hemostasis, and promotion of wound healing. It belongs to a new nanofiber material. The conventional methods for preparing chitosan fiber are wet spinning, dry-wet spinning and electrospinning. Among them, electrospinning is to use a jet device to spray charged chitosan solution under the action of an external electric field. The polymer droplets held at the nozzle by surface tension accumulate charges on the surface under the induction of the electric field, and are subjected to a surface tension. The electric field force is opposite to the tension direction. When the electric field gradually increases, the droplet at the nozzle is elongated from a sphere to a cone, forming the so-called "Taylor cone". When the electric field strength increases to a critical value, the electric field force will overcome the surface tension of the liquid and spray out from the "Taylor cone". The jet is rapidly stretched under the action of the high electric field, and the solvent also evaporates rapidly, eventually forming fibers with a diameter of nanometers, which are randomly scattered on the collection device. The overall molding process is stable and convenient, and is widely used. However, the existing chitosan fiber electrospinning method has the following problems when used:

[0003] In order to improve the uniformity of fiber forming, the existing chitosan fiber electrospinning method uses a roller for collection and forming. After the thickness reaches a certain level, the roller needs to be disassembled to take out the fiber, and the machine needs to be stopped during this process. In the above conventional spinning method, it is not convenient to achieve non-stop forming and taking out operations. Since the chitosan solution has a certain viscosity and fluidity, the chitosan solution at the end of the needle is prone to overflow and coagulation when the roller is frequently stopped for taking out and replacing. The chitosan solution here can no longer be spun and needs to be cleaned, resulting in a waste of chitosan solution. At the same time, it is easy to cause the needle to be blocked, affecting the subsequent forming effect. The chitosan solution condenses at the needle, and frequent subsequent processing is likely to cause damage to the needle. The damage and replacement of the needle waste resources.

[0004] In view of the above problems, it is urgent to carry out innovative design based on the original chitosan fiber electrospinning method. Summary of the invention

[0005] The object of the present invention is to provide a spinning solution spinning method for manufacturing chitosan fibers, so as to solve the problem that the existing chitosan fiber electrospinning method proposed in the above background technology is not convenient to realize non-stop molding and removal operations. The technical solution of the present invention aims at the technical problem that the existing technical solution is too single, and provides a solution that is significantly different from the existing technology.

[0006] To achieve the above object, the present invention provides the following technical solution: a method for spinning a spinning solution for manufacturing chitosan fiber, comprising the following steps:

[0007] S1: pouring the prepared chitosan spinning solution into a liquid storage tank on the spinning equipment, charging the chitosan spinning solution through a high-voltage power supply, and then delivering the chitosan spinning solution in the liquid storage tank to the spinneret through a delivery pump for spraying;

[0008] S2: Start the motor on the spinning device, the motor drives the forming cylinder to rotate on the mounting cylinder through the driving gear, the transmission gear and the gear ring, and the high-voltage power supply charges the forming cylinder through the positioning rod, forming a high-voltage electric field inside the mounting cover, and the spinning fiber is attached to the forming cylinder through the electrostatic spinning method;

[0009] S3: After the spinning and forming on a single forming cylinder is completed, the handle is turned to drive the installation cylinder to move horizontally through the screw, so that the spinning-finished forming cylinder moves into the side frame, and along with the opening of the baffle bar, the spun fiber is taken out through the opening at the top of the side frame, while the forming cylinder in the installation cover continues to perform the spinning operation;

[0010] S4: Repeat the operation of step S3 above to carry out uninterrupted spinning. After occasional shutdown for maintenance, the movement of the installation cylinder drives the movement of the processing head, and the chitosan solution overflowing from the needle on the spinneret is cleaned by using a sponge wipe in conjunction with the suction of the first air port and the second air port.

[0011] Preferably, the spinning equipment in step S1 comprises a base, a mounting cover is provided on the top of the base, a mounting frame is provided on the bottom of the mounting cover, a spinneret is installed on the mounting frame, a liquid storage tank is fixed on the outside of the mounting cover, and the liquid storage tank is connected to the spinneret via a delivery pump;

[0012] Also includes:

[0013] A side frame, wherein the side frame is connected to both sides of the mounting cover, and the connection between the mounting cover and the side frame is a hollow structure design, and a handle is installed on the outer end bearing of the side frame, and the top of the side frame is an open structure, one end of the handle is connected to a screw, and the screw bearing is installed on the inner walls of the two side frames, and a mounting cylinder is threadedly sleeved on the screw, a positioning rod is installed through the mounting cylinder, and the positioning rod is fixed on the inner walls of the two side frames, and a high-voltage power supply is installed at the bottom of the side frame, and two electrodes of the high-voltage power supply are respectively connected to the liquid storage tank and the positioning rod, two forming cylinders are provided on the upper limit rotation sleeve of the mounting cylinder, and retaining rings are fixedly sleeved at both ends of the forming cylinder, and a gear ring is provided at the rightmost end of the forming cylinder, a transmission gear is meshed at the top of the gear ring, and an elastic telescopic rod is connected to one side of the transmission gear, and the bearing of the elastic telescopic rod is installed on the inner wall of the mounting cover, a motor is embedded and fixed at a protruding position of the inner wall of the mounting cover, and a driving gear is connected to the output end of the motor, and the driving gear and the transmission gear are meshed with each other, and the driving gear is located at the top of the transmission gear;

[0014] The cam is secured to the bottom of the two guide rails and is located adjacent to the top of the two guide rails, and the cam is secured to the bottom of the two guide rails and is located adjacent to the top of the two guide rails.

[0015] Preferably, the molding cylinder slides laterally in the mounting cover and the two side frames through a screw under the action of the positioning rod, and protruding structures for limiting the movable position of the mounting cylinder are provided at both ends of the positioning rod. The left and right movements of the two molding cylinders can perform fiber molding of one molding cylinder and take out the fibers from the other molding cylinder, thereby realizing non-stop operation.

[0016] Preferably, the transmission gear slides laterally elastically on the inner wall of the mounting cover via an elastic telescopic rod, and both ends of the serrations on the transmission gear and the gear ring are designed with inclined structures, and the movement of the two forming cylinders enables both gear rings to mesh with the transmission gear.

[0017] Preferably, a receiving and releasing groove is provided on the side wall at the top opening of the side frame, and a baffle is slidably installed in the receiving and releasing groove, and the inner wall of the arc-shaped baffle is a serrated structure meshing with a toothed roller, and the toothed roller embedded bearing is installed on the top of the side frame. At the same time, the toothed roller is connected to the handle through a belt. When the handle is rotated, the toothed roller is driven to rotate, and then the baffle is driven to slide, which facilitates the automatic opening and closing of the top opening of the side frame and facilitates the removal of the molded fiber.

[0018] Preferably, the end of the moving rod is spherical and slides in the guide groove, and the top view cross section of the guide groove is wavy. When the moving rod slides in the guide groove, it is guided by the guide groove so that the moving rod can move forward and backward during translation.

[0019] Preferably, the processing head is detachably mounted on the processing tube via a locking rod and a locking groove, and the position of the processing head corresponds to the position of the needle on the spinneret. When the needle needs to be cleaned, the processing head can be mounted on the processing tube.

[0020] Preferably, the one-way sheet is made of rubber material, and is designed as an arc-shaped structure that is in contact with the inner walls of the first air port and the second air port, and the one-way sheet cooperates with the bracket rod so that the first air port and the second air port are one-way air inlet and outlet structures, and the first air port is a one-way air inlet structure in the processing head, and the second air port is a one-way air outlet structure in the processing tube.

[0021] Compared with the prior art, the present invention has the following beneficial effects:

[0022] 1. The present invention is provided with a non-stop switching mechanism, and is provided with two forming cylinders. The rotation of the forming cylinders is driven by a motor, a driving gear, a transmission gear and a gear ring, and the high-voltage power supply is coordinated with the live operation, and the spinning operation of the chitosan solution is realized through the internal high-voltage electric field. The left and right positions of the two forming cylinders are switched and rotated independently, so that when one forming cylinder is spinning, the chitosan fiber can be manually taken out by the other forming cylinder, so that there is always one forming cylinder working, and continuous spinning operation can be realized for a long time. There is no need to take out the forming cylinder and the chitosan fiber thereon every time the machine is stopped, and the phenomenon of chitosan solution overflow and condensation at the needle of the spinneret can be effectively avoided, so as to avoid the problem of frequent clogging of the needle due to frequent shutdowns. On the one hand, the spinning efficiency is improved, the loss of chitosan fiber is reduced, and energy is saved. At the same time, the frequent cleaning of the needle is also prone to damage, which wastes needle resources and increases the cost of subsequent treatment of the needle. At the same time, the subsequent treatment of too many needles is prone to adverse effects on the environment.

[0023] 2. The present invention is provided with a selective needle cleaning structure. In the spinning method, a relatively long period of non-stop operation can be achieved. However, the equipment will still be shut down for maintenance of the equipment and the completion of a batch of products. At this time, overflow and condensation will occur at the needle. The position of the processing head can be moved. When the position of the forming cylinder is manually switched, the reciprocating movement of the moving rod is coordinated with the first and second air ports for one-way air inlet and outlet, so that the processing head can generate suction at the needle position, and the chitosan solution at the needle can be sucked out and cleaned by wiping with a sponge to avoid subsequent blockage. Compared with the traditional technology that requires shutting down once for each fiber preparation, the overflow and condensation at the needle are greatly reduced in the cleaning of the needle in this process. At the same time, the number of times the needle is cleaned is also greatly reduced, thereby greatly improving the service life of the needle and reducing the loss of the needle and the impact of subsequent processing on the environment. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 It is a schematic diagram of the front cross-section structure of the present invention;

[0025] Figure 2 It is a schematic diagram of the side section structure of the present invention;

[0026] Figure 3 It is a schematic diagram of the side cross-section structure of the mounting tube of the present invention;

[0027] Figure 4 It is a schematic diagram of the top view of the transmission gear structure of the present invention;

[0028] Figure 5 It is a schematic diagram of the side section structure of the baffle bar of the present invention;

[0029] Figure 6 For the present invention Figure 1 The enlarged structural diagram at A in the middle;

[0030] Figure 7 It is a schematic diagram of the cross-sectional structure of the guide groove of the present invention from top view;

[0031] Figure 8 For the present invention Figure 1 Enlarged structural diagram at B in the middle.

[0032] In the figure: 1. base; 2. mounting cover; 3. mounting frame; 4. spinneret; 5. liquid storage tank; 6. handle; 7. screw; 8. mounting cylinder; 9. positioning rod; 10. high voltage power supply; 11. forming cylinder; 12. retaining ring; 13. gear ring; 14. transmission gear; 15. elastic telescopic rod; 16. motor; 17. driving gear; 18. side frame; 19. gear roller; 20. storage groove; 21. retaining bar; 22. mounting sleeve; 23. processing tube; 24. moving rod; 241. piston disc; 25. guide groove; 26. guide rod; 27. processing head; 28. sponge; 30. bracket rod; 31. one-way sheet; 32. locking rod; 33. locking groove. DETAILED DESCRIPTION

[0033] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0034] See also Figure 1-8 The present invention provides a technical solution: a spinning method for manufacturing chitosan fiber, a base 1, a mounting cover 2, a mounting frame 3, a spinneret 4, a liquid storage tank 5, a handle 6, a screw 7, a mounting cylinder 8, a positioning rod 9, a high-voltage power supply 10, a forming cylinder 11, a retaining ring 12, a gear ring 13, a transmission gear 14, an elastic telescopic rod 15, a motor 16, a driving gear 17, a side frame 18, a gear roller 19, a retractable groove 20, a retaining bar 21, a mounting sleeve 22, a processing tube 23, a moving rod 24, a piston disc 241, a guide groove 25, a guide rod 26, a processing head 27, a sponge 28, a support rod 30, a one-way sheet 31, a locking rod 32 and a locking groove 33; Example

[0035] See also Figure 1-5 , including the following steps:

[0036] S1: pouring the prepared chitosan spinning solution into the liquid storage tank 5 on the spinning equipment, charging the chitosan spinning solution through the high voltage power supply 10, and then delivering the chitosan spinning solution in the liquid storage tank 5 to the spinneret 4 for spraying through the delivery pump;

[0037] S2: Start the motor 16 on the spinning device, the motor 16 drives the forming cylinder 11 to rotate on the mounting cylinder 8 through the driving gear 17, the transmission gear 14 and the gear ring 13, and the high-voltage power supply 10 charges the forming cylinder 11 through the positioning rod 9, so as to form a high-voltage electric field inside the mounting cover 2, so that the spinning fibers are attached to the forming cylinder 11 by electrostatic spinning;

[0038] S3: After the spinning and forming on a single forming cylinder 11 is completed, the handle 6 is turned to drive the installation cylinder 8 to move horizontally through the screw 7, so that the forming cylinder 11 after the spinning is moved into the side frame 18, and along with the opening of the blocking bar 21, the spun fiber is taken out through the opening at the top of the side frame 18, and the forming cylinder 11 in the installation cover 2 continues the spinning operation;

[0039] A mounting cover 2 is provided on the top of the base 1, and a mounting frame 3 is provided on the bottom of the mounting cover 2, and a spinneret 4 is installed on the mounting frame 3, a liquid storage tank 5 is fixed on the outside of the mounting cover 2, and the liquid storage tank 5 is connected to the spinneret 4 through a delivery pump; a side frame 18 is connected to both sides of the mounting cover 2, and the connection between the mounting cover 2 and the side frame 18 is a hollow structure design, and a handle 6 is installed on the outer end bearing of the side frame 18, and the top of the side frame 18 is an open structure, one end of the handle 6 is connected to a screw 7, and the screw 7 bearings are installed on the inner walls of the two side frames 18, and the screw 7 is provided with a threaded sleeve. There is a mounting cylinder 8, a positioning rod 9 is installed through the mounting cylinder 8, and the positioning rod 9 is fixed on the inner wall of the two side frames 18, and a high-voltage power supply 10 is installed at the bottom of the side frame 18, and the two electrodes of the high-voltage power supply 10 are respectively connected to the liquid storage tank 5 and the positioning rod 9, the upper limit rotation sleeve of the mounting cylinder 8 is provided with two forming cylinders 11, and both ends of the forming cylinder 11 are fixedly sleeved with retaining rings 12, and the rightmost end of the forming cylinder 11 is sleeved with a gear ring 13, the top of the gear ring 13 is meshed with a transmission gear 14, and one side of the transmission gear 14 is connected to an elastic telescopic rod 15, and the elastic telescopic rod 11 is provided with a gear ring 13, and the gear ring 13 is meshed with a transmission gear 14. The transmission gear 14 is connected to a side of the transmission gear 14. The bearing is mounted on the inner wall of the mounting cover 2, and a motor 16 is embedded and fixed at a protruding position of the inner wall of the mounting cover 2, and the output end of the motor 16 is connected to a driving gear 17, and the driving gear 17 and the transmission gear 14 are meshed with each other, and the driving gear 17 is located on the top of the transmission gear 14; the forming cylinder 11 slides transversely in the mounting cover 2 and the two side frames 18 through the screw 7 under the action of the positioning rod 9, and the two ends of the positioning rod 9 are provided with a protruding structure for limiting the movable position of the mounting cylinder 8, and the transmission gear 14 slides transversely on the inner wall of the mounting cover 2 through the elastic telescopic rod 15, and the transmission gear 14 slides transversely on the inner wall of the mounting cover 2 through the elastic telescopic rod 15, and the transmission gear 14 slides transversely on the inner wall of the mounting cover 2 through the elastic telescopic rod 15. Both ends of the saw teeth on the moving gear 14 and the gear ring 13 are designed with inclined surface structures. A storage groove 20 is provided on the side wall at the top opening of the side frame 18, and a baffle 21 is slidably installed in the storage groove 20. The inner wall of the arc-shaped baffle 21 is in a sawtooth structure and meshed with a toothed roller 19. The toothed roller 19 is installed on the top of the side frame 18 with an embedded bearing. At the same time, the toothed roller 19 is connected to the handle 6 through a belt. By turning the handle 6, the two forming cylinders 11 are driven to move left and right, so that one forming cylinder 11 can form fibers and the other forming cylinder 11 can take out fibers, thereby realizing non-stop spinning operation. Example

[0040] See also Figure 1 and Figure 6-8After occasional downtime for maintenance, the movement of the mounting cylinder 8 drives the processing head 27 to move, and the chitosan solution overflowing from the needle on the spinneret 4 is cleaned by the sponge wiper 28 in cooperation with the suction force of the first air port and the second air port;

[0041] The mounting sleeve 22 is sleeved in the middle of the mounting cylinder 8, and the mounting sleeve 22 is located between the two molding cylinders 11, and the front end of the mounting sleeve 22 is connected to the processing tube 23, and a moving rod 24 is movably installed in the processing tube 23, and a piston disc 241 is fixed to the front end of the moving rod 24, and the rear end of the moving rod 24 passes through the mounting sleeve 22 and the mounting cylinder 8 and is located in the guide groove 25, and the guide groove 25 is opened at the front side of the guide rod 26, and the guide rod 26 passes through the inside of the mounting cylinder 8, and both ends of the guide rod 26 The processing tube 23 is fixed on the inner walls of the two side frames 18, the front end of the processing tube 23 is sleeved with a processing head 27, and a sponge 28 is fixed on the side wall of the recessed end of the processing head 27, and a first air port is opened in the middle of the processing head 27, and a second air port is opened at the bottom of the processing tube 23 and is located at the front end of the piston plate 241, and the first air port and the second air port are connected to a one-way sheet 31 through a bracket rod 30, and a locking rod 32 is installed vertically through the top of the processing head 27, and the bottom of the locking rod 32 is located in the locking groove 33, and Two locking grooves 33 are provided at the top of the processing tube 23, the end of the moving rod 24 is spherical and slides in the guide groove 25, and the top view cross section of the guide groove 25 is wavy. The processing head 27 is detachably installed between the processing tube 23 through the locking rod 32 and the locking groove 33, and the position of the processing head 27 corresponds to the position of the needle on the spinneret 4. The one-way sheet 31 is made of rubber material, and the one-way sheet 31 is designed as an arc structure and is attached to the inner wall of the first air port and the second air port, and the one-way sheet (31) In conjunction with the support rod (30), the first air port and the second air port are a one-way air inlet and outlet structure, and the first air port is a one-way air inlet structure in the processing head (27), and the second air port is a one-way air outlet structure in the processing tube (23); after long-term use, when the machine needs to be shut down for inspection and repair, the processing head 27 is pushed forward and fixed in conjunction with the locking rod 32 and the locking groove 33, so that when the forming cylinder 11 is moved, the chitosan solution at the end of the needle can be cleaned by the suction force generated in the processing head 27 in conjunction with the sponge 28.

[0042] Working principle: When using the spinning solution spinning method for making chitosan fiber, Figure 1-8In the process, firstly, the chitosan solution is poured into the liquid storage tank 5, the solution is charged by the high-voltage power supply 10, and the solution is delivered to the spinneret 4 by the delivery pump, and is sprayed out by the needle on the spinneret 4, and at the same time, the motor 16 is started, the motor 16 drives the driving gear 17 to rotate, and drives the gear ring 13 to rotate through the transmission gear 14, and then drives the corresponding forming cylinder 11 to rotate on the mounting cylinder 8, and at the same time, the positioning rod 9 is energized by the high-voltage power supply 10, so that the positioning rod 9 charges the forming cylinder 11 through the metal mounting cylinder 8, so that the internal A high voltage electric field is generated, so that the chitosan fibers ejected from the spinneret 4 are formed into fibers on the rotating forming cylinder 11 under the action of the high voltage electric field, and are blocked by the baffle ring 12, so that the fibers are concentrated between the two baffle rings 12. After the forming cylinder 11 has been used for a period of time, the handle 6 on the outside of the side frame 18 is manually turned, and the handle 6 drives the screw 7 to rotate. Under the limiting action of the positioning rod 9, the mounting cylinder 8 moves to the right as a whole, so that the forming cylinder 11 with fibers moves to the right side frame 18. At this time, the left forming cylinder 11 arrives When the spinneret 4 is reached, the gear ring 13 on the left molding cylinder 11 gradually moves to the position of the transmission gear 14. With the use of the elastic telescopic rod 15 and the inclined structure of the serrations of the transmission gear 14 and the gear ring 13, the rotating transmission gear 14 is finally meshed with the gear ring 13, and then the rotation of the left molding cylinder 11 can be driven to perform continuous spinning operation. At the same time, the rotation of the handle 6 can drive the gear roller 19 to rotate, and the baffle 21 on the right side frame 18 is rotated into the storage groove 20, so that the top opening position of the right side frame 18 is opened. The staff can put on gloves and put their hands into the side frame 18 to take out the fibers on the right molding cylinder 11 to achieve non-stop operation. Similarly, after the left molding cylinder 11 has been used for a period of time, the handle 6 is rotated in the opposite direction again to move the left molding cylinder 11 into the left side frame 18. At this time, the opening on the left side frame 18 is opened to take the finished fiber product, and the right molding cylinder 11 reaches the spinneret 4 position for spinning operation. There can be multiple spinnerets 4, depending on the actual situation.

[0043] After regular inspection and repair of the equipment, chitosan fiber overflow and condensation may occur at the needle head of the spinneret 4. At this time, you can manually reach into the side frame 18, pull the locking rod 32 upward, and push the processing head 27 forward, and then insert the locking rod 32 again, so that the locking rod 32 cooperates with the locking groove 33 on the rear side to move and fix the position of the processing head 27. Then turn the handle 6 to adjust the position of the mounting cylinder 8 and the forming cylinder 11 to perform the spinning operation. The mounting cylinder 8 moves on the guide rod 26, driving the mounting sleeve 22 to move, so that the end of the moving rod 24 slides in the guide groove 25. The moving rod 24 is guided by the guide groove 25, so that the moving rod 24 drives the piston disk 241 to slide back and forth in the processing tube 23. When the moving rod 24 moves backward, suction is generated in the processing tube 23. When the processing tube 23 is When the head 27 reaches the needle position of the spinneret 4, the suction force generated drives the one-way sheet 31 inside the first air port in the processing head 27 to bend inward, and then the chitosan solution on the needle is adsorbed by suction, and the needle is cleaned with the wiping action of the sponge 28. At the same time, when the moving rod 24 moves forward, the gas is ejected from the second air port in the processing tube 23. Through the reciprocating movement of the moving rod 24, when the processing head 27 reaches multiple needle positions, the end of the needle is cleaned by wiping and suction. After cleaning, when the forming tube 11 is switched, the position of the processing head 27 can be adjusted by inserting the locking rod 32 into the locking groove 33 at the front end, so that when the subsequent continuous spinning operation is carried out, the processing head 27 will not affect the use of the needle. The processing head 27 can also be disassembled for cleaning.

[0044] The contents not described in detail in this specification belong to the prior art known to the professional and technical personnel in this field. In the description of the present invention, unless otherwise specified, "multiple" means two or more; the orientation or position relationship indicated by the terms "upper", "lower", "left", "right", "inner", "outer", "front end", "rear end", "head", "tail" and the like is based on the orientation or position relationship shown in the drawings, which is only for the convenience of describing the present invention and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation of the present invention. In addition, the terms "first", "second", "third" and the like are only used for descriptive purposes and cannot be understood as indicating or implying relative importance. In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "connected" and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances. Although the present invention has been described in detail with reference to the aforementioned embodiments, it is still possible for those skilled in the art to modify the technical solutions described in the aforementioned embodiments, or to make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A method for spinning a spinning solution for producing chitosan fiber, characterized in that: The following steps are involved: S1: pouring the prepared chitosan spinning solution into a liquid storage tank (5) on the spinning device, charging the chitosan spinning solution through a high voltage power supply (10), and then conveying the chitosan spinning solution in the liquid storage tank (5) to the spinneret (4) for spraying through a delivery pump; S2: starting the motor (16) on the spinning device, the motor (16) drives the forming cylinder (11) to rotate on the mounting cylinder (8) through the driving gear (17), the transmission gear (14) and the gear ring (13), and the high-voltage power supply (10) charges the forming cylinder (11) through the positioning rod (9), thereby forming a high-voltage electric field inside the mounting cover (2), and allowing the spinning fibers to adhere to the forming cylinder (11) and be formed by electrostatic spinning; S3: After spinning and forming on a single forming cylinder (11) is completed, the handle (6) is turned to drive the mounting cylinder (8) to move horizontally through the screw (7), so that the forming cylinder (11) that has completed spinning is moved into the side frame (18), and along with the opening of the blocking bar (21), the spun fibers are taken out through the opening at the top of the side frame (18), while the forming cylinder (11) in the mounting cover (2) continues to perform the spinning operation; S4: Repeat the operation of step S3 above to perform uninterrupted spinning. After occasional shutdown for maintenance, the installation cylinder (8) moves to drive the processing head (27) to move, and the chitosan solution overflowing from the needle on the spinneret (4) is cleaned by the sponge wiper (28) in conjunction with the suction force of the first air port and the second air port; A side frame (18), the side frame (18) being connected to two sides of the mounting cover (2), and the upper limit rotation sleeve of the mounting cylinder (8) being provided with two forming cylinders (11); A receiving groove (20) is provided on the side wall at the top opening of the side frame (18), and a retaining bar (21) is slidably installed in the receiving groove (20), and the inner wall of the arc-shaped retaining bar (21) is in a sawtooth structure and meshes with a toothed roller (19), and an embedded bearing of the toothed roller (19) is installed on the top of the side frame (18), and the toothed roller (19) is connected to the handle (6) through a belt.

2. The method for spinning chitosan fiber according to claim 1, characterized in that: The spinning equipment in step S1 comprises a base (1), a mounting cover (2) is arranged on the top of the base (1), a mounting frame (3) is arranged on the bottom of the mounting cover (2), a spinneret (4) is mounted on the mounting frame (3), a liquid storage tank (5) is fixed on the outside of the mounting cover (2), and the liquid storage tank (5) is connected to the spinneret (4) via a delivery pump; Also includes: The connection between the mounting cover (2) and the side frame (18) is designed as a hollow structure, and the outer end bearing of the side frame (18) is equipped with a handle (6), and the top of the side frame (18) is an open structure, one end of the handle (6) is connected to a screw rod (7), and the screw rod (7) bearing is installed on the inner wall of the two side frames (18), and the screw rod (7) is provided with a mounting tube (8) through the thread sleeve, and a positioning rod (9) is installed in the mounting tube (8), and the positioning rod (9) is fixed on the inner wall of the two side frames (18), and a high-voltage power supply (10) is installed at the bottom of the side frame (18), and two electrodes of the high-voltage power supply (10) are respectively connected to the liquid storage tank (5) and the positioning rod (9). The forming cylinder (11) is connected to the outer wall of the mounting cover (2), and both ends of the forming cylinder (11) are fixedly sleeved with retaining rings (12), and the rightmost end of the forming cylinder (11) is sleeved with a gear ring (13), the top of the gear ring (13) is meshed with a transmission gear (14), and one side of the transmission gear (14) is connected to an elastic telescopic rod (15), and the bearing of the elastic telescopic rod (15) is mounted on the inner wall of the mounting cover (2), and a motor (16) is embedded and fixed at a protruding position of the inner wall of the mounting cover (2), and the output end of the motor (16) is connected to a driving gear (17), and the driving gear (17) and the transmission gear (14) are meshed with each other, and the driving gear (17) is located on the top of the transmission gear (14); The mounting sleeve (22) is sleeved in the middle of the mounting tube (8), and the mounting sleeve (22) is located between the two forming tubes (11). The front end of the mounting sleeve (22) is connected to a processing tube (23). A moving rod (24) is movably installed in the processing tube (23), and a piston disc (241) is fixed to the front end of the moving rod (24). The rear end of the moving rod (24) passes through the mounting sleeve (22) and the mounting tube (8) and is located in a guide groove (25). The guide groove (25) is opened at the front side of the guide rod (26), and the guide rod (26) passes through the inside of the mounting tube (8). The two ends of the guide rod (26) are fixed to the two side On the inner wall of the frame (18), a processing head (27) is sleeved at the front end of the processing tube (23), and a sponge (28) is fixed on the side wall of the recessed portion of the end of the processing head (27), and a first air port is opened in the middle of the processing head (27), and a second air port is opened at the bottom of the processing tube (23) and is located at the front end of the piston plate (241), and a one-way sheet (31) is connected to the first air port and the second air port through a support rod (30), and a locking rod (32) is installed vertically through the top of the processing head (27), and the bottom of the locking rod (32) is located in the locking groove (33), and two locking grooves (33) are opened at the top of the processing tube (23).

3. The method for spinning chitosan fiber according to claim 2, characterized in that: The molding cylinder (11) slides transversely in the mounting cover (2) and the two side frames (18) via the screw rod (7) under the action of the positioning rod (9), and protruding structures for limiting the movable position of the mounting cylinder (8) are provided at both ends of the positioning rod (9).

4. The method for spinning chitosan fiber according to claim 2, characterized in that: The transmission gear (14) slides elastically laterally on the inner wall of the mounting cover (2) via an elastic telescopic rod (15), and both ends of the saw teeth on the transmission gear (14) and the gear ring (13) are designed with inclined surface structures.

5. The method for spinning chitosan fiber according to claim 2, characterized in that: The end of the moving rod (24) is in a spherical structure and slides in the guide groove (25), and the cross-section of the guide groove (25) is in a wavy structure when viewed from above.

6. The method for spinning chitosan fiber according to claim 2, characterized in that: The processing head (27) is detachably mounted on the processing tube (23) via a locking rod (32) and a locking groove (33), and the position of the processing head (27) corresponds to the position of the needle on the spinneret seat (4).

7. The method for spinning chitosan fiber according to claim 2, characterized in that: The one-way sheet (31) is made of rubber material, and is designed as an arc-shaped structure that is in contact with the inner walls of the first air port and the second air port. The one-way sheet (31) cooperates with the support rod (30) so that the first air port and the second air port are one-way air inlet and outlet structures, and the first air port is a one-way air inlet structure in the processing head (27), and the second air port is a one-way air outlet structure in the processing tube (23).

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