Needleless electrostatic spinning device

Abstract

The utility model discloses a needleless electrostatic spinning device, which belongs to the technical field of electrostatic spinning, and comprises two groups of brackets I and two groups of brackets II, one sides, close to each other, of the two groups of brackets I and the two groups of brackets II are respectively and rotatably provided with a silk releasing roller and a wind-up roller, and the left sides of the two groups of brackets I are provided with a spraying box; a spraying assembly is arranged in the spraying box and comprises a water tank, a short pipe is fixedly installed at the bottom of the water tank, a strip-shaped water box is arranged at the bottom of the short pipe, redundant spinning liquid is recycled, waste of the spinning liquid is reduced, direct discharge of a large amount of redundant spinning liquid is avoided, and the pollution risk to the environment is reduced; the spinning solution is rapidly cured through rapid drying, the possibility that pollutants such as external dust and impurities are attached to the non-dried spinning solution is reduced, the situation that the local part is too thick or too thin is avoided, and the quality uniformity and stability of collected silk yarn products are guaranteed.

Description

Technical Field

[0001] The utility model relates to the technical field of electrostatic spinning, in particular to a needle-free electrostatic spinning device. Background Art

[0002] Nanofibers generally refer to ultrafine fibers with a diameter between 1 and 100 nm. There are many methods for preparing nanofibers, such as stretching, template polymerization, microphase separation, self-assembly, and electrospinning. Among them, electrospinning is currently the only method that can directly and continuously prepare polymer nanofibers. It has the advantages of simple process, convenient operation, and fast manufacturing speed. The prepared nanofibers have low density, large specific surface area, high porosity, and high axial strength. They are increasingly used in high-value-added products such as medical care, environmental protection, clothing, filtration, cleaning, insulation, personal care, and energy storage. Electrospinning technology, referred to as electrospinning or electrospinning, is a technology developed from electrospraying technology. In recent years, with the development of nanotechnology, electrospinning technology has achieved rapid development. The scientific research and industrial circles of all countries in the world have shown great interest in this technology. With the gradual development of technology, needle-free electrospinning technology has been applied. However, there are certain defects. For example, the excess spinning solution cannot be effectively recycled and reused, which increases the cost. The silk thread that has just been sprayed with the spinning solution cannot be quickly dried, which may cause external dust, impurities and other pollutants to adhere to the undried spinning solution. In addition, the silk thread cannot be evenly wound, which may cause local over-thickness or over-thinness. Therefore, we propose a needle-free electrospinning device to solve this problem. Utility Model Content

[0003] The purpose of the present invention is to provide a needle-free electrospinning device to solve the problems raised in the above background technology.

[0004] In order to achieve the above purpose, the present invention adopts the following technical solutions:

[0005] The spraying box is provided with a spraying assembly on the left side of the two brackets, and the spraying assembly includes: a water tank, a short tube is fixedly installed on the bottom of the water tank, a strip water box is provided on the bottom of the short tube, a plurality of nozzles are fixedly installed on the bottom of the strip water box, a trapezoidal box is provided on the bottom of the plurality of nozzles, a long tube is fixedly installed on the bottom of the trapezoidal box, a collecting box is fixedly installed on the bottom end of the long tube, one end of the collecting box is fixedly installed with a discharge pipe, one end of the discharge pipe is provided with a connecting pipe, one end of the connecting pipe is fixedly connected to the water tank, a drying box is provided on the left side of the spraying box, and a drying assembly is provided inside the drying box, and the drying assembly includes: two sets of rotating shafts, the two sets of rotating shafts are rotatably installed inside the top end of the drying box, and fans are fixedly installed on the bottoms of the two sets of rotating shafts.

[0006] Preferably, a base is provided on one side of the drying box, and an auxiliary component is provided inside the base, and the auxiliary component includes: a reciprocating screw rod, the reciprocating screw rod is rotatably installed on the inner walls on both sides of the base, the outer side of the reciprocating screw rod is threadedly connected to a threaded block, the top of the threaded block is fixedly installed with a fixed rod, the top of the fixed rod is fixedly installed with a guide ring, the base and one side of the bracket 2 located on the front side are respectively fixedly installed with motor 2 and motor 3, and the output shafts of motor 2 and motor 3 are respectively fixedly connected to the reciprocating screw rod and the winding roller.

[0007] Preferably, transmission rings are fixedly installed on the outer sides of the two groups of rotating shafts, and belts are installed on the outer sides of the two groups of transmission rings. A motor frame is fixedly installed on the top of the drying box, and motor 1 is fixedly installed on one end of the motor frame. The output shaft of motor 1 is fixedly connected to the rotating shaft located on the right side. Heating plates are provided at the bottom of the two groups of fans, and the heating plates are fixedly connected to the inner walls on both sides of the drying box. Air inlets and air outlets are respectively provided at both ends of the drying box.

[0008] Preferably, the water tank is fixedly installed on the top of the drying box, a water pump 1 is fixedly installed on the bottom of the short tube, the bottom end of the water pump 1 is fixedly connected to the strip water box, a circulating pump is fixedly installed on one end of the discharge pipe, and one end of the circulating pump is fixedly connected to the connecting pipe, and water pump racks are fixedly installed on the outside of the water pump 1 and the circulating pump, and the two groups of water pump racks are respectively fixedly connected to the top inner wall and one side outer wall of the spray box, and the trapezoidal box and the collecting box are fixedly installed inside the spray box.

[0009] Preferably, a limiting rod is slidably installed inside the threaded block, and both ends of the limiting rod are fixedly connected to the inner walls of both sides of the base respectively. A sliding groove is provided on the top of the base, and the fixed rod is slidably installed inside the sliding groove.

[0010] Preferably, two groups of fixing frames are provided on the side where the bracket 1 and the spray box are close to each other, and guide rollers are rotatably installed on the side where the two groups of fixing frames are close to each other. A high-voltage power supply is fixed on one side of the spray box, and a high-voltage electrode is provided at the bottom of the high-voltage power supply. The high-voltage electrode is fixedly connected to the spray box, and the high-voltage power supply is electrically connected to the high-voltage electrode.

[0011] In the utility model, the needle-free electrostatic spinning device is provided with a coating component and a coating box. By driving a water pump, the spinning liquid inside the water tank is sent to the inside of the strip water box through a short tube. At this time, it is sprayed out through the nozzle, so that the spinning liquid adheres to the surface of the silk thread. By driving the circulation pump, the excess spinning liquid in the collection box is sent back to the inside of the water tank for recycling. The excess spinning liquid is recycled, which reduces the waste of spinning liquid, avoids the direct discharge of a large amount of excess spinning liquid, reduces the risk of pollution to the environment, and continuously and stably circulates the supply of spinning liquid, so that the flow rate, concentration and other parameters of the spinning liquid remain relatively stable during the spinning process.

[0012] In the utility model, the needle-free electrostatic spinning device is provided with a drying component, an auxiliary component and a heating plate. By driving motor 1, the motor drives the rotating shaft on the right side to rotate. At this time, through two sets of transmission rings and belts, the two sets of rotating shafts drive the fan to rotate. Then, by turning on the heating plate, the hot air blown out can effectively dry the spinning liquid on the silk thread. Timely drying can prevent the spinning liquid from flowing, accumulating or deforming when it is not dried, so that the spinning coating is uniform and the thickness is consistent, thereby improving the dimensional stability and performance consistency of the product. Rapid drying can quickly solidify the spinning liquid and reduce the attachment of external pollutants such as dust and impurities. The possibility of the silk thread being coated on the undried spinning solution is reduced, and the risk of the silk thread being physically damaged in a wet state is also reduced. By driving the motor 2, the motor 2 drives the reciprocating screw to rotate, and the threaded block drives the fixed rod and the guide ring on the top to move back and forth, so that the silk thread coated with the spinning solution can be evenly collected, and the silk thread can be evenly distributed and accumulated to avoid the situation where the silk thread is locally too thick or too thin, thereby ensuring the uniformity and stability of the quality of the collected silk thread products. The uniform collection action can reduce the possibility of the silk threads being entangled and knotted with each other, so that the silk threads can maintain a better linear state, and reduce the time and energy spent on dealing with these problems. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 This is a schematic diagram of the three-dimensional structure of a needle-free electrospinning device proposed in the present invention;

[0014] Figure 2 This is a schematic cross-sectional view of a needle-free electrospinning device proposed in the present invention;

[0015] Figure 3 This is a schematic diagram of the spray assembly structure proposed by the utility model;

[0016] Figure 4 This is a schematic diagram of the drying component structure proposed by the utility model;

[0017] Figure 5 This is a schematic diagram of the auxiliary component structure proposed by the utility model.

[0018] Figure: 1, bracket 1; 2, wire roller; 3, fixed frame; 4, guide roller; 5, spray box; 6, spray assembly; 601, water tank; 602, short pipe; 603, water pump 1; 604, strip water box; 605, nozzle; 606, trapezoidal box; 607, long pipe; 608, collection box; 609, circulation pump; 610, connecting pipe; 7, drying box; 8, drying assembly; 801, rotating shaft; 80 2. Transmission ring; 803. Belt; 804. Fan; 9. Auxiliary components; 901. Reciprocating screw; 902. Threaded block; 903. Fixed rod; 904. Guide ring; 905. Limit rod; 10. Base; 11. Bracket 2; 12. Winding roller; 13. Air inlet; 14. Motor 1; 15. Motor 2; 16. Motor 3; 17. Heating plate; 18. High-voltage power supply; 19. High-voltage electrode. DETAILED DESCRIPTION

[0019] The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0020] Reference Figure 1-5A needle-free electrospinning device comprises: two sets of brackets 1 and two sets of brackets 2 11, a wire-releasing roller 2 and a winding roller 12 are rotatably installed on the side close to each other of the two sets of brackets 1 and 2, a spray box 5 is provided on the left side of the two sets of brackets 1, a spray assembly 6 is provided inside the spray box 5, and the spray assembly 6 comprises: a water tank 601, a short tube 602 is fixedly installed at the bottom of the water tank 601, a strip water box 604 is provided at the bottom of the short tube 602, a plurality of nozzles 605 are fixedly installed at the bottom of the strip water box 604, and a ladder is provided at the bottom of the plurality of nozzles 605. A long tube 607 is fixedly installed at the bottom of the trapezoidal box 606, a collecting box 608 is fixedly installed at the bottom of the long tube 607, a discharge pipe is fixedly installed at one end of the collecting box 608, a connecting pipe 610 is provided at one end of the discharge pipe, and one end of the connecting pipe 610 is fixedly connected to the water tank 601. A drying box 7 is provided on the left side of the spray box 5, and a drying assembly 8 is provided inside the drying box 7. The drying assembly 8 includes: two sets of rotating shafts 801, and the two sets of rotating shafts 801 are rotatably installed inside the top of the drying box 7, and fans 804 are fixedly installed at the bottom of the two sets of rotating shafts 801.

[0021] In this embodiment, a base 10 is provided on one side of the drying box 7, and an auxiliary component 9 is provided inside the base 10. The auxiliary component 9 includes: a reciprocating screw rod 901, the reciprocating screw rod 901 is rotatably mounted on the inner walls on both sides of the base 10, the outer side of the reciprocating screw rod 901 is threadedly connected to a threaded block 902, a fixed rod 903 is fixedly mounted on the top of the threaded block 902, and a guide ring 904 is fixedly mounted on the top of the fixed rod 903. A motor 2 15 and a motor 3 16 are fixedly mounted on one side of the base 10 and the bracket 2 11 located on the front side, respectively. The output shafts of the motor 2 15 and the motor 3 16 are respectively connected to the reciprocating screw rod 901 and The winding roller 12 is fixedly connected to facilitate the uniform winding of the silk thread. The outer sides of the two sets of rotating shafts 801 are fixedly installed with transmission rings 802, and the outer sides of the two sets of transmission rings 802 are driven by belts 803. A motor frame is fixedly installed on the top of the drying box 7, and a motor 14 is fixedly installed on one end of the motor frame. The output shaft of motor 14 is fixedly connected to the rotating shaft 801 on the right side. A heating plate 17 is provided at the bottom of the two sets of fans 804, and the heating plate 17 is fixedly connected to the inner walls of both sides of the drying box 7. An air inlet 13 and an air outlet are respectively provided at both ends of the drying box 7 to facilitate drying the silk thread after being coated with spinning solution.

[0022] In this embodiment, the water tank 601 is fixedly installed on the top of the drying box 7, and a water pump 603 is fixedly installed at the bottom of the short tube 602. The bottom end of the water pump 603 is fixedly connected to the strip water box 604, and a circulation pump 609 is fixedly installed at one end of the discharge pipe. One end of the circulation pump 609 is fixedly connected to the connecting pipe 610. Water pump racks are fixedly installed on the outsides of the water pump 603 and the circulation pump 609. The two sets of water pump racks are respectively fixedly connected to the top inner wall and one side outer wall of the spray box 5. The trapezoidal box 606 and the collecting box 608 are both fixedly installed inside the spray box 5, which is convenient for spraying the spinning solution on the surface of the silk thread and recycling the excess spinning solution. The threaded block 90 2 is slidably installed with a limit rod 905, and the two ends of the limit rod 905 are fixedly connected to the inner walls of both sides of the base 10 respectively. A slide groove is provided on the top of the base 10, and the fixed rod 903 is slidably installed inside the slide groove to prevent the guide ring 904 from rotating when it moves back and forth. Two groups of fixed frames 3 are provided on the side where the bracket 1 and the spray box 5 are close to each other, and guide rollers 4 are rotatably installed on the side where the two groups of fixed frames 3 are close to each other. A high-voltage power supply 18 is fixed on one side of the spray box 5, and a high-voltage electrode 19 is provided at the bottom of the high-voltage power supply 18. The high-voltage electrode 19 is fixedly connected to the spray box 5, and the high-voltage power supply 18 is electrically connected to the high-voltage electrode 19, which is convenient for stable movement of the silk thread.

[0023] In this embodiment, when in use, the staff sequentially passes the silk thread on the unwinding roller 2 through the top of the guide roller 4, the inside of the spray box 5, the inside of the high-voltage electrode 19, the inside of the drying box 7 and the inside of the guide ring 904, and finally reels it on the outside of the rewinding roller 12. At this time, by driving the water pump 603, the spinning liquid inside the water tank 601 is sent to the inside of the strip water box 604 through the short tube 602. At this time, it is sprayed out through the nozzle 605, so that the spinning liquid adheres to the surface of the silk thread. At this time, the excess spinning liquid falls into the inside of the trapezoidal box 606, and then enters the inside of the collecting box 608 through the long tube 607. At this time, by driving the circulating pump 609, the excess spinning liquid in the collecting box 608 is The remaining spinning liquid is sent back to the inside of the water tank 601 for recycling, discharged by the high-voltage electrode 19, and then driven by motor 14, so that motor 14 drives the rotating shaft 801 on the right to rotate. At this time, through two sets of transmission rings 802 and belts 803, the two sets of rotating shafts 801 drive the fan 804 to rotate, and then by turning on the heating plate 17, the hot air blown out can effectively dry the spinning liquid on the silk thread. At this time, by driving motor 2 15, motor 2 15 drives the reciprocating wire rod 901 to rotate, so that the threaded block 902 drives the top fixed rod 903 and the guide ring 904 to move back and forth, so that the silk thread coated with the spinning liquid can be evenly collected.

[0024] The above is a detailed introduction to the needle-free electrospinning device provided by the present invention. This article uses specific examples to illustrate the principles and implementation methods of the present invention. The description of the above examples is only intended to help understand the method and core concept of the present invention. It should be pointed out that for ordinary technicians in this technical field, without departing from the principles of the present invention, various improvements and modifications can be made to the present invention, and these improvements and modifications also fall within the scope of protection of the claims of the present invention.

Claims

1. A needle-free electrospinning device, characterized in that: include: Two groups of brackets (1) and two groups of brackets (11), a wire unwinding roller (2) and a winding roller (12) are rotatably installed on the side of the two groups of brackets (1) and brackets (11) close to each other, a spray box (5) is provided on the left side of the two groups of brackets (1), a spray assembly (6) is provided inside the spray box (5), and the spray assembly (6) includes: a water tank (601), a short tube (602) is fixedly installed at the bottom of the water tank (601), a strip water box (604) is provided at the bottom of the short tube (602), a plurality of groups of nozzles (605) are fixedly installed at the bottom of the plurality of groups of nozzles (605), a trapezoidal box (606) is provided at the bottom of the plurality of groups of nozzles (605), A long tube (607) is fixedly installed at the bottom of the trapezoidal box (606), a collecting box (608) is fixedly installed at the bottom end of the long tube (607), a discharge pipe is fixedly installed at one end of the collecting box (608), a connecting pipe (610) is provided at one end of the discharge pipe, and one end of the connecting pipe (610) is fixedly connected to the water tank (601), a drying box (7) is provided on the left side of the spray box (5), a drying assembly (8) is provided inside the drying box (7), and the drying assembly (8) includes: two groups of rotating shafts (801), the two groups of rotating shafts (801) are rotatably installed inside the top end of the drying box (7), and fans (804) are fixedly installed at the bottom of the two groups of rotating shafts (801).

2. A needle-free electrospinning device according to claim 1, characterized in that: A base (10) is provided on one side of the drying box (7), and an auxiliary component (9) is provided inside the base (10), and the auxiliary component (9) includes: a reciprocating screw rod (901), the reciprocating screw rod (901) is rotatably mounted on the inner walls of both sides of the base (10), the outer side of the reciprocating screw rod (901) is threadedly connected to a threaded block (902), the top of the threaded block (902) is fixedly mounted with a fixed rod (903), and the top of the fixed rod (903) is fixedly mounted with a guide ring (904), and the base (10) and one side of the second bracket (11) located on the front side are respectively fixedly mounted with a second motor (15) and a third motor (16), and the output shafts of the second motor (15) and the third motor (16) are respectively fixedly connected to the reciprocating screw rod (901) and the winding roller (12).

3. The needle-free electrospinning device according to claim 1, characterized in that: Transmission rings (802) are fixedly installed on the outer sides of the two groups of rotating shafts (801), and belts (803) are transmission-installed on the outer sides of the two groups of transmission rings (802). A motor frame is fixedly installed on the top of the drying box (7), and a motor 1 (14) is fixedly installed on one end of the motor frame. The output shaft of the motor 1 (14) is fixedly connected to the rotating shaft (801) located on the right side. A heating plate (17) is provided at the bottom of the two groups of fans (804), and the heating plate (17) is fixedly connected to the inner walls of both sides of the drying box (7). An air inlet (13) and an air outlet are respectively provided at both ends of the drying box (7).

4. The needle-free electrospinning device according to claim 1, characterized in that: The water tank (601) is fixedly installed on the top of the drying box (7), and a water pump (603) is fixedly installed on the bottom of the short tube (602). The bottom end of the water pump (603) is fixedly connected to the strip water box (604). A circulation pump (609) is fixedly installed on one end of the discharge pipe, and one end of the circulation pump (609) is fixedly connected to the connecting pipe (610). Water pump racks are fixedly installed on the outside of the water pump (603) and the circulation pump (609). The two groups of water pump racks are respectively fixedly connected to the top inner wall and one side outer wall of the spray box (5). The trapezoidal box (606) and the collecting box (608) are fixedly installed inside the spray box (5).

5. The needle-free electrospinning device according to claim 2, characterized in that: A limiting rod (905) is slidably installed inside the threaded block (902), and the two ends of the limiting rod (905) are fixedly connected to the inner walls of the base (10) on both sides. A sliding groove is provided on the top of the base (10), and the fixing rod (903) is slidably installed inside the sliding groove.

6. The needle-free electrospinning device according to claim 1, characterized in that: Two groups of fixing frames (3) are provided on the side where the bracket 1 (1) and the spray box (5) are close to each other, and guide rollers (4) are rotatably installed on the side where the two groups of fixing frames (3) are close to each other. A high-voltage power supply (18) is fixed on one side of the spray box (5), and a high-voltage electrode (19) is provided at the bottom of the high-voltage power supply (18). The high-voltage electrode (19) is fixedly connected to the spray box (5), and the high-voltage power supply (18) is electrically connected to the high-voltage electrode (19).

Images