A transmission type nanofiber generating device

Abstract

The application relates to the technical field of electrostatic spinning devices, and particularly discloses a transmission type nanofiber generating device; in the application, a discharge port is arranged below a liquid storage component, viscous solution can flow towards the discharge port by itself, and is attached to a first electrode, so that the liquid level of the viscous solution in the liquid storage component does not need to be monitored in real time; in the application, the viscous solution is supplied to the first electrode from top to bottom, so that the viscous solution can be prevented from being retained in the liquid storage component, the stale viscous solution can be timely output, spinning work can be completed, the viscous solution can be prevented from being retained in the liquid storage component for a long time, and spinning quality is guaranteed; in the application, along a movement path of the first electrode, a receiving component is arranged below the first electrode, so as to receive the unused viscous solution falling from the first electrode, after continuous work for a period of time, the receiving component can be directly replaced / cleaned, the whole device does not need to be stopped, and spinning efficiency is guaranteed.

Description

Technical Field

[0001] This invention relates to the technical field of electrospinning devices, and more particularly to a transmission-type nanofiber generating device. Background Technology

[0002] Electrospinning is a process that uses electrostatic force to stretch and refine a viscous solution in an electric field, ultimately obtaining ultrafine fibers and completing the spinning process.

[0003] For example, Chinese patent CN201310596562.2 provides a linear jet nozzleless electrospinning device, including a feeding mechanism, a raw material storage chamber, a spinning roller, a roller heating device, a spinning guide plate, a motor, an electrode plate, a high-voltage electrostatic generator, an exhaust box, an exhaust fan, a web laying belt, and a hot rolling receiving device. The feeding mechanism is connected to the raw material storage chamber, which is located directly below the spinning roller. The spinning roller is fixed on a spinning roller support and rotated by the motor. The lower half of the spinning roller is immersed in the raw material. The roller heating device is located at the center of the spinning roller. The lower edge of the spinning guide plate is close to the upper surface of the roller and corresponds to the axis of the spinning roller. The web laying belt is located directly above the spinning guide plate. The electrode plate is connected to the high-voltage electrostatic generator, fixed between the web laying belt and the exhaust box, and close to the web laying belt. The exhaust box is connected to the exhaust fan and is close to the upper surface of the electrode plate. The guide vane is connected to the connector fixed on the spinning roller support by threads at both ends, which can realize angle change and tension adjustment. The spinning guide vane is in close contact with the roller surface of the spinning roller to prevent unused liquid from flowing back into the raw liquid pool and affecting the raw liquid concentration, and can also realize the self-cleaning of the roller.

[0004] On the one hand, in the above technical solution, the spinning roller is located above the raw material storage chamber and needs to continuously feed the raw material into the raw material storage chamber through the feeding mechanism to ensure that the lower half of the spinning roller can be immersed in the raw material; however, in this feeding method, the old raw material is easy to get stuck between the bottom of the spinning roller and the raw material storage chamber, and the old raw material cannot be output and spun in time. Long-term retention may also reduce the viscosity of the old raw material and affect the spinning quality.

[0005] On the other hand, in the above technical solution, the spinning guide plate is in close contact with the surface of the spinning roller to prevent unused liquid from flowing back into the raw liquid pool and affecting the concentration of the raw liquid. However, the spinning guide plate is located above the spinning roller, and the amount of unused liquid that can adhere to the spinning guide plate is limited. After the spinning operation has been running for a period of time, it is still necessary to stop the machine to replace / clean the spinning guide plate, which is not conducive to the continuous operation of electrostatic spinning and affects the spinning efficiency. Summary of the Invention

[0006] To address the aforementioned problems in the prior art, the present invention provides a transmission-type nanofiber generating device, the purpose of which is to ensure spinning quality and improve spinning efficiency.

[0007] To achieve the above-mentioned objectives, the technical solution adopted by the present invention is as follows:

[0008] A drive-type nanofiber generating device is provided, comprising: a liquid storage component for storing a viscous solution; a first electrode and a second electrode disposed at a fixed distance apart; a power source for providing electrical energy of different polarities to the first electrode and the second electrode, thereby forming an electric field between the first electrode and the second electrode; a conveying component for driving the first electrode to perform cyclic reciprocating motion along a fixed path; and a discharge port located below the liquid storage component and on the movement path of the first electrode. The conveying component, by driving the first electrode to perform cyclic reciprocating motion, can drive the first electrode into the liquid storage component to adhere to the viscous solution, and can also drive the first electrode into the electric field for spinning operations; and a receiving component disposed below the first electrode along the movement path of the first electrode.

[0009] Furthermore, the first electrode is a closed metal ring.

[0010] Furthermore, the conveying assembly includes: at least two drive wheels disposed within the closed first electrode to tension the first electrode; and a drive motor for driving the drive wheels to rotate, thereby causing the first electrode to reciprocate along a fixed path.

[0011] Furthermore, the device is provided with at least two liquid storage components, and two drive wheels are rotatably disposed on one side of the two discharge ports; the drive wheels rotate, which can drive the drive wheels to periodically enter / exit the liquid storage components.

[0012] Furthermore, the drive wheel is installed horizontally.

[0013] Furthermore, the second electrode is a cylindrical metal part, positioned above the first electrode along the movement path of the first electrode, and can rotate around its own central axis to entwine the nanofibers.

[0014] Furthermore, the first electrode is a metal wire / metal sheet.

[0015] Furthermore, a number of serrations extending toward the second electrode are provided on the first electrode.

[0016] The beneficial effects of this invention are as follows: In this invention, the outlet is located below the liquid storage component. Under the action of gravity, the viscous solution can flow towards the outlet on its own and adhere to the first electrode, eliminating the need to monitor the liquid level of the viscous solution in the liquid storage component in real time. Furthermore, in this invention, the viscous solution is supplied to the first electrode from top to bottom, which can prevent the viscous solution from stagnating in the liquid storage component, ensuring that old viscous solution can be output in a timely manner to complete the spinning process, and preventing the viscous solution from stagnating in the liquid storage component for a long time, thus ensuring the spinning quality.

[0017] In this invention, along the movement path of the first electrode, the receiving component is located below the first electrode to receive the unused viscous solution that falls from the first electrode. After working continuously for a period of time, the receiving component can be directly replaced / cleaned without shutting down the entire device, and the spinning operation can continue, ensuring spinning efficiency. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the overall structure of the generating device provided in Example 1.

[0019] Figure 2 This is a schematic diagram of the overall structure of the generating device provided in Example 3.

[0020] The components include: 1. Liquid storage component; 11. First electrode; 12. Second electrode; 13. Power supply; 2. Material receiving component; 3. Transmission wheel. Detailed Implementation

[0021] To better understand the above technical solutions, the following will provide a detailed explanation of the technical solutions in conjunction with the accompanying drawings and specific implementation methods.

[0022] Example 1

[0023] Reference Figure 1 As shown, this embodiment of the invention provides a transmission-type nanofiber generating device, comprising: a liquid storage component 1 for storing a viscous solution; a first electrode 11 and a second electrode 12, disposed at a fixed distance apart; a power supply 13 for providing electrical energy of different polarities to the first electrode 11 and the second electrode 12, thereby forming an electric field between the first electrode 11 and the second electrode 12; a conveying component for driving the first electrode 11 to perform cyclic reciprocating motion along a fixed path; and a discharge port located below the liquid storage component 1 and on the movement path of the first electrode 11. The conveying component drives the first electrode 11 to perform cyclic reciprocating motion, enabling the first electrode 11 to enter the liquid storage component 1 to adhere to the viscous solution, and also enabling the first electrode 11 to enter the electric field for spinning operations; and a receiving component 2, disposed below the first electrode 11 along the movement path of the first electrode 11.

[0024] In this invention, the outlet is located below the liquid storage component 1. Under the action of gravity, the viscous solution can flow towards the outlet and adhere to the first electrode 11 without the need to monitor the liquid level of the viscous solution in the liquid storage component 1 in real time. Furthermore, in this invention, the viscous solution is supplied to the first electrode 11 from top to bottom, which can prevent the viscous solution from stagnating in the liquid storage component 1, ensure that the old viscous solution can be output in time to complete the spinning process, and prevent the viscous solution from stagnating in the liquid storage component 1 for a long time, thus ensuring the spinning quality.

[0025] In this invention, the first electrode 11 is movably placed inside the storage component. The conveying component drives the first electrode 11 to perform cyclic reciprocating motion, which can drive the first electrode 11 into the liquid storage component 1 to adhere to the viscous solution, and can also drive the first electrode 11 into the electric field to perform spinning operations. The first electrode 11 and the liquid storage component 1 are set separately, and the two steps of the first electrode 11 adhering to the viscous solution and entering the electric field for spinning can be performed separately without interference. It can also prevent the first electrode 11 from being immersed in the viscous solution for a long time, reduce the corrosion of the electrode by the viscous solution, and extend the service life of the first electrode 11.

[0026] In this invention, along the movement path of the first electrode 11, the receiving component 2 is disposed below the first electrode 11 to receive the unused viscous solution that falls from the first electrode 11. After working continuously for a period of time, the receiving component 2 can be directly replaced / cleaned without stopping the entire device, and the spinning operation can continue to ensure spinning efficiency.

[0027] Preferably, the first electrode 11 is a closed metal ring made of conductive material. By designing the first electrode 11 as a closed metal ring, the first electrode 11 can be driven to reciprocate along a fixed path by the conveying component driving the metal ring along the ring path.

[0028] Specifically, the conveying assembly includes: at least two drive wheels 3, which are disposed inside the closed first electrode 11 to tension the first electrode 11; and a drive motor for driving the drive wheels 3 to rotate, thereby driving the first electrode 11 to reciprocate along a fixed path.

[0029] By driving one of the transmission wheels 3 to rotate via a drive motor, the first electrode 11 can be driven to reciprocate along a circular path to complete the continuous spinning process.

[0030] It is worth mentioning that in this embodiment, the two transmission wheels 3 tension the first electrode 11 and divide the first electrode 11 into a straight segment distributed along a straight line and an arc segment distributed along the outer contour of the transmission wheel 3 along the distribution path of the first electrode 11. The second electrode 12 is disposed above the straight segment, and an electric field is formed between the straight segment of the first electrode 11 and the second electrode 12 to perform the spinning operation.

[0031] Preferably, the device is provided with at least two liquid storage components 1, and two drive wheels 3 are rotatably disposed on one side of the two discharge ports respectively; the drive wheels 3 rotate, which can drive the drive wheels 3 to periodically enter / exit the liquid storage components 1.

[0032] In this embodiment, the arc-shaped segment of the first electrode 11 is located inside the liquid storage component 1, and the outlet is located at the junction of the straight segment and the arc-shaped segment. During the process of the first electrode 11 passing through the outlet into the liquid storage component 1, the liquid storage component 1 can scrape off the viscous solution remaining on the first electrode 11, realizing the self-cleaning of the first electrode 11 and preventing unused viscous solution from entering the liquid storage component 1 again, affecting the concentration of viscous solution in the liquid storage component 1, and ensuring the spinning quality. After the first electrode 11 exits the liquid storage component 1 through the outlet, it can enter the electric field with the re-attached viscous solution to perform spinning operations. This cycle is repeated to realize the continuous operation of spinning.

[0033] In this embodiment, two liquid storage components 1 are provided. The first electrode 11 travels along a fixed path for one cycle, passing through both liquid storage components 1. In one stroke, two liquid addition operations are completed, which can effectively ensure that the viscous solution on the first electrode 11 is sufficient. Furthermore, two spinning operations can be completed. During the two spinning operations, the content of viscous solution on the first electrode 11 is balanced, ensuring spinning quality and effectively improving spinning efficiency.

[0034] Specifically, the transmission wheel 3 is installed horizontally, and the drive motor is located below the transmission wheel 3, below the arc segment. The transmission wheel 3 and the drive motor are connected by a mounting shaft. It is worth mentioning that both the transmission wheel 3 and the mounting shaft are made of non-conductive material (which can be plastic) to isolate the electric field and prevent the electric field formed between the first electrode 11 and the second electrode 12 from damaging the drive motor and preventing the failure of the entire device.

[0035] Specifically, the second electrode 12 is a cylindrical metal part, which is positioned above the first electrode 11 along the movement path of the first electrode 11 and can rotate around its own central axis to wind the nanofibers.

[0036] In this embodiment, the second electrode 12 is arranged parallel above the straight segment of the first electrode 11. The first electrode 11 is coated with a viscous solution and is in an electric field. Under the action of the electric field, nanofibers are generated on the first electrode 11 and move toward the second electrode 12 until they come into contact with the second electrode 12. At the same time, the first electrode 11 moves along the axial direction of the second electrode 12, and the second electrode 12 rotates around its own central axis. The nanofibers generated on the first electrode 11 are spirally wound around the second electrode 12 along the axial direction of the second electrode 12, which can uniformly wind the nanofibers around the second electrode 12 and increase the storage capacity of the second electrode 12 for nanofibers.

[0037] It is worth mentioning that the second electrode 12 can also be driven to rotate by a drive motor; either a servo motor or a stepper motor can be used as the drive motor.

[0038] Furthermore, the first electrode 11 is a metal wire / sheet, which can be made of stainless steel and is capable of carrying an electric charge.

[0039] Example 2

[0040] In this embodiment, the diameter of the transmission wheel 3 is 20mm, the length of the first electrode 11 is 100mm, the rotation speed of the transmission wheel 3 is 30r / min, and the second electrode 12 is positioned 16cm above the first electrode 11. The spinning operation can be continuously performed by driving the transmission wheel 3 and the second electrode 12 to rotate through the drive motor.

[0041] Example 3

[0042] Reference Figure 2 As shown, in this embodiment, the diameter of the transmission wheel 3 is 40mm, the length of the first electrode 11 is 200mm, the rotation speed of the transmission wheel 3 is 40r / min, and the second electrode 12 is set 20cm above the first electrode 11. The spinning operation can be continuously performed by driving the transmission wheel 3 and the second electrode 12 to rotate through the drive motor.

[0043] The first electrode 11 has several serrations extending toward the second electrode 12. By setting the serrations, under the action of the electric field, the viscous solution extends along the serrations toward the second electrode 12, guiding the droplets at the top of the serrations to change from a spherical shape to a conical shape (i.e., "Taylor cone"), and extending from the tip of the cone to obtain nanofibers.

[0044] Those skilled in the art will understand that although preferred embodiments of the invention have been described, those skilled in the art, upon learning the basic inventive concept, can make other changes and modifications to these embodiments. Therefore, the appended claims are intended to be interpreted as including both the preferred embodiments and all changes and modifications falling within the scope of the invention. Clearly, those skilled in the art can make various alterations and modifications to the invention without departing from its spirit and scope. Thus, if these modifications and modifications of the invention fall within the scope of the machine equivalents of the claims, the invention also intends to include these modifications and modifications.

Claims

1. A transmission-type nanofiber generating device, characterized in that, include: Liquid storage component (1) for storing viscous solutions; The first electrode (11) and the second electrode (12) are set at a fixed distance apart; A power source (13) is used to provide electrical energy of different polarities to the first electrode (11) and the second electrode (12) to form an electric field between the first electrode (11) and the second electrode (12); The conveying component is used to drive the first electrode (11) to perform cyclic reciprocating motion along a fixed path; The discharge port is located below the liquid storage component (1) and is on the movement path of the first electrode (11); Among them, the conveying component drives the first electrode (11) to perform cyclic reciprocating motion, which can drive the first electrode (11) into the liquid storage component (1) to adhere to the viscous solution, and can also drive the first electrode (11) into the electric field to perform spinning operation; The receiving component (2) is disposed below the first electrode (11) along the movement path of the first electrode (11); The first electrode (11) is a closed metal ring; The conveying components include: At least two drive wheels (3) are set inside the closed first electrode (11) to tension the first electrode (11); A drive motor is used to drive the transmission wheel (3) to rotate, thereby driving the first electrode (11) to reciprocate along a fixed path. The device includes at least two liquid storage components (1), and two drive wheels (3) are rotatably disposed on one side of the two discharge ports. The drive wheels (3) rotate and can drive the drive wheels (3) to periodically enter / exit the liquid storage components (1). Furthermore, the transmission wheel (3) is installed horizontally, and the first electrode (11) is a metal wire / metal sheet.

2. The transmission-type nanofiber generator according to claim 1, characterized in that, The second electrode (12) is a cylindrical metal part, which is positioned above the first electrode (11) along the movement path of the first electrode (11) and can rotate around its own central axis to wrap the nanofiber.

3. The transmission-type nanofiber generator according to claim 1, characterized in that, A plurality of serrations extending toward the second electrode (12) are provided on the first electrode (11).

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