Electrostatic spinning device

Abstract

The utility model discloses an electrostatic spinning device, and particularly relates to the technical field of electrostatic spinning, the electrostatic spinning device comprises a spinning assembly, a receiving assembly, a control device and a high-voltage direct-current power supply, the spinning assembly comprises a stainless steel plain-end needle head, the stainless steel plain-end needle head is communicated with a Luer taper, the stainless steel plain-end needle head is provided with a first clamp, and a second clamp is arranged on the stainless steel plain-end needle head. The receiving assembly comprises a flat plate receiver, aluminum-foil paper is arranged on the flat plate receiver, the control device comprises an injection pump, and an injector is arranged at the top of the injection pump. The spinning assembly, the receiving assembly, the control device and the high-voltage direct-current power supply are combined to form the electrostatic spinning device which is easy and convenient to operate, the flow speed and time of the injector can be automatically adjusted through the adjusting mechanism, the operation process is remarkably simplified, the usability and production efficiency of the device are improved, meanwhile, the technical threshold is lowered, and the production cost is lowered. The method is suitable for application scenes of laboratories, and has remarkable technical advantages and practical application value.

Description

Technical Field

[0001] The utility model relates to the technical field of electrostatic spinning, and more specifically to an electrostatic spinning device. Background Art

[0002] Electrospinning technology is widely used in the production of nanofibers. It utilizes electric forces to stretch polymer solutions or melts into nano- or micron-sized fibers. Due to its excellent physical and chemical properties, it is widely used in a variety of fields, including energy storage materials, catalytic materials, biomaterials, and medical devices. Traditional electrospinning equipment primarily consists of a high-voltage power supply, a spinneret, a receiving device, and a control system. For example, prior art publication number CN212316294U discloses an electrospinning device and system.

[0003] Although electrospinning technology has made significant progress in recent years, existing electrospinning devices still face challenges in practical application, including high operational complexity and low efficiency. Debugging specific parameters requires considerable time and wastes a significant amount of sample material, and the high technical threshold limits their widespread adoption in small-scale production and laboratory applications. Therefore, there is an urgent need for an electrospinning device that is simple to operate and improves its usability, production efficiency, and laboratory applicability. Summary of the Invention

[0004] In order to overcome the above-mentioned defects of the prior art, the utility model provides an electrospinning device to solve the problems of high operational complexity, low operational efficiency and high technical threshold.

[0005] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: an electrospinning device, comprising a spinning assembly, a receiving assembly, a control device and a high-voltage DC power supply, the spinning assembly comprising a stainless steel flat-end needle, the stainless steel flat-end needle being connected to a Luer connector, the stainless steel flat-end needle being provided with a clamp 1, the receiving assembly comprising a flat plate receiver, the flat plate receiver being provided with aluminum foil, the control device comprising a syringe pump, a syringe being provided on the top of the syringe pump, the syringe being connected to the syringe pump through an adjustment mechanism, and the syringe being connected to the Luer connector through a polytetrafluoroethylene tube.

[0006] In a preferred embodiment, it also includes a common base located at the bottom of the spinning assembly, receiving assembly, control device and high-voltage DC power supply, and a slide groove is provided on the top of the base. The base is provided to concentrate the spinning assembly, receiving assembly, control device and high-voltage DC power supply together for easy carrying and use.

[0007] In a preferred embodiment, the bottom end of the flat plate receiver and the bottom end of the clamp are both connected to a movable bracket, and the movable bracket includes a slider, which is slidably arranged in a slide groove, and the top end of the slider is rotatably connected to a vertical rod, and the top ends of the two vertical rods are respectively rotatably connected to the stainless steel flat needle head and the bottom of the flat plate receiver. The movable bracket can be used to adjust the inclination angle of the stainless steel flat needle head and the flat plate receiver, thereby adjusting the distance between the stainless steel flat needle head and the flat plate receiver.

[0008] In a preferred embodiment, a frame plate is provided on the outside of the flat panel receiver, and spring latches are fixedly passed through the outer walls on both sides of the frame plate. Slots adapted to the spring latches are provided on both sides of the flat panel receiver, and the spring latches are plugged into the slots. When the aluminum foil needs to be replaced, the frame plate is removed and a new aluminum foil is placed. Then, the frame plate only needs to be put on the flat panel receiver and pressed down to automatically fix the aluminum foil.

[0009] In a preferred embodiment, the adjustment mechanism includes an electric slide fixed to the top of the injection pump, and a clamp 2 for fixing the syringe is fixed on the top of the electric slide.

[0010] In a preferred embodiment, a grounding wire is fixedly connected to the bottom end of the flat panel receiver to reduce the damage caused to the staff by accidentally touching the flat panel receiver, thereby improving the safety of the entire device.

[0011] The technical effects and advantages of the utility model are as follows: the utility model is an easy-to-operate electrospinning device formed by combining a spinning assembly, a receiving assembly, a control device and a high-voltage DC power supply, and the flow rate and time of the syringe can be automatically adjusted through the adjustment mechanism, which significantly simplifies the operation process, improves the usability and production efficiency of the equipment, and lowers the technical threshold. It is suitable for laboratory application scenarios and has significant technical advantages and practical application value; the angle and position of the stainless steel flat-mouth needle and the flat receiver can be adjusted through the movable bracket, which is more flexible to use. By setting a detachable frame plate, the staff can be assisted to quickly replace the aluminum foil on the flat receiver, thereby improving the electrospinning efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. 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 any creative work.

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

[0014] Figure 2 This is a schematic diagram of the control device and adjustment mechanism structure of the utility model;

[0015] Figure 3 This is a schematic structural diagram of the spinneret assembly of the present invention;

[0016] Figure 4 This is a schematic structural diagram of the receiving component of the present utility model;

[0017] Figure 5 This is a structural diagram of the frame plate and flat receiver of the utility model.

[0018] The accompanying drawings are marked as follows: 1. Spinning assembly; 2. Receiving assembly; 3. Control device; 4. High-voltage DC power supply; 5. Clamp 1; 6. Movable bracket; 7. Adjustment mechanism; 8. Base; 9. Slide; 10. Frame; 11. Spring latch; 12. Slot; 13. Ground wire;

[0019] Stainless steel flat needle; 102, Luer connector;

[0020] Flat receiver; 202, aluminum foil;

[0021] Syringe pump; 302, syringe; 303, polytetrafluoroethylene tube;

[0022] Slider; 602, vertical rod;

[0023] 701. Electric slide; 702. Fixture 2. DETAILED DESCRIPTION

[0024] 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 embodiments described 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 making creative efforts are within the scope of protection of the present invention.

[0025] Refer to the instruction manual Figure 1-5 The utility model provides an electrostatic spinning device, including a spinning assembly 1, a receiving assembly 2, a control device 3 and a high-voltage DC power supply 4.

[0026] The spinneret assembly 1 includes a stainless steel flat needle 101, which is connected to a Luer connector 102 and is provided with a clamp 5.

[0027] The receiving component 2 includes a flat receiver 201 , on which an aluminum foil 202 is provided.

[0028] The control device 3 includes a syringe pump 301 , a syringe 302 is provided on the top of the syringe pump 301 , and the syringe 302 is connected to the Luer connector 102 via a polytetrafluoroethylene tube 303 .

[0029] In order to facilitate the electrospinning work, a common base 8 is set at the bottom of the spinning assembly 1, the receiving assembly 2, the control device 3 and the high-voltage DC power supply 4. A slide groove 9 is opened on the top of the base 8. The spinning assembly 1, the receiving assembly 2, the control device 3 and the high-voltage DC power supply 4 are supported by the base 8, making it easy to carry the device for use.

[0030] To adjust the flow rate and time of the spinning solution ejected by the syringe 302, the syringe 302 is connected to the syringe pump 301 via an adjustment mechanism 7. Specifically, the adjustment mechanism 7 includes an electric slide 701 fixed to the top of the syringe pump 301. A second clamp 702 for fixing the syringe 302 is fixed on the top of the electric slide 701. The electric slide 701 automatically squeezes the syringe 302 to better control the extrusion speed and time of the spinning solution. The electric slide 701 can be controlled by a stepper motor or a single-chip microcomputer to control the extrusion speed.

[0031] In order to improve the safety of electrospinning, a grounding wire 13 is fixedly connected to the bottom end of the flat receiver 201 to reduce the damage caused by workers accidentally touching the flat receiver 201.

[0032] When in use, first put an appropriate amount of spinning liquid into the syringe 302, then insert the end of the syringe 302 between the pressure block and the clamping block 2, and make the slide seat of the electric slide 701 contact the piston handle of the syringe 302, and then turn on the high-voltage DC power supply 4. The high-voltage DC power supply 4 provides power to the stainless steel flat-mouth needle 101 and the flat-plate receiver 201. After adjusting the position of the flat-plate receiver 201, the electric slide 701 can be used to push the piston handle of the syringe 302 to move and extrude the spinning liquid. The spinning liquid flows into the stainless steel flat-mouth needle 101 through the polytetrafluoroethylene tube 303, and is then sprayed by the stainless steel flat-mouth needle 101 onto the aluminum foil 202 of the flat-plate receiver 201, thereby completing the electrostatic spinning work. This embodiment utilizes a spinning assembly 1, a receiving assembly 2, a control device 3 and a high-voltage DC power supply 4 to form an easy-to-operate electrospinning device, and adjusts the flow rate and time of the syringe 302 through an electric slide 701 to control the spinning process, which significantly simplifies the operating process, improves the usability and production efficiency of the equipment, and lowers the technical threshold. It is suitable for laboratory application scenarios and has significant technical advantages and practical application value.

[0033] Refer to the instruction manual Figure 1-5A movable bracket 6 is connected to the bottom of the flat receiver 201 and the bottom of the clamp 5. The movable bracket 6 includes a slider 601. The slider 601 is slidably arranged in the slide groove 9. The top of the slider 601 is rotatably connected to a vertical rod 602. The tops of the two vertical rods 602 are rotatably connected to the clamp 5 and the bottom of the flat receiver 201 respectively. The movable bracket 6 is used to support the stainless steel flat needle 101 and the flat receiver 201, so that the angles of the two can be flexibly adjusted.

[0034] In order to facilitate the quick replacement of the aluminum foil 202, a frame plate 10 is provided on the outside of the flat receiver 201. Spring latches 11 are fixedly passed through the outer walls of both sides of the frame plate 10. Slots 12 that are compatible with the spring latches 11 are opened on both sides of the flat receiver 201. The spring latches 11 are plugged into the slots 12. When removing the frame plate 10 to place a new aluminum foil 202, you only need to put the frame plate 10 on the flat receiver 201 and press down to automatically fix the aluminum foil 202.

[0035] By arranging the frame plate 10 on the flat receiver 201, when replacing the aluminum foil 202, it is only necessary to disassemble the spring latch 11 between the frame plate 10 and the flat receiver 201, and then remove the frame plate 10 to take out the aluminum foil 202. When re-placing the aluminum foil 202, first spread the aluminum foil 202 on the flat receiver 201, and then press down the frame plate 10 to automatically fix the aluminum foil 202. The structure is simple, which simplifies the operation steps of replacing the aluminum foil 202. In addition, a movable bracket 6 is set at the bottom of the clamp 5 and the bottom of the flat receiver 201. The movable bracket 6 consists of a slider 601, a vertical rod 602, a connecting piece 603, and a rotating rod 604. The bottom of the clamp 5 and the flat receiver 201 are rotatably connected through a connecting block 605, so that the inclination angle of the bottom of the clamp 5 and the flat receiver 201 can be adjusted. At the same time, rotating the vertical rod 602 can also make the bottom of the clamp 5 and the flat receiver 201 rotate 360 ​​degrees, which is more flexible to use.

[0036] Each embodiment in this specification is described in a related manner. The same or similar parts between the embodiments can be referred to each other. Each embodiment focuses on the differences from other embodiments.

[0037] The above description is only a preferred embodiment of the present invention and is not intended to limit the scope of protection of the present invention. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention are included in the scope of protection of the present invention.

Claims

1. An electrospinning device comprising a spinneret assembly (1), a control device (3) and a high-voltage DC power supply (4); characterized in that: The spinneret assembly (1) comprises a stainless steel flat needle (101), the stainless steel flat needle (101) is connected to a Luer connector (102), and the stainless steel flat needle (101) is provided with a clamp 1 (5); It also includes a receiving component (2), the receiving component (2) including a flat receiver (201), and an aluminum foil (202) is provided on the flat receiver (201); The control device (3) comprises a syringe pump (301), a syringe (302) is provided on the top of the syringe pump (301), the syringe (302) is connected to the syringe pump (301) via an adjustment mechanism (7), and the syringe (302) is connected to a Luer connector (102) via a polytetrafluoroethylene tube (303).

2. An electrospinning device according to claim 1, characterized in that: It also includes a common base (8) arranged at the bottom of the spinning assembly (1), the receiving assembly (2), the control device (3) and the high-voltage DC power supply (4), and a slide groove (9) is provided on the top of the base (8).

3. An electrospinning device according to claim 2, characterized in that: The bottom end of the flat receiver (201) and the bottom end of the clamp (5) are both connected to a movable bracket (6), and the movable bracket (6) includes a slider (601), and the slider (601) is slidably arranged in the slide groove (9). The top end of the slider (601) is rotatably connected to a vertical rod (602), and the top ends of the two vertical rods (602) are rotatably connected to the stainless steel flat needle (101) and the bottom of the flat receiver (201) respectively.

4. The electrospinning device according to claim 1, wherein: A frame plate (10) is sleeved on the outside of the flat panel receiver (201), and spring latches (11) are fixedly passed through the outer walls of both sides of the frame plate (10). Slots (12) adapted to the spring latches (11) are provided on both sides of the flat panel receiver (201), and the spring latches (11) are plugged into the slots (12).

5. The electrospinning device according to claim 1, characterized in that: The regulating mechanism (7) comprises an electric slide (701) fixed on the top of the injection pump (301), and a second clamp (702) for fixing the syringe (302) is fixed on the top of the electric slide (701).

6. The electrospinning device according to claim 1, characterized in that: The bottom end of the flat panel receiver (201) is fixedly connected to a grounding wire (13).

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