Spinning solution anti-solidification mechanism for electrostatic spinning liquid storage device

Abstract

The utility model relates to the technical field of anti-solidification mechanisms, and discloses a spinning solution anti-solidification mechanism for an electrostatic spinning solution storage device, which comprises a support frame, a movable plate and a lifting component, a solution storage barrel is fixedly connected in the support frame, a receiving device for absorbing fibers in the solution storage barrel is arranged at the top of the solution storage barrel, and the lifting component is arranged in the solution storage barrel. The right end of the receiving device is electrically connected with a grounding electrode, the right end of the liquid storage barrel is provided with a constant-current liquid supply device for providing a spinning solution for the liquid storage barrel, the right end of the liquid storage barrel is electrically connected with a high-voltage electrostatic generator, the bottom of the liquid storage barrel is provided with a moving plate, and the bottom of the liquid storage barrel is provided with a lifting assembly for driving the moving plate to ascend and descend. And a first stirring rod and a second stirring rod synchronously rotate in opposite directions, so that the stirring efficiency of the spinning solution in the solution storage barrel is improved, the spinning solution is prevented from being solidified, and the practicability of the device is improved.

Description

Technical Field

[0001] This utility model relates to the technical field of anti-coagulation mechanisms, and in particular to an anti-coagulation mechanism for spinning solutions used in electrospinning liquid storage devices. Background Technology

[0002] Electrospinning is an advanced manufacturing technology that uses a high-voltage electrostatic field to drive polymer solutions or melts to form nanofibers. Its core principle is to overcome the surface tension of the liquid by using an electric field, so that the polymer jet can form continuous fibers with diameters ranging from nanometers to micrometers during the stretching and solidification process. The electrospinning liquid storage device is a core component of electrospinning technology, used to store and stably deliver polymer solutions or melts to the spinning nozzle.

[0003] In the existing technology, due to the high viscosity of some spinning solutions, the solution is prone to solidification during the spinning process. Solidification will destroy the orientation and compactness of the fiber, resulting in voids or cracks inside the fiber, and will also increase the fluctuation of the fiber diameter, forming filaments of uneven thickness, which cannot meet the requirements of high-precision applications. Therefore, it is necessary to improve the anti-solidification mechanism of the spinning solution for electrospinning liquid storage device to solve the above problems. Utility Model Content

[0004] To overcome the problem that some spinning solutions have high viscosity and are prone to solidification during the spinning process, resulting in voids or cracks inside the fibers and increased fluctuations in fiber diameter, which cannot meet the requirements of high-precision applications.

[0005] The technical solution of this utility model is as follows: a mechanism for preventing coagulation of spinning solution in an electrospinning liquid storage device, comprising a support frame, a movable plate, and a lifting assembly. A liquid storage tank is fixedly connected inside the support frame. A receiving device for absorbing fibers inside the liquid storage tank is installed at the top of the tank. A grounding electrode is electrically connected to the right end of the receiving device. A constant current supply device for providing spinning solution to the liquid storage tank is installed at the right end of the tank. A high-voltage electrostatic generator is electrically connected to the right end of the tank. A movable plate is installed at the bottom of the tank, and a lifting assembly for driving the movable plate to move up and down is installed at the bottom of the tank. The component has an L-shaped bracket fixedly connected to the bottom of the movable plate, a sealing ring fixedly connected inside the liquid storage tank, an optical shaft rotatably connected inside the L-shaped bracket, a first support base fixedly connected to the top of the optical shaft, a first stirring rod fixedly connected to the top of the first support base, a groove formed on the top of the first stirring rod, a rotating sleeve rotatably connected inside the movable plate, the rotating sleeve being located inside the sealing ring, the optical shaft rotatably connected inside the rotating sleeve, a second support base fixedly connected to the top of the rotating sleeve, a second stirring rod fixedly connected to the top of the second support base, and a groove formed on the top of the second stirring rod.

[0006] Preferably, four sets of first stirring rods are provided, and the four sets of first stirring rods are symmetrically distributed on the top of the first support.

[0007] Preferably, four sets of second stirring rods are provided, and the four sets of second stirring rods are symmetrically distributed on the top of the second support.

[0008] Preferably, a first motor is fixedly connected to the bottom of the movable plate, a first bevel gear is fixedly connected to the output end of the first motor, a second bevel gear is meshed with the outside of the first bevel gear, the second bevel gear is fixedly connected to the optical shaft, and a third bevel gear is meshed with the outside of the first bevel gear, the third bevel gear is fixedly connected to the rotating sleeve.

[0009] Preferably, the lifting assembly includes a support plate, which is fixedly connected to the inside of a support frame. A second motor is fixedly fixed to the top of the support plate, and a fourth bevel gear is fixedly connected to the output end of the second motor. A fifth bevel gear meshes with the outside of the fourth bevel gear, and a long rod is fixedly connected to the inside of the fifth bevel gear. A semicircular block is fixedly connected to the top of the support plate, and the long rod is rotatably connected to the inside of the semicircular block. A rotating disk is fixedly connected to the long rod, and a fixed rod is fixedly connected to the outside of the rotating disk. A movable bracket is rotatably connected to the fixed rod. A U-shaped base is fixedly connected to the bottom of the movable plate, and the end of the movable bracket away from the fixed rod is rotatably connected to the inside of the U-shaped base. A limit rod is fixedly connected to the bottom of the liquid storage tank, and the movable plate is slidably connected to the limit rod. A limit plate is fixedly connected to the bottom of the limit rod.

[0010] Preferably, two sets of rotating disks, fixed rods, movable supports, and U-shaped bases are provided, with the two sets of rotating disks, fixed rods, movable supports, and U-shaped bases symmetrically distributed at the bottom of the movable plate.

[0011] Preferably, two sets of limiting rods and limiting discs are provided, and the two sets of limiting rods and limiting discs are symmetrically distributed at the bottom of the liquid storage tank.

[0012] The beneficial effects of this invention are as follows: Compared to some spinning solutions with high viscosity, which are prone to solidification during spinning, the synchronous counter-rotation of the first and second stirring rods improves the stirring efficiency of the spinning solution inside the storage tank, preventing solidification and enhancing the practicality of the device. This also avoids the problems of voids or cracks inside the fibers, which would increase fiber diameter fluctuations and fail to meet the requirements of high-precision applications. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0014] Figure 2 This is a schematic diagram of the structure of the first stirring rod and the second stirring rod of this utility model;

[0015] Figure 3 This is a schematic diagram of the sealing ring structure of this utility model;

[0016] Figure 4 This is a schematic diagram of the lifting component structure of this utility model;

[0017] Figure 5 This is a schematic diagram of the movable support structure of this utility model.

[0018] Explanation of reference numerals in the attached drawings: 1. Support frame; 21. Moving plate; 22. First motor; 23. First bevel gear; 24. L-shaped bracket; 25. Second bevel gear; 26. Optical axis; 27. First support seat; 28. First stirring rod; 29. ​​Groove; 210. Sealing ring; 211. Third bevel gear; 212. Rotating sleeve; 213. Second support seat; 214. Second stirring rod; 31. Support plate; 32. Second motor; 33. Fourth bevel gear; 34. Fifth bevel gear; 35. Long rod; 36. Semicircular block; 37. Rotating disk; 38. Fixed rod; 39. U-shaped base; 310. Movable bracket; 311. Limiting rod; 312. Limiting disk; 4. Liquid storage tank; 5. Constant flow liquid supply device; 6. High voltage electrostatic generator; 7. Receiving device; 8. Grounding electrode. Detailed Implementation

[0019] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0020] Please see Figure 1 - Figure 5This utility model provides an embodiment of an anti-coagulation mechanism for a spinning solution storage device in electrospinning. The mechanism includes a support frame 1, a movable plate 21, and a lifting assembly. A storage tank 4 is fixedly connected inside the support frame 1. A receiving device 7 for absorbing fibers inside the storage tank 4 is located at the top of the storage tank 4. A grounding electrode 8 is electrically connected to the right end of the receiving device 7. A constant current supply device 5 for providing spinning solution to the storage tank 4 is located at the right end of the storage tank 4. A high-voltage electrostatic generator 6 is electrically connected to the right end of the storage tank 4. A movable plate 21 is located at the bottom of the storage tank 4. A lifting assembly for raising and lowering the movable plate 21 is located at the bottom of the storage tank 4. An L-shaped bracket 24 is fixedly connected to the bottom of the movable plate 21. A sealing device is fixedly connected inside the storage tank 4. A light shaft 26 is rotatably connected inside the ring 210 and the L-shaped bracket 24. A first support 27 is fixedly connected to the top of the light shaft 26, and a first stirring rod 28 is fixedly connected to the top of the first support 27. A groove 29 is formed on the top of the first stirring rod 28. A rotating sleeve 212 is rotatably connected inside the moving plate 21 and is located inside the sealing ring 210. The light shaft 26 is rotatably connected inside the rotating sleeve 212. A second support 213 is fixedly connected to the top of the rotating sleeve 212, and a second stirring rod 214 is fixedly connected to the top of the second support 213. The groove 29 is formed on the top of the second stirring rod 214. The first stirring rod 28 and the second stirring rod 214 rotate synchronously in opposite directions, thereby improving the cleaning of the liquid inside the storage tank 4. The stirring efficiency of the spinning solution is improved to prevent solidification and enhance the practicality of the device. The lifting assembly rotates via a rotating disk 37, which in turn drives a movable plate 21 to slide on a limiting rod 311 via a movable bracket 310. This causes the movable plate 21 to reciprocate, raising and lowering simultaneously. This allows the first stirring rod 28 and the second stirring rod 214 to stir and rise within the storage tank 4. The free liquid surface formed between the storage tank 4 and the groove 29 is stretched into fine filaments under high-voltage electrostatic force, forming Taylor cones and ultimately fibers that are received by the receiving device 7, resulting in a uniform nanofiber membrane. This further enhances the device's practicality. Four sets of the first stirring rod 28 are provided. A stirring rod 28 is symmetrically distributed on the top of the first support base 27, allowing it to rotate synchronously in opposite directions via the first stirring rod 28 and the second stirring rod 214, thereby improving the stirring efficiency of the spinning solution inside the storage tank 4. Four sets of second stirring rods 214 are provided, symmetrically distributed on the top of the second support base 213, allowing them to rotate synchronously in opposite directions via the first stirring rod 28 and the second stirring rod 214, further improving the stirring efficiency of the spinning solution inside the storage tank 4. A first motor 22 is fixedly connected to the bottom of the moving plate 21, and a first bevel gear 23 is fixedly connected to the output end of the first motor 22. A second bevel gear 25 meshes with the outside of the first bevel gear 23, and the second bevel gear 25 is fixedly connected to the optical shaft 26.The first bevel gear 23 is externally meshed with a third bevel gear 211. The third bevel gear 211 is fixedly connected to the rotating sleeve 212. Through the synchronous counter-rotation of the first stirring rod 28 and the second stirring rod 214, it improves the stirring efficiency of the spinning solution inside the storage tank 4, preventing solidification of the spinning solution and enhancing the practicality of the device.

[0021] Please see Figure 4 - Figure 5 In this embodiment, the lifting assembly includes a support plate 31, which is fixedly connected to the inside of the support frame 1. A second motor 32 is fixedly mounted on the top of the support plate 31. A fourth bevel gear 33 is fixedly connected to the output end of the second motor 32. A fifth bevel gear 34 meshes with the outside of the fourth bevel gear 33. A long rod 35 is fixedly connected to the inside of the fifth bevel gear 34. A semicircular block 36 is fixedly connected to the top of the support plate 31. The long rod 35 is rotatably connected to the inside of the semicircular block 36. A rotating disk 3 is fixedly connected to the long rod 35. 7. A fixed rod 38 is fixedly connected to the outer side of the rotating disk 37. A movable bracket 310 is rotatably connected to the fixed rod 38. A U-shaped base 39 is fixedly connected to the bottom of the movable plate 21. The end of the movable bracket 310 away from the fixed rod 38 is rotatably connected to the inside of the U-shaped base 39. A limit rod 311 is fixedly connected to the bottom of the liquid storage tank 4. The movable plate 21 is slidably connected to the limit rod 311. A limit plate 312 is fixedly connected to the bottom of the limit rod 311. The lifting assembly rotates through the rotating disk 37 and then through the movable bracket 310. This causes the moving plate 21 to slide on the limiting rod 311, which in turn causes the moving plate 21 to reciprocate up and down. This, in turn, causes the first stirring rod 28 and the second stirring rod 214 to move up and down simultaneously while stirring within the storage tank 4. The free liquid surface formed between the storage tank 4 and the groove 29 is stretched into fine filaments under the action of high-voltage electrostatics, forming Taylor cones and ultimately fibers until they are received by the receiving device 7, finally forming a uniform nanofiber membrane. This improves the practicality of the device. (The components mentioned are: rotating disk 37, fixed rod 38, and movable support.) The frame 310 and the U-shaped base 39 are each provided with two sets. The two sets of rotating disks 37, fixed rods 38, movable support 310 and U-shaped base 39 are symmetrically distributed at the bottom of the moving plate 21, so that the two ends of the moving plate 21 can be raised and lowered synchronously, thereby improving the stability of the reciprocating raising and lowering of the moving plate 21. The limit rods 311 and limit plates 312 are each provided with two sets. The two sets of limit rods 311 and limit plates 312 are symmetrically distributed at the bottom of the liquid storage tank 4, so that the moving plate 21 is limited, thereby improving the stability of the raising and lowering of the moving plate 21.

[0022] During operation, the spinning solution is injected into the constant flow supply device 5, and then injected into the storage tank 4 at a constant rate until the spinning solution in the storage tank 4 is level with the end of the storage tank 4. Then, the constant flow supply device 5 is turned off, and the high-voltage electrostatic generator 6 is turned on, simultaneously turning the constant flow supply device 5 back on. After setting the supply rate, the first motor 22 is started, driving the first bevel gear 23 to rotate. The second bevel gear 25 and the third bevel gear 211 mesh with the first bevel gear 23, synchronously driving the optical shaft 26 and the rotating sleeve 212 to rotate in the opposite direction. This causes the first stirring rod 28 and the second stirring rod 214 to rotate synchronously in the opposite direction, stirring the spinning solution inside the storage tank 4, improving the stirring efficiency of the spinning solution, and preventing solidification of the spinning solution. The phenomenon is that while the spinning solution inside the storage tank 4 is being stirred, the second motor 32 is started, which meshes with the fifth bevel gear 34 and the fourth bevel gear 33, causing the long rod 35 to rotate inside the semi-circular block 36, which in turn causes the rotating disk 37 to rotate. The movable bracket 310 causes the moving plate 21 to slide on the limiting rod 311, which in turn causes the moving plate 21 to reciprocate and rise and fall. The sealing ring 210 improves the sealing of the device, so that the first stirring rod 28 and the second stirring rod 214 are stirred and raised and lowered inside the storage tank 4. The free liquid surface formed in the storage tank 4 and the groove 29 is stretched into a filament under the action of high voltage electrostatics, forming Taylor cones and finally forming fibers until they are received by the receiving device 7, ultimately forming a uniform nanofiber membrane, which improves the practicality of the device.

[0023] Through the above steps, the first stirring rod 28 and the second stirring rod 214 rotate synchronously in opposite directions, thereby improving the stirring efficiency of the spinning solution inside the storage tank 4, preventing the spinning solution from solidifying, and improving the practicality of the device. This solves the problem that voids or cracks appear inside the fiber, which will increase the fluctuation of the fiber diameter and fail to meet the requirements of high-precision applications.

Claims

1. A mechanism for preventing solidification of spinning solution in an electrospinning liquid storage device, comprising a support frame (1), characterized in that: It also includes a movable plate (21) and a lifting assembly. A liquid storage tank (4) is fixedly connected inside the support frame (1). A receiving device (7) for absorbing fibers inside the liquid storage tank (4) is provided on the top of the liquid storage tank (4). A grounding electrode (8) is electrically connected to the right end of the receiving device (7). A constant flow liquid supply device (5) for providing spinning solution to the liquid storage tank (4) is provided on the right end of the liquid storage tank (4). A high voltage electrostatic generator (6) is electrically connected to the right end of the liquid storage tank (4). A movable plate (21) is provided at the bottom of the liquid storage tank (4). A lifting assembly for driving the movable plate (21) to move up and down is provided at the bottom of the liquid storage tank (4). An L-shaped bracket (24) is fixedly connected to the bottom of the movable plate (21). A sealing ring is fixedly connected inside the liquid storage tank (4). 210), an optical shaft (26) is rotatably connected inside the L-shaped bracket (24), a first support seat (27) is fixedly connected to the top of the optical shaft (26), a first stirring rod (28) is fixedly connected to the top of the first support seat (27), a groove (29) is opened on the top of the first stirring rod (28), a rotating sleeve (212) is rotatably connected inside the moving plate (21), the rotating sleeve (212) is set inside the sealing ring (210), the optical shaft (26) is rotatably connected inside the rotating sleeve (212), a second support seat (213) is fixedly connected to the top of the rotating sleeve (212), a second stirring rod (214) is fixedly connected to the top of the second support seat (213), and a groove (29) is opened on the top of the second stirring rod (214).

2. The anti-coagulation mechanism for the spinning solution in an electrospinning liquid storage device according to claim 1, characterized in that: The first stirring rod (28) is provided in four sets, and the four sets of first stirring rods (28) are symmetrically distributed on the top of the first support base (27).

3. The anti-coagulation mechanism for the spinning solution in an electrospinning liquid storage device according to claim 1, characterized in that: The second stirring rod (214) is provided in four sets, and the four sets of second stirring rods (214) are symmetrically distributed on the top of the second support (213).

4. The anti-coagulation mechanism for the spinning solution in an electrospinning liquid storage device according to claim 1, characterized in that: The bottom of the movable plate (21) is fixedly connected to a first motor (22), the output end of the first motor (22) is fixedly connected to a first bevel gear (23), the first bevel gear (23) is meshed with a second bevel gear (25), the second bevel gear (25) is fixedly connected to the optical shaft (26), the first bevel gear (23) is meshed with a third bevel gear (211), and the third bevel gear (211) is fixedly connected to the rotating sleeve (212).

5. The anti-coagulation mechanism for the spinning solution in an electrospinning liquid storage device according to claim 1, characterized in that: The lifting assembly includes a support plate (31), which is fixedly connected to the inside of the support frame (1). A second motor (32) is fixedly mounted on the top of the support plate (31). A fourth bevel gear (33) is fixedly connected to the output end of the second motor (32). A fifth bevel gear (34) meshes with the outside of the fourth bevel gear (33). A long rod (35) is fixedly connected inside the fifth bevel gear (34). A semicircular block (36) is fixedly connected to the top of the support plate (31). The long rod (35) is rotatably connected inside the semicircular block (36). A rotating disk (37) is fixedly connected. A fixed rod (38) is fixedly connected to the outside of the rotating disk (37). A movable bracket (310) is rotatably connected to the fixed rod (38). A U-shaped base (39) is fixedly connected to the bottom of the movable plate (21). The end of the movable bracket (310) away from the fixed rod (38) is rotatably connected to the inside of the U-shaped base (39). A limit rod (311) is fixedly connected to the bottom of the liquid storage tank (4). The movable plate (21) is slidably connected to the limit rod (311). A limit plate (312) is fixedly connected to the bottom of the limit rod (311).

6. The anti-coagulation mechanism for the spinning solution in an electrospinning liquid storage device according to claim 5, characterized in that: Two sets of rotating disks (37), fixed rods (38), movable supports (310) and U-shaped bases (39) are provided. The two sets of rotating disks (37), fixed rods (38), movable supports (310) and U-shaped bases (39) are symmetrically distributed at the bottom of the movable plate (21).

7. The anti-coagulation mechanism for the spinning solution in an electrospinning liquid storage device according to claim 5, characterized in that: Two sets of limit rods (311) and limit discs (312) are provided, and the two sets of limit rods (311) and limit discs (312) are symmetrically distributed at the bottom of the liquid storage tank (4).

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