Continuous electrostatic spinning solution supply mechanism

Abstract

The utility model relates to the technical field of electrostatic spinning solution continuous liquid supply mechanisms, and discloses an electrostatic spinning solution continuous liquid supply mechanism which comprises a bottom plate, a fixing frame is fixedly installed at the top of the bottom plate, and automatic heating assemblies are arranged at the top of the fixing frame and in the fixing frame. The automatic heating assembly comprises a first motor and heat dissipation fins, the first motor is connected with a moving block through a lead screw, through the arranged automatic heating assembly, a worker can start the first motor, the lead screw is driven to rotate through the first motor, and the moving block and a heating shell on a connecting plate are driven to move up and down; by means of the technical scheme, the heating wire can be accurately and automatically adjusted to the outside of the electrostatic spinning nozzle, heating operation on the electrostatic spinning nozzle is achieved, in this way, coagulum at the electrostatic spinning nozzle can be effectively softened, the common nozzle blocking problem in traditional electrostatic spinning is avoided, and therefore spinning continuity and fiber quality are effectively improved.

Description

Technical Field

[0001] This utility model relates to the technical field of continuous electrospinning solution supply mechanism, and in particular to a continuous electrospinning solution supply mechanism. Background Technology

[0002] Electrospinning is a method for preparing nanofibers by converting polymer solutions or melts into nanofibers using a high-voltage electric field. Because it can produce fiber materials with excellent properties such as high specific surface area and controllable porosity, it shows great application potential in many fields, including biomedicine, filtration materials, electronic devices, and energy. In the electrospinning process, a continuous and stable supply of solution is crucial to ensuring the smooth progress of the spinning process and the uniformity of fiber quality. Traditional solution supply methods mainly use syringes or simple storage bottles in conjunction with peristaltic pumps. Syringe supply has limited capacity and requires frequent replacement during long spinning processes, which not only interrupts the spinning process but also easily introduces air bubbles, causing solution pressure fluctuations and resulting in uneven fiber diameter, making it difficult to meet the needs of continuous industrial production. While simple storage bottle supply systems increase the storage capacity, the solution is prone to precipitation and stratification within the bottle, and there is a lack of effective mixing methods, leading to instability in key parameters such as solution concentration and viscosity, which seriously affects spinning efficiency and fiber performance.

[0003] The applicant discovered through a search that a Chinese patent, "A Continuous Supply Mechanism for Electrospinning Solution," with publication (announcement) number "CN220520700U," discloses a continuous supply mechanism for electrospinning solution. This patent primarily uses a movable connecting component to adjust the position of the heating shell and heating coil. When heating the electrospinning nozzle is required, the heating shell and heating coil can be moved to their corresponding height. A positioning component locks the sliding plate in place, thus positioning the heating shell and heating coil. However, this patent cannot precisely and automatically adjust the heating coil to the outside of the electrospinning nozzle to soften the condensate. In actual use, the inability to automatically adjust the heating coil position necessitates frequent manual checks and adjustments, increasing the workload and labor intensity of operators and making it difficult to guarantee the timeliness and accuracy of operation. Therefore, we propose a continuous supply mechanism for electrospinning solution. Utility Model Content

[0004] The purpose of this invention is to provide a continuous electrospinning solution supply mechanism to solve the problems mentioned in the background art, such as the inability to accurately and automatically adjust the heating wire to the outside of the electrospinning nozzle to soften the condensate. In actual use, the heating wire position cannot be automatically adjusted, which requires frequent manual inspection and adjustment, thus increasing the workload and labor intensity of the operator, and also making it difficult to ensure the timeliness and accuracy of the operation.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a continuous electrospinning solution supply mechanism, comprising a base plate, a fixed frame fixedly installed on the top of the base plate, an automatic heating component provided on the top and inside of the fixed frame, the automatic heating component comprising a first motor and heat dissipation fins, the first motor being connected to a moving block via a lead screw, the moving block being connected to a heating shell and a heating wire via a connecting plate, sliders being fixedly connected to both sides of the inner wall of the fixed frame, and grooves being provided on both outer walls of the connecting plate, the sliders being slidably connected to the inside of the grooves.

[0006] As a preferred embodiment, a material pump is fixedly installed at the top center of the base plate. An input pipe is fixedly connected to the input port of the material pump. A liquid storage tank is fixedly connected to the left end of the input pipe. The liquid storage tank is also fixedly installed at the top of the base plate and located to the left of the material pump. An output pipe is fixedly connected to the output port of the material pump. An electrostatic spinning nozzle is fixedly connected to the right end of the output pipe.

[0007] As a preferred embodiment, the first motor is fixedly installed on the top of the mounting frame, the upper end of the lead screw is fixedly connected to the output end of the first motor, the outer wall of the lead screw is rotatably connected to the inner wall of the top of the mounting frame, and the lower end of the lead screw is rotatably connected to the upper surface of the base plate.

[0008] As a preferred embodiment, the inner wall of the movable block is threadedly connected to the outer wall of the lead screw, the rear end of the connecting plate is fixedly connected to the circumferential surface of the movable block, the front end of the connecting plate is fixedly connected to the circumferential surface of the heating shell, the heating wire is fixedly installed on the inner wall of the heating shell, and the heat dissipation fins are fixedly installed on the outer wall of the heating shell.

[0009] As a preferred embodiment, the liquid storage tank is equipped with a mixing and agitating assembly, which includes a second motor. The second motor is fixedly installed on the top of the liquid storage tank, and a stirring rod is fixedly connected to the output end of the second motor.

[0010] As a preferred embodiment, the outer wall of the stirring rod is rotatably connected to the top inner wall of the storage tank, a spiral blade is fixedly connected to the outer wall of the stirring rod, and three sets of baffles are fixedly connected to the inner wall of the storage tank.

[0011] The technical effects and advantages of this utility model are as follows:

[0012] 1. With the automatic heating component, the operator can start the first motor, which drives the lead screw to rotate, causing the heating shell on the moving block and connecting plate to move up and down. This can accurately and automatically adjust the heating wire to the outside of the electrostatic spinning nozzle, thereby heating the electrostatic spinning nozzle. This can effectively soften the condensate at the electrostatic spinning nozzle and avoid the nozzle clogging problem common in traditional electrostatic spinning, thus effectively improving spinning continuity and fiber quality.

[0013] 2. Through the set mixing and stirring components, the staff starts the second motor to drive the stirring rod and spiral blades to rotate. This can push the solution to flow axially and radially, quickly break up the layers, accelerate dissolution, and achieve uniform mixing. At the same time, the three sets of baffles on the inner wall of the storage tank work together with the spiral blades to further enhance the mixing effect of the solution. When the spiral blades stir the solution, the baffles change the flow direction of the solution and generate turbulence, making the solution form a stronger turbulence. This can effectively eliminate the dead zone of stirring and avoid insufficient local mixing of the solution. Attached Figure Description

[0014] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0015] Figure 2 This is a schematic diagram of the overall partial structure of this utility model;

[0016] Figure 3 This is a schematic diagram of the automatic heating component structure of this utility model;

[0017] Figure 4 for Figure 3 Diagram showing the breakdown of the middle section;

[0018] Figure 5 This is a partial structural diagram of the mixing and stirring component of this utility model;

[0019] Figure 6 This is a schematic diagram of the internal structure of the liquid storage tank of this utility model.

[0020] In the diagram: 1. Base plate; 2. Feed pump; 3. Input pipe; 4. Output pipe; 5. Electrostatic spinning nozzle; 6. Fixing frame; 7. Liquid storage tank; 8. Automatic heating assembly; 801. First motor; 802. Lead screw; 803. Moving block; 804. Connecting plate; 805. Slide groove; 806. Sliding block; 807. Heating shell; 808. Heating wire; 809. Heat dissipation fins; 9. Mixing and stirring assembly; 901. Second motor; 902. Stirring rod; 903. Spiral blade; 904. Baffle plate. Detailed Implementation

[0021] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0022] Please see the appendix Figure 1 - Appendix Figure 4 An electrospinning solution continuous supply mechanism includes a base plate 1, a fixed frame 6 fixedly installed on the top of the base plate 1, an automatic heating component 8 provided on the top and inside of the fixed frame 6, the automatic heating component 8 including a first motor 801 and heat dissipation fins 809, the first motor 801 is connected to a moving block 803 through a lead screw 802, the moving block 803 is connected to a heating shell 807 and a heating wire 808 through a connecting plate 804, sliders 806 are fixedly connected to both sides of the inner wall of the fixed frame 6, and grooves 805 are provided on both sides of the outer wall of the connecting plate 804, the sliders 806 are slidably connected to the inside of the grooves 805.

[0023] The mounting bracket 6 is fixedly installed on the top of the base plate 1 to support and fix components such as the automatic heating assembly 8, providing a support frame for the entire heating structure.

[0024] A material pump 2 is fixedly installed at the top center of the base plate 1. An input pipe 3 is fixedly connected to the input port of the material pump 2. A liquid storage tank 7 is fixedly connected to the left end of the input pipe 3. The liquid storage tank 7 is also fixedly installed at the top of the base plate 1 and located to the left of the material pump 2. An output pipe 4 is fixedly connected to the output port of the material pump 2. An electrostatic spinning nozzle 5 is fixedly connected to the right end of the output pipe 4.

[0025] The input pipe 3 is the input port connecting the storage tank 7 and the pump 2, which transports the solution in the storage tank 7 to the inside of the pump 2. A fixing block is fixedly installed at the bottom of the pump 2, and the fixing block is fixedly connected to the base plate 1.

[0026] The first motor 801 is fixedly installed on the top of the fixing frame 6. The upper end of the lead screw 802 is fixedly connected to the output end of the first motor 801. The outer wall of the lead screw 802 is rotatably connected to the inner wall of the top of the fixing frame 6. The lower end of the lead screw 802 is rotatably connected to the upper surface of the base plate 1. The inner wall of the moving block 803 is threadedly connected to the outer wall of the lead screw 802. The rear end of the connecting plate 804 is fixedly connected to the circumferential surface of the moving block 803. The front end of the connecting plate 804 is fixedly connected to the circumferential surface of the heating shell 807. The heating wire 808 is fixedly installed on the inner wall of the heating shell 807. The heat dissipation fins 809 are fixedly installed on the outer wall of the heating shell 807.

[0027] The mounting bracket 6 has a hollowed-out section. The slider 806 is fixedly installed on the inner walls of both sides of the hollowed-out area. The heat dissipation fins 809 are fixed on the outer wall of the heating shell 807, which can increase the heat dissipation area of ​​the heating shell 807, dissipate the heat on the surface of the heating shell 807 to the surrounding environment, prevent the heating shell 807 from overheating, and help maintain the temperature uniformity of the heating shell 807, avoiding local overheating and damage to the components.

[0028] Specifically, through the automatic heating component 8, the operator can turn on the first motor 801, which drives the lead screw 802 to rotate, causing the moving block 803 and the heating shell 807 on the connecting plate 804 to move up and down. This allows for precise and automated adjustment of the heating wire 808 to the outside of the electrostatic spinning nozzle 5, thus achieving the heating operation of the electrostatic spinning nozzle 5. This effectively softens the condensate at the electrostatic spinning nozzle 5, preventing the nozzle clogging problem common in traditional electrostatic spinning, thereby effectively improving spinning continuity and fiber quality.

[0029] Please see the appendix Figure 1 Appendix Figure 5 and appendix Figure 6 The storage tank 7 is equipped with a mixing and stirring assembly 9. The mixing and stirring assembly 9 includes a second motor 901, which is fixedly installed on the top of the storage tank 7. The output end of the second motor 901 is fixedly connected to a stirring rod 902. The outer wall of the stirring rod 902 is rotatably connected to the inner wall of the top of the storage tank 7. Spiral blades 903 are fixedly connected to the outer wall of the stirring rod 902. Three sets of baffles 904 are fixedly connected to the inner wall of the storage tank 7.

[0030] The baffle 904 is fixedly connected to the inner wall of the liquid storage tank 7. There are three sets in total. Its function is to change the flow direction of the solution when the solution is stirred by the stirring rod 902 and the spiral blade 903, thereby creating a turbulence effect, further enhancing the mixing degree of the solution, making the solution more uniform, and also helping to improve the stirring efficiency, reduce the stirring dead zone, and ensure that the solution in the entire liquid storage tank 7 can be fully stirred and mixed.

[0031] Specifically, through the mixing and stirring component 9, the operator turns on the second motor 901, which drives the stirring rod 902 and the spiral blade 903 to rotate. This pushes the solution to flow axially and radially, quickly breaking up the layers, accelerating dissolution, and achieving uniform mixing. At the same time, the three sets of baffles 904 on the inner wall of the storage tank 7 work in conjunction with the spiral blade 903 to further improve the mixing effect of the solution. When the spiral blade 903 stirs the solution, the baffles 904 can change the flow direction of the solution, generating turbulence and making the solution form stronger turbulence. This can effectively eliminate dead zones in the stirring and prevent the solution from being insufficiently mixed in certain areas.

[0032] The working principle of this utility model is as follows: This utility model is a continuous solution supply mechanism for electrospinning. First, the storage tank 7 is fixed to the top of the base plate 1 to store the electrospinning solution. The pump 2 draws the solution from the storage tank 7 through the input pipe 3, and then delivers the solution to the electrospinning nozzle 5 through the output pipe 4, providing a continuous solution supply for the spinning process. Next, the operator starts the second motor 901, which drives the stirring rod 902 to rotate. The spiral blades 903 fixed on the stirring rod 902 rotate accordingly, pushing the solution to flow axially and radially. At the same time, the three sets of baffles 904 on the inner wall of the storage tank 7 change the flow direction of the solution, generating turbulence and making the solution form strong turbulence, eliminating dead zones in the stirring. Then, when it is necessary to supply the solution for electrospinning... When the nozzle 5 is heated, the operator starts the first motor 801, which drives the lead screw 802 to rotate. The moving block 803, which is threadedly connected to the lead screw 802, moves up and down along the lead screw 802. Through the connecting plate 804, it drives the heating shell 807 to move synchronously. At the same time, the slide 805 moves synchronously on the surface of the slider 806. The heating wire 808, which is fixed on the inner wall of the heating shell 807, moves with the heating shell 807 to the outside of the electrostatic spinning nozzle 5 to heat the nozzle, soften the condensate at the nozzle, and prevent blockage. The heat dissipation fins 809 on the outer wall of the heating shell 807 increase the heat dissipation area and dissipate excess heat to the surrounding environment to prevent the heating shell 807 from overheating, while maintaining temperature uniformity and ensuring stable heating effect.

[0033] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A continuous liquid supply mechanism for electrospinning solution, comprising a base plate (1), characterized in that: A fixing frame (6) is fixedly installed on the top of the base plate (1). An automatic heating component (8) is provided on the top and inside of the fixing frame (6). The automatic heating component (8) includes a first motor (801) and heat dissipation fins (809). The first motor (801) is connected to a moving block (803) through a lead screw (802). The moving block (803) is connected to a heating shell (807) and a heating wire (808) through a connecting plate (804). Slider blocks (806) are fixedly connected to both sides of the inner wall of the fixing frame (6). Slide grooves (805) are provided on both sides of the outer wall of the connecting plate (804). The sliders (806) are slidably connected to the inside of the slide grooves (805).

2. The mechanism for continuously supplying electrospinning solution according to claim 1, wherein: A material pump (2) is fixedly installed at the top center of the base plate (1). An input pipe (3) is fixedly connected to the input port of the material pump (2). A liquid storage tank (7) is fixedly connected to the left end of the input pipe (3). The liquid storage tank (7) is also fixedly installed at the top of the base plate (1) and located to the left of the material pump (2). An output pipe (4) is fixedly connected to the output port of the material pump (2). An electrostatic spinning nozzle (5) is fixedly connected to the right end of the output pipe (4).

3. The continuous electrospinning solution supply mechanism according to claim 2, characterized in that: The first motor (801) is fixedly installed on the top of the fixed frame (6), the upper end of the lead screw (802) is fixedly connected to the output end of the first motor (801), the outer wall of the lead screw (802) is rotatably connected to the inner wall of the top of the fixed frame (6), and the lower end of the lead screw (802) is rotatably connected to the upper surface of the base plate (1).

4. The mechanism for continuously supplying electrospinning solution according to claim 3, wherein: The inner wall of the movable block (803) is threaded to the outer wall of the lead screw (802). The rear end of the connecting plate (804) is fixedly connected to the circumferential surface of the movable block (803). The front end of the connecting plate (804) is fixedly connected to the circumferential surface of the heating shell (807). The heating wire (808) is fixedly installed on the inner wall of the heating shell (807). The heat dissipation fins (809) are fixedly installed on the outer wall of the heating shell (807).

5. The mechanism for continuous supply of electrospinning solution according to claim 4, characterized in that: The liquid storage tank (7) is equipped with a mixing and stirring assembly (9), which includes a second motor (901). The second motor (901) is fixedly installed on the top of the liquid storage tank (7), and a stirring rod (902) is fixedly connected to the output end of the second motor (901).

6. The mechanism for continuously supplying electrospinning solution according to claim 5, wherein: The outer wall of the stirring rod (902) is rotatably connected to the top inner wall of the storage tank (7). A spiral blade (903) is fixedly connected to the outer wall of the stirring rod (902), and three sets of baffles (904) are fixedly connected to the inner wall of the storage tank (7).

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