Online automatic cleaning continuous production electrostatic spinning device

Abstract

The invention discloses an online automatic cleaning continuous production electrostatic spinning device which comprises a supporting frame, and a supporting base is installed at the bottom of the supporting frame; the lifting frame is vertically connected to the supporting frame in a sliding mode, and a lifting assembly is installed on the supporting seat and located at the top end of the lifting assembly; the spinning mechanism comprises spinning turntables rotationally connected to the lifting frame through gear sets, the two spinning turntables are arranged oppositely, and five sets of spinning steel wires are arranged between the two spinning turntables; the transmission mechanism comprises a first transmission assembly and a second transmission assembly, the first transmission assembly is in transmission fit with the gear set, and the second transmission assembly is in transmission fit with the spinning steel wire; wherein a spinning tank, two groups of cleaning tanks and two groups of drying tanks are mounted on the lifting frame. Non-needle type spinning is adopted, blocking is avoided, meanwhile, needle cleaning is not needed, the spinning efficiency is high, solvent type solutions can be spun, and the application range is wide.

Description

Technical Field

[0001] The invention relates to the technical field of electrostatic spinning, in particular to an online automatic cleaning and continuous production electrostatic spinning device. Background Art

[0002] Electrostatic fiber forming technology is called electrospinning technology, which uses high-voltage electrostatic energy to produce polymer fibers with diameters ranging from nanometers to micrometers. The prepared electrospun nanofibers are widely used in various fields due to their special properties (high surface area, adjustable pore volume and a wide range of material types, etc.), such as tissue engineering, sensors, drug delivery, wound dressings and energy applications. Electrospinning to prepare polymer nanofibers has the characteristics of simple equipment and easy operation. It is one of the most important methods for preparing polymer continuous nanofibers so far. However, the traditional electrospinning device is a single-needle device with low production efficiency. The productivity of a single-needle electrospinning machine can only reach (0.1~1) g / h, which leads to excessively high production costs, which in turn affects its industrialization and scale. In response to this problem, relevant researchers have proposed multi-needle electrospinning technology, which is also the most common method to increase production and promote industrial applications. It is also one of the most important methods. With the development of experiments, people found that although the multi-needle electrospinning device can improve productivity to a certain extent, the equipment structure is complex and the electric field interference between needles is very large. For example, Theron et al. used 9 needles arranged in 3×3 and 9×1 arrays for experiments and found that the array-type multi-needle jets would repel each other due to the electrostatic influence between adjacent needles, which could easily cause the needles to be blocked and affect the spinning quality. At the same time, the necessary gaps between the needles in the array would lead to an increase in the size of the device, which is difficult to match with industrial production. Therefore, people gradually shifted from multi-needle to needleless electrospinning technology. In recent years, equipment such as nano spiders that can prepare nanofibers in batches have emerged. However, the current nanofiber preparation devices have the problems of easy blockage and uneven silk output. Based on this, the present invention provides an online automated cleaning and continuous production electrospinning device. Summary of the invention

[0003] The purpose of the present invention is to provide an online automatic cleaning and continuous production electrospinning device to solve the problems existing in the prior art.

[0004] To achieve the above object, the present invention provides the following solution: The present invention provides an online automatic cleaning and continuous production electrospinning device, comprising:

[0005] A support frame, wherein a support seat is installed at the bottom of the support frame;

[0006] A lifting frame, the lifting frame is vertically slidably connected to the support frame, a lifting component is installed on the support seat, and the top of the lifting component;

[0007] A spinning mechanism, the spinning mechanism comprising spinning turntables respectively connected to the lifting frame through a gear set, the two spinning turntables are arranged opposite to each other, and five groups of spinning steel wires are arranged between the two spinning turntables, the five groups of spinning steel wires are axially arranged at equal intervals between the two groups of spinning turntables, and the two ends of the group of spinning steel wires are respectively connected to the two spinning turntables;

[0008] A transmission mechanism, the transmission mechanism comprising a first transmission assembly and a second transmission assembly, the first transmission assembly being in transmission cooperation with the gear set, and the second transmission assembly being in transmission cooperation with the spinning steel wire;

[0009] Among them, a spinning tank, two groups of cleaning tanks and two groups of drying tanks are installed on the lifting frame, and the spinning tank, two groups of cleaning tanks and two groups of drying tanks are respectively arranged corresponding to the five groups of spinning steel wires.

[0010] According to the online automated cleaning continuous production electrospinning device provided by the present invention, both ends of the spinning steel wire are fixedly connected with spinning heads, the spinning heads pass through the spinning turntable and are rotatably connected to the spinning turntable, and the axis of the spinning steel wire is arranged parallel to the axis of the spinning turntable.

[0011] According to the online automated cleaning and continuous production electrospinning device provided by the present invention, the gear group includes a gear ring rotatably connected to the support frame, the other end of the spinning head is fixedly connected to a transmission gear, the transmission gear is meshed with the gear ring, and the second transmission assembly is matched with the gear ring for transmission.

[0012] According to the online automated cleaning continuous production electrospinning device provided by the present invention, the first transmission assembly includes a main shaft fixedly connected between the two spinning turntables, the axis of the main shaft is colinear with the axis of the spinning turntable, one end of the main shaft is fixedly connected to a driven pulley, the support seat is fixedly connected to a first transmission motor, the output shaft of the first transmission motor is fixedly connected to a driving pulley, and the driving pulley and the driven pulley are matched through a belt transmission;

[0013] Wherein, the diameter of the driving pulley is greater than the diameter of the driven pulley.

[0014] According to the online automated cleaning and continuous production electrospinning device provided by the present invention, the second transmission assembly includes a driving gear rotatably connected to the support frame via a rotating shaft, the driving gear is meshed with the gear ring, the other end of the rotating shaft is fixedly connected to a driven sprocket, the support seat is fixedly connected to a second transmission motor, the output shaft of the second transmission motor is fixedly connected to a driving sprocket, and the driving sprocket and the driven sprocket are matched through chain transmission.

[0015] According to the online automated cleaning and continuous production electrospinning device provided by the present invention, the lifting component includes a lifting motor fixedly connected to the top surface of the support seat, the output shaft of the lifting motor is fixedly connected to a screw, the axis of the screw is vertically arranged between the axis of the spinning turntable, the lifting frame is fixedly connected to a fixed block, the fixed block is provided with a threaded hole, the screw is inserted into the threaded hole and threadedly matched with the threaded hole.

[0016] According to the online automated cleaning continuous production electrospinning device provided by the present invention, the spinning turntable is a five-pointed star structure, and the five groups of spinning steel wires are respectively rotatably connected to the five end points of the spinning turntable through the spinning head.

[0017] According to the online automated cleaning continuous production electrospinning device provided by the present invention, the length of the spinning steel wire is 1900 mm, the length of the spinning slot is 1620 mm, and vertical slots are respectively provided on the front and rear sides of the spinning slot, and the vertical slots are correspondingly arranged between the spinning steel wire.

[0018] The present invention discloses the following technical effects:

[0019] When the present invention is working, the spinning tank is located in the vertical middle position, the cleaning tank and the drying tank are respectively located on both sides of the spinning tank, when one group of spinning steel wires on the spinning turntable corresponds to the spinning tank, the spinning turntable stops rotating, the lifting component drives the lifting frame to rise, the spinning steel wire is immersed in the spinning tank, the lifting frame descends, and the spinning steel wire is wrapped with spinning liquid. At this time, a high-voltage power supply is connected, and the spinning liquid on the steel wire achieves a spinning effect due to the electric field excitation. The first transmission component works to drive the spinning turntable to rotate, enter the cleaning tank for cleaning, and enter the drying tank for drying after cleaning. The above actions are repeated to achieve automatic cleaning, drying, and continuous spinning.

[0020] The present invention adopts non-needle spinning, which will not be blocked and does not need to clean the needle. The spinning efficiency is high and solvent-type solutions can be spun, which has a wide range of applications. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0022] Figure 1 The structure diagram of the online automatic cleaning and continuous production electrospinning device of the present invention is shown in FIG. Figure Ⅰ ;

[0023] Figure 2The structure diagram of the online automatic cleaning and continuous production electrospinning device of the present invention is shown in FIG. Figure II ;

[0024] Figure 3 This is a front view of the online automated cleaning and continuous production electrospinning device of the present invention.

[0025] Among them, 1. support frame; 2. support seat; 3. lifting frame; 4. spinning turntable; 5. spinning wire; 6. spinning tank; 7. cleaning tank; 8. drying tank; 9. spinning head; 10. gear ring; 11. transmission gear; 12. main shaft; 13. driven pulley; 14. driving pulley; 15. driving gear; 16. driven sprocket; 17. lifting motor; 18. screw; 19. fixing block. DETAILED DESCRIPTION

[0026] 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.

[0027] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, the present invention is further described in detail below with reference to the accompanying drawings and specific embodiments.

[0028] Reference Figure 1-Figure 3 The present invention provides an online automatic cleaning and continuous production electrospinning device, comprising:

[0029] A support frame 1, with a support seat 2 installed at the bottom of the support frame 1;

[0030] The lifting frame 3 is vertically slidably connected to the support frame 1, and a lifting component is installed on the support seat 2, and the top of the lifting component;

[0031] The spinning mechanism includes spinning turntables 4 which are respectively connected to the lifting frame 3 through a gear set, and two spinning turntables 4 are arranged opposite to each other, and five groups of spinning steel wires 5 are arranged between the two spinning turntables 4, and the five groups of spinning steel wires 5 are axially arranged at equal intervals between the two groups of spinning turntables 4, and the two ends of the spinning steel wires 5 are respectively connected to the two spinning turntables 4;

[0032] The transmission mechanism includes a first transmission assembly and a second transmission assembly, wherein the first transmission assembly cooperates with the gear set, and the second transmission assembly cooperates with the spinning steel wire 5;

[0033] Among them, a spinning tank 6, two groups of cleaning tanks 7 and two groups of drying tanks 8 are installed on the lifting frame 3, and the spinning tank 6, two groups of cleaning tanks 7 and two groups of drying tanks 8 are respectively arranged corresponding to the five groups of spinning steel wires 5.

[0034] When the present invention is working, the spinning tank 6 is located in the vertical middle position, the cleaning tank 7 and the drying tank 8 are respectively located on both sides of the spinning tank 6, when one group of spinning steel wires 5 rotated on the spinning turntable 4 corresponds to the spinning tank 6, the spinning turntable 4 stops rotating, the lifting component drives the lifting frame 3 to rise, the spinning steel wire 5 is immersed in the spinning tank 6, the lifting frame 3 descends, and the spinning steel wire 5 is wrapped with spinning liquid. At this time, a high-voltage power supply is connected, and the spinning liquid on the steel wire achieves a spinning effect due to the electric field excitation. The first transmission component works to drive the spinning turntable 4 to rotate, enter the cleaning tank 7 for cleaning, and enter the drying tank 8 for drying after cleaning. The above actions are repeated to achieve automatic cleaning, drying, and continuous spinning.

[0035] The present invention adopts non-needle spinning, which will not be blocked and does not need to clean the needle. The spinning efficiency is high and solvent-type solutions can be spun, which has a wide range of applications.

[0036] According to a further optimization scheme, both ends of the spinning steel wire 5 are respectively fixedly connected with spinning heads 9, the spinning head 9 passes through the spinning turntable 4 and is rotatably connected to the spinning turntable 4, and the axis of the spinning steel wire 5 is arranged parallel to the axis of the spinning turntable 4.

[0037] According to a further optimized solution, the gear set includes a gear ring 10 rotatably connected to the support frame 1, and the other end of the spinning head 9 is fixedly connected to a transmission gear 11, the transmission gear 11 is meshed with the gear ring 10, and the second transmission assembly and the gear ring 10 are in transmission cooperation.

[0038] Further optimized solution, the first transmission assembly includes a main shaft 12 fixedly connected between the two spinning turntables 4, the axis of the main shaft 12 is colinear with the axis of the spinning turntable 4, one end of the main shaft 12 is fixedly connected to a driven pulley 13, the support seat 2 is fixedly connected to a first transmission motor, the output shaft of the first transmission motor is fixedly connected to a driving pulley 14, and the driving pulley 14 and the driven pulley 13 are matched through belt transmission;

[0039] The diameter of the driving pulley 14 is greater than the diameter of the driven pulley 13 .

[0040] Further optimized solution, the second transmission assembly includes a driving gear 15 rotatably connected to the support frame 1 through a rotating shaft, the driving gear 15 is meshed with the gear ring 10, a driven sprocket 16 is fixedly connected to the other end of the rotating shaft, a second transmission motor is fixedly connected to the support seat 2, the output shaft of the second transmission motor is fixedly connected to the driving sprocket, and the driving sprocket and the driven sprocket 16 are matched through chain transmission. A planetary gear structure is formed between the gear ring 10 and the driving gear 15 and the transmission gear 11, and the driving sprocket outputs power, the driven sprocket 16 drives the driving gear 15 to rotate, the driving gear 15 drives the gear ring 10 to rotate, and the gear ring 10 drives multiple transmission gears 11 to rotate, so that the spinning wire 5 can rotate.

[0041] Further optimization scheme, the lifting assembly includes a lifting motor 17 fixedly connected to the top surface of the support seat 2, the output shaft of the lifting motor 17 is fixedly connected to the lead screw 18, the axis of the lead screw 18 is vertically arranged between the axis of the spinning turntable 4, and the lifting frame 3 is fixedly connected to a fixing block 19, the fixing block 19 is provided with a threaded hole, the lead screw 18 is inserted into the threaded hole and the threaded hole is threadedly matched. The lifting motor 17 controls the rotation of the lead screw 18, and the rotation of the lead screw 18 is transmitted to the fixing block 19, so as to drive the lifting frame 3 to lift vertically.

[0042] Further optimization scheme, the spinning turntable 4 is a five-pointed star structure, and five groups of spinning steel wires 5 are respectively connected to the five end points of the spinning turntable 4 through the spinning head 9. The spinning steel wires 5 are respectively installed on the five end points. When one group of spinning steel wires 5 is located at the twelve o'clock position, the spinning turntable 4 stops rotating, and the first transmission motor outputs the transmission force, and the first transmission motor drives the driving pulley 14 to rotate, and the driving pulley 14 drives the driven pulley 13 to rotate, thereby driving the spinning turntable 4 to rotate. At the same time, the diameter of the driving pulley 14 is smaller than the diameter of the driven pulley 13, so that a differential speed can be formed to reduce the rotation speed of the spinning turntable 4.

[0043] According to the further optimized solution, the length of the spinning steel wire 5 is 1900 mm, the length of the spinning tank 6 is 1620 mm, and vertical grooves are respectively provided on the front and rear sides of the spinning tank 6, and the vertical grooves are correspondingly arranged between the spinning steel wire 5. The spinning steel wire 5 passes through the vertical grooves and enters the spinning tank 6, the cleaning tank 7 and the drying tank 8.

[0044] In this embodiment, a balancing tank is installed on the lifting frame 3, and a piston slides vertically in the balancing tank. A connecting section is formed between the bottom of the piston and the bottom of the balancing tank. The spinning tank 6 is connected to the connecting section through a connecting tube through a balancing tube. A contact switch is installed on the top of the piston, and contact heads are respectively installed at the ends of the five groups of spinning steel wires 5. The contact heads correspond to the contact switches. When in contact, the switch is electrically connected to the lifting motor 17. When the spinning steel wire 5 rotates to the 12 o'clock position, the lifting frame 3 rises. When the contact head is connected to the contact switch, the lifting frame 3 stops lifting. In this way, the spinning steel wire 5 can always be immersed in the spinning liquid in the spinning tank 6.

[0045] In the description of the present invention, it should be understood that the terms "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside" and "outside" etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention, and do 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 should not be understood as a limitation on the present invention.

[0046] The embodiments described above are only descriptions of the preferred modes of the present invention, and are not intended to limit the scope of the present invention. Without departing from the design spirit of the present invention, various modifications and improvements made to the technical solutions of the present invention by ordinary technicians in this field should all fall within the protection scope determined by the claims of the present invention.

Claims

1. Online automated cleaning and continuous production electrospinning device, characterized in that: include: A support frame (1), wherein a support seat (2) is installed at the bottom of the support frame (1); A lifting frame (3), the lifting frame (3) is vertically slidably connected to the support frame (1), a lifting component is installed on the support seat (2), and the top end of the lifting component; A spinning mechanism, the spinning mechanism comprising spinning turntables (4) respectively connected to the lifting frame (3) through a gear set, the two spinning turntables (4) are arranged opposite to each other, and five groups of spinning steel wires (5) are arranged between the two spinning turntables (4), the five groups of spinning steel wires (5) are axially arranged at equal intervals between the two groups of spinning turntables (4), and the two ends of the group of spinning steel wires (5) are respectively connected to the two spinning turntables (4) through rotation; A transmission mechanism, the transmission mechanism comprising a first transmission assembly and a second transmission assembly, the first transmission assembly being in transmission cooperation with the gear set, and the second transmission assembly being in transmission cooperation with the spinning steel wire (5); Wherein, a spinning tank (6), two groups of cleaning tanks (7) and two groups of drying tanks (8) are installed on the lifting frame (3), and the spinning tank (6), two groups of cleaning tanks (7) and two groups of drying tanks (8) are respectively arranged corresponding to the five groups of spinning steel wires (5).

2. The online automated cleaning and continuous production electrospinning device according to claim 1 is characterized by: The two ends of the spinning steel wire (5) are respectively fixedly connected with a spinning head (9), the spinning head (9) passes through the spinning turntable (4) and is rotatably connected to the spinning turntable (4), and the axis of the spinning steel wire (5) is arranged parallel to the axis of the spinning turntable (4).

3. The online automated cleaning and continuous production electrospinning device according to claim 2 is characterized in that: The gear set comprises a gear ring (10) rotatably connected to the support frame (1); the other end of the spinning head (9) is fixedly connected to a transmission gear (11); the transmission gear (11) is meshed with the gear ring (10); and the second transmission assembly is in transmission cooperation with the gear ring (10).

4. The online automated cleaning and continuous production electrospinning device according to claim 1 is characterized in that: The first transmission assembly comprises a main shaft (12) fixedly connected between the two spinning turntables (4), the axis of the main shaft (12) is colinear with the axis of the spinning turntable (4), one end of the main shaft (12) is fixedly connected to a driven pulley (13), the support seat (2) is fixedly connected to a first transmission motor, the output shaft of the first transmission motor is fixedly connected to a driving pulley (14), and the driving pulley (14) and the driven pulley (13) are matched through a belt transmission; Wherein, the diameter of the driving pulley (14) is greater than the diameter of the driven pulley (13).

5. The online automated cleaning and continuous production electrospinning device according to claim 3 is characterized by: The second transmission assembly comprises a driving gear (15) rotatably connected to the support frame (1) via a rotating shaft, the driving gear (15) meshing with the gear ring (10), the other end of the rotating shaft being fixedly connected to a driven sprocket (16), the support seat (2) being fixedly connected to a second transmission motor, the output shaft of the second transmission motor being fixedly connected to a driving sprocket, and the driving sprocket and the driven sprocket (16) being matched via a chain transmission.

6. The online automated cleaning and continuous production electrospinning device according to claim 1, characterized in that: The lifting assembly comprises a lifting motor (17) fixedly connected to the top surface of the support seat (2); the output shaft of the lifting motor (17) is fixedly connected to a lead screw (18); the axis of the lead screw (18) is vertically arranged between the axis of the spinning turntable (4); the lifting frame (3) is fixedly connected to a fixing block (19); a threaded hole is provided on the fixing block (19); the lead screw (18) is inserted into the threaded hole and threadably matched with the threaded hole.

7. The online automated cleaning and continuous production electrospinning device according to claim 2 is characterized by: The spinning turntable (4) is a five-pointed star structure, and the five groups of spinning steel wires (5) are rotatably connected to the five end points of the spinning turntable (4) through the spinning heads (9) respectively.

8. The online automated cleaning and continuous production electrospinning device according to claim 1 is characterized by: The length of the spinning steel wire (5) is 1900 mm, the length of the spinning slot (6) is 1620 mm, and vertical slots are respectively provided on the front and rear sides of the spinning slot (6), and the vertical slots are correspondingly arranged between the spinning steel wire (5).

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