Multi-nozzle precision control electrostatic spinning machine

Abstract

The utility model discloses a multi-nozzle precision control electrostatic spinning machine, and relates to the technical field of electrostatic spinning machines. The spinning machine comprises a spinning machine shell, a moving mechanism and a wind-up roller are installed in an inner cavity of the spinning machine shell, the moving mechanism is provided with a moving plate, an advancing mechanism is installed on the moving plate, a push plate is installed on the advancing mechanism, a support is installed on the moving plate, a plurality of spray heads are installed on the support, and the spray heads are connected with the wind-up roller. A placing plate is mounted on the moving plate, a plurality of material conveying pieces are arranged on the placing plate, and a fixing mechanism is mounted at the top of the placing plate and located above the material conveying pieces. The insulating ceramic partition plates on the support are made of aluminum oxide ceramic materials and are distributed between every two nozzles at equal intervals, the adjacent nozzles are physically isolated, direct coupling of electric field lines between the adjacent nozzles can be blocked through the high insulation characteristic of insulating ceramics, and independent fusiform electric field distribution is formed by each nozzle.

Description

Technical Field

[0001] This utility model belongs to the field of electrospinning machine technology, and specifically relates to a multi-nozzle precision control electrospinning machine. Background Technology

[0002] Electrospinning technology uses a high-voltage electric field to form nanoscale fibers from spinning solution. Due to its simple process and strong fiber controllability, it has shown great application potential in fields such as biological tissue engineering scaffolds, air purification filter materials, and lithium-ion battery separators.

[0003] Traditional multi-nozzle devices often use a simple parallel arrangement. The high-voltage electric fields of adjacent nozzles are prone to coupling effects, causing the jet path to bend, bifurcate, or even attract each other, resulting in poor Taylor cone stability. Existing multi-nozzle devices often use a simple diversion design with shared pipelines, making it difficult to achieve independent and precise control of the flow rate of each nozzle. When the viscosity of the spinning solution is high, the pressure difference in the pipeline will cause deviations in the liquid output of each nozzle, leading to uneven fiber diameter or even nozzle blockage.

[0004] No effective solutions have yet been proposed to address the problems in the relevant technologies. Utility Model Content

[0005] In view of the problems in the related technologies, this utility model proposes a multi-nozzle precision control electrostatic spinning machine to overcome the above-mentioned technical problems existing in the existing related technologies.

[0006] To solve the above-mentioned technical problems, this utility model is achieved through the following technical solution:

[0007] This utility model relates to a multi-nozzle precision control electrostatic spinning machine, comprising a spinning machine housing, a moving mechanism and a take-up roller installed inside the housing, a moving plate on the moving mechanism, a traveling mechanism on the moving plate, a push plate on the traveling mechanism, a bracket on the moving plate, multiple nozzles on the bracket, a placement plate on the moving plate, multiple feeding components on the placement plate, a fixing mechanism on the top of the placement plate above the feeding components, feeding ends of the feeding components being respectively installed on the multiple nozzles, multiple insulating ceramic partitions on the bracket, the multiple nozzles being separated by the insulating ceramic partitions, and a cleaning mechanism on the multiple insulating ceramic partitions, the cleaning mechanism being installed on the bracket.

[0008] Furthermore, the moving mechanism includes two connecting frames, which are fixedly installed inside the bottom of the spinning machine housing. A drive motor is installed on one of the two connecting frames, and a first lead screw is fixedly installed at the output end of the drive motor. The other end of the first lead screw is rotatably installed on the other connecting frame.

[0009] Furthermore, a guide rod is installed between the two connecting frames, the movable plate is threadedly installed with the first lead screw, and the movable plate is slidably installed with the guide rod.

[0010] Furthermore, the traveling mechanism includes a servo motor and two slide bars. The servo motor is fixedly mounted on the moving plate, and a second lead screw is fixedly mounted on the output end of the servo motor.

[0011] Furthermore, the two slide rods are fixedly mounted on the movable plate, the push plate is threadedly mounted to the second lead screw, and the push plate is slidably mounted to the two slide rods.

[0012] Furthermore, the fixing mechanism includes two straight rods, a pressure plate, and a threaded rod. The two straight rods are symmetrically mounted on the placement plate, and the two straight rods are slidably mounted with the pressure plate.

[0013] Furthermore, the threaded rod is rotatably mounted on the placement plate, and the threaded rod is threadedly installed on the pressure plate. The placement plate and the pressure plate are provided with multiple semi-circular placement grooves at their close ends, and the material conveying component is located in the semi-circular placement grooves.

[0014] Furthermore, the cleaning mechanism includes a movable frame, with electric push rods symmetrically mounted at both ends of the movable frame, and two of the electric push rods mounted on the bracket.

[0015] Furthermore, multiple sleeve frames are fixedly installed on the movable frame, and the multiple sleeve frames are respectively sleeved around the multiple insulating ceramic partitions.

[0016] Furthermore, each of the multiple sleeve frames is fixedly installed with a scraper, which is sleeved on the outer wall of the insulating ceramic partition.

[0017] This utility model has the following beneficial effects:

[0018] The insulating ceramic partition on the bracket of this utility model is made of alumina ceramic material and is distributed at equal intervals between multiple nozzles to physically isolate adjacent nozzles. The high insulation properties of the insulating ceramic can block the direct coupling of electric field lines between adjacent nozzles, so that each nozzle forms an independent spindle-shaped electric field distribution.

[0019] This invention starts the traveling mechanism, which drives the push plate to move linearly at a constant speed, pushing the corresponding components of the feeding component. The corresponding components of the feeding component apply stable pressure to the spinning liquid in the feeding component through piston-like pushing, and deliver the liquid to the corresponding nozzle. By setting multiple feeding components to deliver the liquid to the corresponding nozzle, the traditional shared pipeline diversion mode is abandoned, and the problem of liquid output deviation of each nozzle caused by viscosity difference and pipeline pressure difference is solved.

[0020] In the electrospinning process, the spinning solution ejected from the nozzle may splash onto the surface of the insulating ceramic separator due to flow rate fluctuations and electric field disturbances, forming solid residues. Therefore, after the electrospinning process is completed, the cleaning mechanism is activated. The cleaning mechanism moves away from the support, that is, it moves in a straight line along the direction of the insulating ceramic separator. During the movement, the scraping component of the cleaning mechanism can scrape off the solid residues, restoring the insulating ceramic separator to a clean state, ensuring its insulation performance and isolation effect on the electric field of adjacent nozzles, and thus preparing it for the next spinning process.

[0021] Of course, any product implementing this utility model does not necessarily need to achieve all of the advantages described above at the same time. Attached Figure Description

[0022] To more clearly illustrate the technical solutions of the utility model embodiments, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0023] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0024] Figure 2 This is a view of the interior of the spinning machine casing of this utility model;

[0025] Figure 3 This is a detailed overall view of the moving mechanism and the traveling mechanism of this utility model;

[0026] Figure 4 This is a detailed overall drawing of the fixing mechanism of this utility model;

[0027] Figure 5 This is a schematic diagram of the insulating ceramic partition of this utility model;

[0028] Figure 6 This is a detailed overall drawing of the cleaning mechanism of this utility model;

[0029] Figure 7 This is a schematic diagram of the semi-circular placement groove on the pressure plate of this utility model.

[0030] The attached diagram lists the components represented by each number as follows:

[0031] 1. Spinning machine housing; 2. Moving mechanism; 201. Connecting frame; 202. Drive motor; 203. First lead screw; 204. Guide rod; 3. Moving plate; 4. Traveling mechanism; 401. Servo motor; 402. Slide rod; 403. Second lead screw; 5. Push plate; 6. Bracket; 7. Nozzle; 8. Placement plate; 9. Feeding component; 10. Fixing mechanism; 1001. Straight rod; 1002. Pressure plate; 1003. Threaded rod; 11. Insulating ceramic partition; 12. Cleaning mechanism; 1201. Moving frame; 1202. Electric push rod; 1203. Sleeve frame; 1204. Scraper; 13. Take-up roller; 14. Semi-circular placement groove. Detailed Implementation

[0032] The technical solutions of the utility model embodiments will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the utility model, and not all embodiments. Based on the embodiments of the utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the utility model.

[0033] In the description of this utility model, it should be understood that the terms "opening", "upper", "lower", "top", "middle", "inner", etc., which indicate orientation or positional relationship, are only for the convenience of describing the utility model and simplifying the description, and do not indicate or imply that the components or elements referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on the utility model.

[0034] Please see Figures 1-7 As shown, this utility model is a multi-nozzle precision control electrostatic spinning machine, including a spinning machine housing 1. A moving mechanism 2 and a take-up roller 13 are installed inside the spinning machine housing 1. The moving mechanism 2 is provided with a moving plate 3. A traveling mechanism 4 is installed on the moving plate 3. A push plate 5 is installed on the traveling mechanism 4. A bracket 6 is installed on the moving plate 3. Multiple nozzles 7 are installed on the bracket 6. A placement plate 8 is installed on the moving plate 3. Multiple feeding components 9 are provided on the placement plate 8. A fixing mechanism 10 is installed on the top of the placement plate 8 and above the multiple feeding components 9. The feeding ends of the multiple feeding components 9 are respectively installed on the multiple nozzles 7. Multiple insulating ceramic partitions 11 are installed on the bracket 6. The multiple nozzles 7 are separated by the insulating ceramic partitions 11. A cleaning mechanism 12 is provided on the multiple insulating ceramic partitions 11. The cleaning mechanism 12 is installed on the bracket 6.

[0035] First, multiple feeding components 9 on the placement plate 8 independently store spinning liquid. After placing multiple feeding components 9 on the top of the placement plate 8, the operator manually rotates some parts of the fixing mechanism 10 to move the fixing mechanism 10 closer to the multiple feeding components 9. Then, the fixing mechanism 10 and the placement plate 8 are used to fix the multiple feeding components 9 between them, preventing the multiple feeding components 9 from shifting during operation. Subsequently, the traveling mechanism 4 is started to drive the push plate 5 to move linearly at a constant speed, pushing the corresponding parts of the feeding components 9 (the feeding components 9 are existing technology and will not be described in detail here). The corresponding parts of the feeding components 9 apply stable pressure to the spinning liquid in the feeding components 9 through piston-like pushing, and deliver the liquid to the corresponding nozzle 7. By setting multiple feeding components 9 to deliver the liquid to the corresponding nozzle 7 separately, the traditional shared pipeline diversion mode is abandoned, and the problem of the liquid output deviation of each nozzle 7 caused by viscosity difference and pipeline pressure difference is solved.

[0036] Secondly, the insulating ceramic partition 11 on the bracket 6 is made of alumina ceramic material and is equidistantly distributed between each pair of multiple nozzles 7 to physically isolate adjacent nozzles 7. The high insulation properties of the insulating ceramic can block the direct coupling of electric field lines between adjacent nozzles 7, so that each nozzle forms an independent spindle-shaped electric field distribution.

[0037] Furthermore, during the electrospinning process, the spinning solution sprayed from the nozzle 7 may splash onto the surface of the insulating ceramic partition 11 due to flow rate fluctuations and electric field disturbances, forming solid residues. Therefore, after the electrospinning process is completed, the cleaning mechanism 12 is activated. The cleaning mechanism 12 will move away from the support 6, that is, move in a straight line along the direction of the insulating ceramic partition 11. During the movement, the scraping component of the cleaning mechanism 12 can scrape off the solid residues, so that the insulating ceramic partition 11 is restored to a clean state, ensuring its insulation performance and isolation effect on the electric field of the adjacent nozzle 7, thus preparing for the next spinning process.

[0038] Finally, this is existing technology and will not be described in detail. During the electrospinning process, the moving mechanism 2 works, causing the moving plate 3 mounted on it to move. The moving plate 3 drives the support 6 to move, and the support 6 drives multiple nozzles 7 to move. At the same time, the moving plate 3 also drives the traveling mechanism 4, the push plate 5, the placement plate 8, multiple material conveying components 9, and the fixing mechanism 10 to move, and simultaneously starts the take-up roller 13 to rotate. Through the forward and reverse drive of the moving mechanism 2, the multiple nozzles 7 can reciprocate along the front and back direction of the take-up roller 13, so that the spinning liquid sprayed by the multiple nozzles 7 forms nano-sized fibers under the action of the high voltage electric field and is evenly wrapped on the take-up roller 13.

[0039] In one embodiment, the moving mechanism 2 includes two connecting frames 201, which are fixedly installed at the bottom of the spinning machine housing 1. A drive motor 202 is installed on one of the two connecting frames 201, and a first lead screw 203 is fixedly installed at the output end of the drive motor 202. The other end of the first lead screw 203 is rotatably installed on the other connecting frame 201.

[0040] A guide rod 204 is installed between the two connecting frames 201. The movable plate 3 is threadedly installed with the first lead screw 203, and the movable plate 3 is slidably installed with the guide rod 204.

[0041] During electrospinning, a drive motor 202 on a connecting frame 201 is started. The output end of the drive motor 202 drives the first lead screw 203 fixedly mounted on it to move. The other end of the first lead screw 203 is rotatably mounted on another connecting frame 201, ensuring the stable rotation of the first lead screw 203. Since the moving plate 3 is threadedly installed with the first lead screw 203, a guide rod 204 is installed between the two connecting frames 201, and the moving plate 3 and the guide rod 204 are slidably installed. The guide rod 204 plays a guiding role, allowing the moving plate 3 to move only along the guide rod 204. Subsequently, the first lead screw 203 will drive the moving plate 3 to move linearly along the two guide rods 204. Referring to the working principle of this part, the movement of the moving plate 3 enables multiple nozzles 7 to reciprocate along the front and back direction of the take-up roller 13, thereby causing the spinning liquid sprayed by the multiple nozzles 7 to form nano-sized fibers under the action of a high-voltage electric field and then be uniformly wound on the take-up roller 13.

[0042] In one embodiment, the traveling mechanism 4 includes a servo motor 401 and two slide bars 402. The servo motor 401 is fixedly mounted on the moving plate 3, and a second lead screw 403 is fixedly mounted on the output end of the servo motor 401.

[0043] The two slide rods 402 are fixedly installed on the movable plate 3, the push plate 5 is threadedly installed with the second lead screw 403, and the push plate 5 is slidably installed with the two slide rods 402.

[0044] The fixing mechanism 10 includes two straight rods 1001, a pressure plate 1002, and a threaded rod 1003. The two straight rods 1001 are symmetrically installed on the placement plate 8, and the two straight rods 1001 are slidably installed with the pressure plate 1002.

[0045] The threaded rod 1003 is rotatably mounted on the placement plate 8. The threaded rod 1003 is threadedly installed on the pressure plate 1002. The placement plate 8 and the pressure plate 1002 are provided with a plurality of semi-circular placement grooves 14 at their close ends. The material conveying component 9 is located in the semi-circular placement grooves 14.

[0046] First, multiple conveying components 9 are placed into the multiple semi-circular placement slots 14 on the placement plate 8. Then, the operator manually rotates the threaded rod 1003. Since the threaded rod 1003 is threadedly installed on the pressure plate 1002 and is also rotatably mounted on the placement plate 8, the rotational motion of the threaded rod 1003 is converted into the linear motion of the pressure plate 1002 along the straight rod 1001. As the threaded rod 1003 rotates, the pressure plate 1002 gradually moves closer to the placement plate 8. The semi-circular placement slots 14 on the pressure plate 1002 and the semi-circular placement slots 14 on the placement plate 8 cooperate with each other, tightly wrapping the outer wall of the conveying component 9, thereby firmly fixing the conveying component 9. Between the placement plate 8 and the pressure plate 1002, when the electrospinning machine needs to transport spinning liquid, the servo motor 401 is started. The output end of the servo motor 401 drives the second lead screw 403 fixedly installed on it to rotate. Since the push plate 5 is threadedly installed with the second lead screw 403, the rotational motion of the second lead screw 403 is converted into the linear motion of the push plate 5. The slide bar 402 plays a guiding and stabilizing role, thereby causing the push plate 5 to slide along the two slide bars 402. When it moves towards the conveying component 9, it pushes the corresponding component of the conveying component 9. The corresponding component of the conveying component 9 applies stable pressure to the spinning liquid in the conveying component 9 through piston-like pushing, and transports the liquid to the corresponding nozzle 7.

[0047] In one embodiment, the cleaning mechanism 12 includes a movable frame 1201, with electric push rods 1202 symmetrically mounted at both ends of the movable frame 1201, and the two electric push rods 1202 are mounted on the bracket 6.

[0048] Multiple sleeve frames 1203 are fixedly installed on the movable frame 1201, and the multiple sleeve frames 1203 are respectively sleeved around the multiple insulating ceramic partitions 11.

[0049] Each of the multiple sleeve frames 1203 is fixedly installed with a scraper 1204, which is sleeved on the outer wall of the insulating ceramic partition 11.

[0050] After the electrospinning process is completed, two electric push rods 1202 are started to work simultaneously. The two electric push rods 1202 will simultaneously drive the moving frame 1201 to move away from the support 6. The moving frame 1201 drives the multiple sleeve frames 1203 fixedly installed on it to move. Then, the multiple sleeve frames 1203 drive the scrapers 1204 on their respective sleeves to move along the outer wall of the insulating ceramic partition 11. Since the scrapers 1204 are sleeved on the outer wall of the insulating ceramic partition 11, the scrapers 1204 scrape off the solid residue on the outer wall of the insulating ceramic partition 11, so that the insulating ceramic partition 11 is restored to a clean state, ensuring its insulation performance and isolation effect on the electric field of the adjacent nozzle 7, thus preparing for the next spinning process.

[0051] In the description of this specification, references to terms such as "an embodiment," "example," "specific example," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the utility model. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0052] The preferred embodiments of the utility model disclosed above are merely illustrative of the utility model. These preferred embodiments do not exhaustively describe all details, nor do they limit the utility model to the specific implementations described. Clearly, many modifications and variations can be made based on the content of this specification. This specification selects and specifically describes these embodiments to better explain the principles and practical applications of the utility model, thereby enabling those skilled in the art to better understand and utilize it. The utility model is limited only by the claims and their full scope and equivalents.

Claims

1. A multi-nozzle precision control electrostatic spinning machine, comprising a spinning machine housing (1), wherein a moving mechanism (2) and a take-up roller (13) are installed in the inner cavity of the spinning machine housing (1), the moving mechanism (2) is provided with a moving plate (3), a traveling mechanism (4) is installed on the moving plate (3), a push plate (5) is installed on the traveling mechanism (4), a bracket (6) is installed on the moving plate (3), a plurality of nozzles (7) are installed on the bracket (6), a placement plate (8) is installed on the moving plate (3), and a plurality of material conveying components (9) are provided on the placement plate (8), characterized in that: A fixing mechanism (10) is installed on the top of the placement plate (8) and above the plurality of material conveying components (9). The material conveying ends of the plurality of material conveying components (9) are respectively installed on the plurality of nozzles (7). A plurality of insulating ceramic partitions (11) are installed on the bracket (6). The plurality of nozzles (7) are separated by the insulating ceramic partitions (11). A cleaning mechanism (12) is provided on the plurality of insulating ceramic partitions (11). The cleaning mechanism (12) is installed on the bracket (6).

2. The multi-nozzle precision control electrospinning machine according to claim 1, characterized in that, The moving mechanism (2) includes two connecting frames (201), which are fixedly installed at the bottom of the spinning machine housing (1). A drive motor (202) is installed on one of the two connecting frames (201), and a first lead screw (203) is fixedly installed at the output end of the drive motor (202). The other end of the first lead screw (203) is rotatably installed on the other connecting frame (201).

3. The multi-nozzle precision control electrospinning machine according to claim 2, characterized in that, A guide rod (204) is installed between the two connecting frames (201), the movable plate (3) is threadedly installed with the first lead screw (203), and the movable plate (3) is slidably installed with the guide rod (204).

4. The multi-nozzle precision control electrospinning machine according to claim 1, characterized in that, The traveling mechanism (4) includes a servo motor (401) and two slide bars (402). The servo motor (401) is fixedly mounted on the moving plate (3), and a second lead screw (403) is fixedly mounted on the output end of the servo motor (401).

5. The multi-nozzle precision control electrostatic spinning machine according to claim 4, characterized in that, The two slide rods (402) are fixedly installed on the movable plate (3), the push plate (5) is threadedly installed with the second lead screw (403), and the push plate (5) is slidably installed with the two slide rods (402).

6. The multi-nozzle precision control electrostatic spinning machine according to claim 1, characterized in that, The fixing mechanism (10) includes two straight rods (1001), a pressure plate (1002) and a threaded rod (1003). The two straight rods (1001) are symmetrically installed on the placement plate (8), and the two straight rods (1001) are slidably installed with the pressure plate (1002).

7. A multi-nozzle precision control electrostatic spinning machine according to claim 6, characterized in that, The threaded rod (1003) is rotatably mounted on the placement plate (8). The threaded rod (1003) is threadedly mounted to the pressure plate (1002). The placement plate (8) and the pressure plate (1002) are provided with multiple semi-circular placement grooves (14) at their close ends. The material conveying component (9) is located in the semi-circular placement grooves (14).

8. The multi-nozzle precision control electrostatic spinning machine according to claim 1, characterized in that, The cleaning mechanism (12) includes a movable frame (1201), and electric push rods (1202) are symmetrically installed at both ends of the movable frame (1201). The two electric push rods (1202) are installed on the bracket (6).

9. A multi-nozzle precision control electrostatic spinning machine according to claim 8, characterized in that, Multiple sleeve frames (1203) are fixedly installed on the movable frame (1201), and the multiple sleeve frames (1203) are respectively sleeved around the multiple insulating ceramic partitions (11).

10. A multi-nozzle precision control electrospinning machine according to claim 9, characterized in that, Each of the multiple sleeve frames (1203) is fixedly installed with a scraper (1204), and the scraper (1204) is sleeved on the outer wall of the insulating ceramic partition (11).

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