CN213708564U - Controllable rotary electrostatic spinning device - Google Patents
Controllable rotary electrostatic spinning device Download PDFInfo
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- CN213708564U CN213708564U CN202022740950.1U CN202022740950U CN213708564U CN 213708564 U CN213708564 U CN 213708564U CN 202022740950 U CN202022740950 U CN 202022740950U CN 213708564 U CN213708564 U CN 213708564U
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Abstract
The application relates to a controllable rotatory electrostatic spinning device includes: the liquid storage tank is used for placing spinning solution; the spinning ball body, at least some of which is soaked in the spinning solution, can rotate relative to the liquid storage tank; the driving mechanism drives the spinning ball body to rotate; the receiving mechanism is arranged on one side of the liquid storage tank; the power supply mechanism is electrically connected with the liquid storage tank to form an electrostatic field with the receiving mechanism; the receiving mechanism is arc-shaped, and the circle center of the arc-shaped receiving mechanism is coincided or basically coincided with the circle center of the spinning ball body, so that the spinning efficiency is ensured, and the orientation and the uniformity of the spun nano fibers can be improved.
Description
Technical Field
The utility model relates to a controllable rotatory electrostatic spinning device belongs to electrostatic spinning technical field.
Background
At present, the electrostatic spinning technology has the advantages of simple and convenient operation, wide application range, relatively high production efficiency and the like, and the spun nanofiber has the characteristics of fine fiber, large specific surface area, high porosity and the like, and becomes a hot point of research. However, the traditional electrostatic spinning equipment has low spinning efficiency and limits the batch production of the nano fibers, so that free liquid surface spinning is produced at the same time. The spinning principle is that the electrostatic force provided by a high-voltage electric field is utilized to overcome the surface tension of the polymer liquid surface, a Taylor cone is formed on the polymer liquid surface, jet flow is further formed, and the jet flow is attenuated into nano fibers under the action of an electric field force. However, although the conventional free liquid surface spinning can realize mass production of nanofibers, the method also has the defects of unstable jet flow, easy solidification of solution, uneven spinning, poor orientation, easy generation of resource waste and the like. And the uniformity and orientation of the fibers received by the traditional receiving device (such as metal mesh, aluminum foil and the like) are poor, so that the application of the electrostatic spinning nano-fibers in the fields of biomedicine, reinforced materials, conductive materials and the like is greatly limited.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a controllable rotatory electrostatic spinning device, it is when guaranteeing spinning efficiency, can improve the nanofiber's that spins orientation and homogeneity.
In order to achieve the above purpose, the utility model provides a following technical scheme: a controllable rotary electrospinning apparatus comprising:
the liquid storage tank is used for placing spinning solution;
a spinning sphere, at least a portion of which is immersed in the spinning solution, and which is rotatable relative to the reservoir;
the driving mechanism drives the spinning ball to rotate;
the receiving mechanism is arranged on one side of the liquid storage tank;
the power supply mechanism is electrically connected with the liquid storage tank to form an electrostatic field with the receiving mechanism;
the receiving mechanism is arc-shaped, and the circle center of the arc-shaped receiving mechanism is coincided with or basically coincided with the circle center of the spinning ball body.
Further, the arc-shaped receiving mechanism comprises a first conductive metal piece and a second conductive metal piece, and the first conductive metal piece and the second conductive metal piece are arranged in parallel.
Further, the material of the first conductive metal piece and the second conductive metal piece is any one of copper, iron, silver and gold.
Further, the volume of the spinning spheres disposed in the spinning solution is half or nearly half of the total volume of the spinning spheres.
Further, the spinning ball is made of conductive metal.
Further, the driving mechanism is a driving motor.
Further, the driving mechanism is a lead screw and a transmission mechanism connected with the lead screw and used for converting the linear motion of the lead screw into the rotary motion.
Further, the transmission mechanism is in gear transmission.
Further, the controllable rotary electrostatic spinning device further comprises a liquid supply mechanism for supplying liquid to the liquid storage tank, and the liquid supply mechanism is connected with the liquid storage tank through a liquid guide pipe.
Further, the material of the liquid storage tank is conductive metal.
The beneficial effects of the utility model reside in that: the spinning ball is arranged and driven by the driving mechanism to rotate in the spinning solution, so that the spinning solution on the surface of the spinning ball exposed in the air is continuously replaced and updated, the spinning solution is prevented from being solidified in the air, and the dispersibility of substances in the spinning solution and the uniformity of the solution are improved; and the receiving mechanism is arranged to be arc-shaped, the circle center of the arc-shaped receiving mechanism is coincided or basically coincided with the circle center of the spinning ball body, so that the distances from the surface of the spinning ball body to the arc-shaped receiving mechanism are equal, the jet flow can be drafted under the same condition, and the diameter distribution uniformity and the uniformity of the morphology structure of the nanofiber are improved.
The above description is only an overview of the technical solution of the present invention, and in order to make the technical means of the present invention clearer and can be implemented according to the content of the description, the following detailed description is made with reference to the preferred embodiments of the present invention and accompanying drawings.
Drawings
Fig. 1 is a schematic structural diagram of a controllable rotary electrospinning device according to the present application.
FIG. 2 is a schematic view of a portion of the structure of FIG. 1
Detailed Description
The following detailed description of the embodiments of the present invention is provided with reference to the accompanying drawings and examples. The following examples are intended to illustrate the invention, but are not intended to limit the scope of the invention.
Referring to fig. 1 and 2, a controllable rotary electrostatic spinning device according to a preferred embodiment of the present invention can effectively improve the orientation and uniformity of the spun nanofibers while ensuring the spinning efficiency, which is convenient and fast. Specifically, controllable rotatory electrostatic spinning device is including the liquid reserve tank 3 that is used for placing spinning solution, set up and be in spinning spheroid 1 in the liquid reserve tank 3, drive spinning spheroid 1 rotatory actuating mechanism 2, the setting is in receiving mechanism 6 of liquid reserve tank 3 one side, and with liquid reserve tank 3 electric connection in order to with receiving mechanism 6 forms electrostatic field's power supply mechanism 5, and it is worth noting that, when actuating mechanism 2 is connected with spinning spheroid 1, actuating mechanism 2 is located the outside of liquid reserve tank 3. In this embodiment, the power supply mechanism 5 is a high voltage power supply mechanism 5, and the receiving mechanism 6 is grounded 7, so as to form an electrostatic field with the liquid storage tank 3, so that the spinning solution is drawn into a jet under the action of the electrostatic field, and is finally received on the receiving mechanism 6. Correspondingly, the material of the liquid storage tank 3 is a conductive metal, which may be any one of copper, iron, silver and gold, or other conductive metals, and is not specifically limited herein, depending on the actual situation. Indeed, in other embodiments, the power supply mechanism 5 may also be electrically connected to the driving mechanism 2, and at this time, the materials of the driving mechanism 2 and the spinning ball 1 are both conductive metals, which are the same as above, and are not described herein again.
In order to ensure the order and uniformity of the finally formed nanofibers, in this embodiment, the receiving mechanism 6 is disposed above the liquid reservoir 3. Indeed, in other embodiments, the receiving mechanism 6 may be disposed in other directions of the liquid storage 3, such as left front, etc., in which case, a conductive metal ring is required to be added between the liquid storage 3 and the receiving mechanism 6 to guide the drawing direction of the nanofibers, which is not particularly limited herein. The receiving mechanism 6 is arc-shaped, and the circle center of the arc-shaped receiving mechanism 6 coincides with or substantially coincides with the circle center of the spinning sphere 1. The purpose of this is to: the distance from the exposed spherical surface of the spinning ball 1 to the receiving mechanism 6 is equal or almost equal, so that the jet is drawn under the same condition as much as possible, and the distribution uniformity and the morphological structure uniformity of the diameter of the nano fiber are improved. Meanwhile, the arc-shaped receiving mechanism 6 enlarges the receiving area, can collect more nano fibers and achieves the effect of reducing the waste of resources.
The arc-shaped receiving mechanism 6 comprises a first conductive metal piece and a second conductive metal piece, the first conductive metal piece and the second conductive metal piece are arranged in parallel, and the first conductive metal piece and the second conductive metal piece are made of any one of copper, iron, silver and gold. That is, parallel electrodes are formed between the arc-shaped first conductive metal part and the arc-shaped second conductive metal part, which can greatly improve the orientation and uniformity of the spun nanofibers.
At least part of the spinning sphere 1 is immersed in the spinning solution, and the spinning sphere 1 is rotatable relative to the reservoir 3. Wherein the volume of the spinning spheres 1 arranged in the spinning solution is half or nearly half of the total volume of the spinning spheres 1. The purpose of this is to: at this time, the effective spinning surface area of the spinning ball 1 exposed to the outside is maximized or close to maximized, thereby ensuring the spinning efficiency. That is, in this case, the nanofibers can be received on the receiving means 6 at most, and when the volume of the spinning ball 1 exposed to the outside is more than a half of the entire volume thereof, the area of the spinning ball 1 that can be contaminated with the spinning solution is also small, thereby lowering the spinning efficiency; moreover, even if the spinning sphere 1 is exposed to the outside, the spinning solution can be stained, the nanofibers at the position of the spinning sphere 1 close to the spinning liquid surface can fall onto the spinning liquid surface under the action of gravity, interference can be caused to the subsequent spinning process, and the spinning efficiency is low.
The driving mechanism 2 can drive the spinning ball 1 to rotate in the spinning solution, so that the spinning solution on the surface of the spinning ball 1 exposed in the air is continuously replaced and updated, the spinning solution is prevented from being solidified in the air, and meanwhile, the dispersibility of substances in the spinning solution and the uniformity of the solution are improved. In this embodiment, the driving mechanism 2 is a driving motor, which may be a stepping motor, and the working parameters of the stepping motor may be set, so as to ensure that the rotation speed of the spinning ball 1 is controllable. Indeed, in other embodiments, the driving mechanism 2 may also be a screw and a transmission mechanism connected to the screw and configured to convert the linear motion of the screw into a rotational motion, the transmission mechanism is a gear transmission, the structure of the screw and the gear transmission is a conventional structure, and the connection manner is also the prior art, and therefore, it is not described herein again.
The controllable rotary electrostatic spinning device further comprises a liquid supply mechanism 4 for supplying liquid to the liquid storage tank 3, and the liquid supply mechanism 4 is connected with the liquid storage tank 3 through a liquid guide pipe.
In summary, the following steps: by arranging the spinning ball 1, the spinning ball 1 is driven by the driving mechanism 2 to rotate in the spinning solution, so that the spinning solution on the surface of the spinning ball 1 exposed in the air is continuously replaced and updated, the spinning solution is prevented from being solidified in the air, and the dispersibility of substances in the spinning solution and the uniformity of the solution are improved; and, set up receiving mechanism 6 into the arc form, the centre of a circle of the receiving mechanism 6 of arc form and the centre of a circle coincidence or basic coincidence of spinning spheroid 1 to guarantee that the surface of spinning spheroid 1 equals to everywhere distance of the receiving mechanism 6 of arc form, make the efflux can receive the draft of the same condition, thereby improve the diameter distribution homogeneity of nanofiber and the homogeneity of morphological structure.
The technical features of the embodiments described above may be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the embodiments described above are not described, but should be considered as being within the scope of the present specification as long as there is no contradiction between the combinations of the technical features.
The above-mentioned embodiments only represent some embodiments of the present invention, and the description thereof is specific and detailed, but not to be construed as limiting the scope of the present invention. It should be noted that, for those skilled in the art, without departing from the spirit of the present invention, several variations and modifications can be made, which are within the scope of the present invention. Therefore, the protection scope of the present invention should be subject to the appended claims.
Claims (10)
1. A controllable rotary electrospinning device comprising:
the liquid storage tank is used for placing spinning solution;
a spinning sphere, at least a portion of which is immersed in the spinning solution, and which is rotatable relative to the reservoir;
the driving mechanism drives the spinning ball to rotate;
the receiving mechanism is arranged on one side of the liquid storage tank;
the power supply mechanism is electrically connected with the liquid storage tank to form an electrostatic field with the receiving mechanism;
the receiving mechanism is arc-shaped, and the circle center of the arc-shaped receiving mechanism is coincided with or basically coincided with the circle center of the spinning ball body.
2. The controllable rotary electrospinning device of claim 1, wherein the arc-shaped receiving mechanism comprises a first electrically conductive metal member and a second electrically conductive metal member, the first electrically conductive metal member and the second electrically conductive metal member being arranged in parallel.
3. The controllable rotary electrospinning device of claim 2, wherein the material of the first conductive metal member and the second conductive metal member is any one of copper, iron, silver, and gold.
4. The controllable rotary electrospinning device of claim 1, wherein the spinning spheres are disposed in the spinning solution in a volume that is half or nearly half of the total volume of the spinning spheres.
5. The controllable rotary electrospinning device of claim 1, wherein the material of the spinning spheres is a conductive metal.
6. The controllable rotary electrospinning device of claim 1, wherein the drive mechanism is a drive motor.
7. The controllable rotary electrospinning device of claim 1, wherein the driving mechanism is a lead screw and a transmission mechanism connected to the lead screw for converting linear motion of the lead screw into rotational motion.
8. The controllable rotary electrospinning device of claim 7, wherein the drive mechanism is a gear drive.
9. The controllable rotary electrospinning device of claim 1, further comprising a liquid supply mechanism for supplying liquid to the reservoir, the liquid supply mechanism being connected to the reservoir by a liquid conduit.
10. The controllable rotary electrospinning device of claim 1, wherein the material of the reservoir is a conductive metal.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202022740950.1U CN213708564U (en) | 2020-11-24 | 2020-11-24 | Controllable rotary electrostatic spinning device |
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| CN202022740950.1U CN213708564U (en) | 2020-11-24 | 2020-11-24 | Controllable rotary electrostatic spinning device |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112376120A (en) * | 2020-11-24 | 2021-02-19 | 苏州大学 | Controllable rotary electrostatic spinning device |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112376120A (en) * | 2020-11-24 | 2021-02-19 | 苏州大学 | Controllable rotary electrostatic spinning device |
| WO2022110684A1 (en) * | 2020-11-24 | 2022-06-02 | 苏州大学 | Controllable rotary electrostatic spinning device |
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