An electrospinning collection device

Abstract

This invention discloses an electrospinning collecting device, comprising an annular plate with several through holes, each hole having a nozzle connected to a liquid supply device located above the annular plate and connected to a liquid supply pump and a high-voltage power supply for energizing the spinning liquid. An air supply device is located above the liquid supply device. A receiving platform is located below the annular plate, with a moving device at its bottom and a diffuser. This invention utilizes the air supply device to concentrate the fiber ejection; a distribution valve distributes the spinning liquid to various supply pipes, allowing multiple nozzles to simultaneously eject fibers, thus improving spinning efficiency; and an air pump disperses the airflow to prevent the receiving platform from being impacted by the airflow, which could cause fiber disorder. This invention can improve the spinning density and realize the industrialization of electrospinning.

Description

Technical Field

[0001] This invention relates to the field of electrospinning equipment, and more particularly to an electrospinning collection device. Background Technology

[0002] Electrospinning is a new technology that can produce filaments with diameters down to the nanometer scale, with the smallest diameter reaching 1 nanometer. Currently, most electrospinning production uses a single nozzle for each collector, resulting in low output and long processing times, hindering industrial-scale production. Furthermore, during the spinning process, adjusting the nozzle's position and orientation is crucial for accurate fiber reception, a cumbersome process requiring repeated adjustments. If the nozzle is not securely fixed and falls, the high-voltage power supply can damage the surrounding fiber. Therefore, designing an electrospinning collection device that addresses these issues is a pressing problem. Summary of the Invention

[0003] To address the aforementioned difficulties, the present invention provides an electrostatic spinning collection device capable of solving the above problems.

[0004] To achieve the above objectives, the present invention provides the following technical solution:

[0005] An electrospinning collecting device includes a horizontally arranged annular plate with several through holes on its sidewalls. Each through hole is equipped with a nozzle, which are staggered on the annular plate. Each nozzle is connected to a liquid supply device located above the annular plate and connected to a liquid supply pump and a high-voltage power supply for energizing the spinning liquid. Above the liquid supply device is an air supply device for providing airflow, which is located on the axis of the annular plate and perpendicular to it. Below the annular plate is a receiving platform for creating an electric field between the liquid supply device and the receiving platform. At the bottom of the receiving platform is a moving device with a diffuser for dispersing the flow.

[0006] Preferably, the liquid supply device consists of a plurality of liquid supply pipes, the nozzle is connected to the liquid supply pipes, the plurality of liquid supply pipes form a ring and are arranged above the ring plate, and each liquid supply pipe is connected to the liquid supply pump through a distribution valve.

[0007] Preferably, all of the nozzles are oriented towards the axial direction of the annular plate.

[0008] Preferably, the liquid supply pump is connected to a liquid storage tank.

[0009] Preferably, each of the liquid supply pipes corresponds to a set of nozzles, the number of nozzles in each set is the same, and several sets of nozzles are evenly arranged on the annular plate.

[0010] Preferably, the moving device is a conveyor belt that drives the receiving station to move, and the conveyor belt is mounted on a support.

[0011] Preferably, the bracket is provided with a plurality of diffusers, which are located around the receiving station and are connected to an air pump.

[0012] The beneficial effects of this invention are as follows: By activating the air supply device to deliver air to the receiving platform, the extruded fibers are concentrated on the receiving platform; the spinning liquid is distributed to each supply pipe through a distribution valve, and the supply pipes are connected to a high-voltage power supply, allowing multiple nozzles to simultaneously spin fibers, achieving a rapid spinning effect; an air pump is used to evacuate air, changing the airflow direction around the receiving platform and dispersing the airflow to prevent the receiving platform from being impacted by the airflow, which could cause the fibers to become disordered; after the receiving platform collects the fibers, a moving device can be used to transport them to the next process. This invention can improve the spinning density, increase the spinning production efficiency, and realize the industrialization of electrospinning. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the structure of the present invention;

[0014] Figure 2 This is a top view of the liquid supply pipe in this invention;

[0015] The components include: annular plate 10, through hole 101, liquid supply device 12, liquid supply pipe 121, nozzle 122, distribution valve 123, liquid storage tank 124, liquid supply pump 14, receiving platform 18, diffuser 20, moving device 22, air supply device 24, and air pump 26. Detailed Implementation

[0016] The technical solution of this patent will be further described in detail below with reference to specific implementation method 2.

[0017] In the description of this invention, it should be noted that the terms "upper", "lower", "both sides", "relative", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limiting this invention.

[0018] like Figures 1 to 2As shown, the present invention provides an electrostatic spinning collection device, which includes a horizontally arranged annular plate 10. A plurality of through holes 101 are formed on the circumferential sidewall of the annular plate 10. Each through hole 101 is provided with a nozzle 122, which are staggered on the annular plate 10 and all facing the axial direction of the annular plate 10. A liquid supply device 12 is connected to the nozzles and is positioned above the annular plate 10. The liquid supply device 12 is connected to a liquid supply pump 14 and a high-voltage power supply (not shown) for energizing the spinning liquid. In use, the liquid supply device is connected to the high-voltage power supply (not shown), and the liquid supply pump fills the liquid supply device 12 with spinning liquid, which is then sprayed out from the nozzles 122. A receiving platform 18 is provided below the annular plate 10, and an electric field is formed between the liquid supply device 12 and the receiving platform 18, enabling the receiving platform 18 to receive the fibers sprayed from the nozzles 122. During electrospinning, the spinning liquid is in an electric field. The droplets are sprayed at the nozzle 122 and stretched, forming nanofibers at the receiving stage 18.

[0019] The liquid supply device 12 consists of several liquid supply pipes 121, with nozzles 122 connected to the liquid supply pipes 121. The several liquid supply pipes 121 form a ring and are arranged above the annular plate 10. Each liquid supply pipe 121 is connected to a liquid supply pump 14 through a distribution valve 123, and the liquid supply pump 14 is connected to a liquid storage tank 124. Furthermore, each liquid supply pipe 121 corresponds to a set of nozzles 122, and the number of nozzles 122 in each set is the same, with several sets of nozzles 122 evenly arranged on the annular plate 10. By setting up several liquid supply pipes 121 and several nozzles 122, mass production of electrospinning can be achieved. In use, the liquid supply pump 14 is used to pass the spinning liquid in the storage tank 124 into the distribution valve 123, and the spinning liquid is distributed to each liquid supply pipe 121 through the distribution valve 123. Then, the spinning liquid in the liquid supply pipe 121 is sprayed out through the nozzles 122. This can achieve the same liquid supply pressure in each liquid supply pipe 121, and the simultaneous spinning of multiple nozzles 122 can achieve the effect of rapid spinning, making the fiber filaments denser and improving work efficiency.

[0020] Furthermore, an air supply device 24 for providing airflow is provided above the liquid supply device 12. The air supply device 24 is positioned on the axis of the annular plate 10, and the air outlet of the air supply device 24 is aligned with the center of the annular plate 10. By utilizing the vertical airflow of the air supply device 24, the fibers ejected from the nozzle 122 can be aligned with the axis of the annular plate 101, and the fibers can also be concentrated and collected on the receiving platform 18.

[0021] Furthermore, a moving device 22 for moving the receiving platform 18 is provided at the bottom of the receiving platform 18. After collecting the fiber filaments, the receiving platform 18 can be moved to the next position via the moving device. The moving device 22 is a conveyor belt 221 that drives the receiving platform 18 to move. The conveyor belt 221 is mounted on a support 222, and the height of the support 222 is adjustable. By adjusting the height of the support 222, the distance between the receiving platform 18 and the nozzle 122 is changed, and the optimal height of the filaments is adjusted. A diffuser 20 for dispersing the airflow is provided on the moving device 222. Several diffusers 20 are provided on the support 222, and the diffusers 20 are located around the receiving platform 18. The diffusers 18 are connected to a vacuum pump 26. By drawing air from the area around the receiving platform 18 through the negative pressure of the diffusers 201, the airflow delivered to the receiving platform 18 by the air supply device 24 can be diverted to prevent the airflow from impacting the receiving platform 18 and causing the fiber filaments sprayed onto the receiving platform 18 to become disordered due to the influence of the wind.

[0022] In use, the air supply device 24 is turned on to supply air to the receiving platform 18. The spinning liquid in the storage tank 124 is extracted by the liquid supply pump 14 and distributed to each supply pipe 121 via the distribution valve 123. The supply pipes 121 are connected to a high-voltage power supply, causing the spinning liquid to be sprayed from the nozzle 122. The air extraction pump 26 extracts air from the area surrounding the receiving platform 18, altering the airflow and dispersing it to prevent the receiving platform 18 from being impacted by the airflow and causing fiber filament disorder. After collecting the fibers, the receiving platform 18 can be transported to the next process using the moving device 28. This invention can improve the spinning density, increase spinning production efficiency, and realize the industrialization of electrospinning.

[0023] It will be apparent to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the invention can be implemented in other specific forms without departing from its spirit or essential characteristics. Therefore, the embodiments should be considered in all respects as exemplary and non-limiting, and the scope of the invention is defined by the appended claims rather than the foregoing description. Thus, all variations falling within the meaning and scope of equivalents of the claims are intended to be included within the present invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

[0024] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. An electrospinning collection device, characterized by: It includes a horizontally arranged annular plate, the side wall of the annular plate is provided with a plurality of through holes, each of the through holes is provided with a nozzle, the nozzles are staggered arranged on the annular plate; each of the nozzles is connected with a liquid supply device, the liquid supply device is arranged above the annular plate, and the liquid supply device is connected with a liquid supply pump and a high-voltage power supply for electrifying the spinning liquid; the upper side of the liquid supply device is provided with a wind supply device for providing wind, the wind supply device is arranged on the axis of the annular plate and is perpendicular to the annular plate; the lower side of the annular plate is provided with a receiving table, so as to form an electric field between the liquid supply device and the receiving table; the bottom of the receiving table is provided with a moving device, and the moving device is provided with a flow distribution port for flow distribution; the liquid supply device is composed of a plurality of liquid supply pipes, the nozzles are communicated with the liquid supply pipes, a plurality of the liquid supply pipes are arranged in a ring shape and above the annular plate, each of the liquid supply pipes is connected with the liquid supply pump through a distribution valve; a plurality of the nozzles are directed to the axis direction of the annular plate; each of the liquid supply pipes corresponds to a group of nozzles, the number of nozzles in each group is same, and a plurality of groups of nozzles are uniformly arranged on the annular plate; the moving device is a conveying belt for driving the receiving table to move, and the conveying belt is installed on a support; the support is provided with a plurality of flow distribution ports, the flow distribution ports are arranged at positions corresponding to the periphery of the receiving table, and the flow distribution ports are connected with an air suction pump; the liquid supply pump is connected with a liquid storage tank.

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