CN112899795A - Electrostatic spinning device - Google Patents
Electrostatic spinning device Download PDFInfo
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- CN112899795A CN112899795A CN202110318222.8A CN202110318222A CN112899795A CN 112899795 A CN112899795 A CN 112899795A CN 202110318222 A CN202110318222 A CN 202110318222A CN 112899795 A CN112899795 A CN 112899795A
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- Prior art keywords
- spinning
- receiving
- detection
- driving
- electrospinning apparatus
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- D—TEXTILES; PAPER
- D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
- D01D—MECHANICAL METHODS OR APPARATUS IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES OR RIBBONS
- D01D5/00—Formation of filaments, threads, or the like
- D01D5/0007—Electro-spinning
- D01D5/0061—Electro-spinning characterised by the electro-spinning apparatus
-
- D—TEXTILES; PAPER
- D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
- D01D—MECHANICAL METHODS OR APPARATUS IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES OR RIBBONS
- D01D5/00—Formation of filaments, threads, or the like
- D01D5/0007—Electro-spinning
- D01D5/0061—Electro-spinning characterised by the electro-spinning apparatus
- D01D5/0076—Electro-spinning characterised by the electro-spinning apparatus characterised by the collecting device, e.g. drum, wheel, endless belt, plate or grid
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Textile Engineering (AREA)
- Spinning Methods And Devices For Manufacturing Artificial Fibers (AREA)
- Nonwoven Fabrics (AREA)
Abstract
An electrostatic spinning device is in signal connection with a control mechanism and comprises: the spinning mechanism is used for containing spinning solution; the receiving mechanism is arranged on one side of the spinning mechanism; the power supply mechanism is electrically connected with the spinning mechanism and the receiving mechanism to form an electrostatic field, and the spinning solution is stretched to form jet flow under the action of the electrostatic field; the electrostatic spinning device also comprises a driving mechanism for driving the spinning mechanism and/or the receiving mechanism to move; each detection piece is provided with a detection area, the detection piece sends a detection value to the control mechanism, the control mechanism receives the detection signal to compare the detection values, and controls the driving mechanism to drive the spinning mechanism and/or the receiving mechanism to move according to the comparison result, so that the spinning mechanism is located in the detection area of the detection piece with the minimum detection value. The method can improve the spinning efficiency and can ensure that the thickness of the prepared nanofiber membrane is uniform.
Description
[ technical field ] A method for producing a semiconductor device
The invention relates to an electrostatic spinning device, and belongs to the technical field of electrostatic spinning.
[ background of the invention ]
The electrostatic spinning is the simplest method for preparing the nano fiber, and the prepared nano fiber has high porosity, high specific surface area and high surface activity and is widely applied to the fields of medical treatment and health, textile engineering, electronic engineering, aerospace and military engineering.
The traditional electrostatic spinning technology generally adopts single-needle spinning, and has the problems of easy blockage of spinning needles, low yield, uneven thickness of prepared nanofiber membranes and the like, so that the development of the nanofiber membranes is hindered.
Accordingly, there is a need for improvements in the art that overcome the deficiencies in the prior art.
[ summary of the invention ]
The invention aims to provide an electrostatic spinning device, which can improve spinning efficiency and can make the thickness of a prepared nanofiber membrane uniform.
The purpose of the invention is realized by the following technical scheme: an electrostatic spinning device is in signal connection with a control mechanism and comprises:
the spinning mechanism is used for containing spinning solution;
the receiving mechanism is arranged on one side of the spinning mechanism;
the power supply mechanism is electrically connected with the spinning mechanism and the receiving mechanism to form an electrostatic field, and the spinning solution is stretched to form jet flow under the action of the electrostatic field;
the receiving mechanism is provided with at least two detection pieces, the detection pieces are used for detecting the force applied to the receiving mechanism by the jet flow, and the electrostatic spinning device further comprises a driving mechanism for driving the spinning mechanism and/or the receiving mechanism to move;
each detection piece is provided with a detection area, the detection piece sends a detection value to the control mechanism, the control mechanism receives the detection signal to compare the detection values, and controls the driving mechanism to drive the spinning mechanism and/or the receiving mechanism to move according to the comparison result, so that the spinning mechanism is located in the detection area of the detection piece with the smallest detection value.
In one embodiment, the receiving mechanism is a receiving net in a planar net shape, the receiving net has at least two grid points, and the detecting element is arranged at the grid points.
In one embodiment, the driving mechanism comprises a first driving member for driving the receiving net or the spinning mechanism to move along a first direction and a second driving member for driving the receiving net or the spinning mechanism to move along a second direction, and the first direction and the second direction are arranged in a crossed mode.
In one embodiment, the receiving mechanism is a cylindrical receiving roller, and the detecting members are uniformly distributed on the receiving roller.
In one embodiment, the driving mechanism comprises a first driving member for driving the receiving roller to rotate and a second driving member for driving the spinning mechanism or the receiving roller to move along the axial length direction of the receiving roller.
In one embodiment, the receiving means has a receiving area and the jet has a moving area, the moving area always being within the receiving area.
In one embodiment, the moving area is always within the detection area.
In one embodiment, the detection member is a micro-pressure sensor.
In one embodiment, the electrostatic spinning device further comprises a liquid supply mechanism communicated with the spinning mechanism.
In one embodiment, the control mechanism is a controller.
Compared with the prior art, the invention has the following beneficial effects: through being provided with the detection piece, the detection piece is used for detecting the efflux and applys the power for receiving mechanism, the efflux receipt condition in order to learn the minimum detection piece department of detection value is compared through the detected value with different detection pieces, control mechanism control spouts a silk mechanism and removes this detection piece department and carries out the spinning, so that the efflux in the detection zone of this detection piece receives the efflux thickness and approaches to the efflux thickness in the detection zone of other detection pieces, thereby make the thickness of nanofiber rice prepared even, the spinning efficiency is improved, and is rapid and convenient.
[ description of the drawings ]
FIG. 1 is a schematic view of the structure of an electrospinning device according to the present invention.
FIG. 2 is another schematic view of the electrospinning device according to the present invention.
FIG. 3 is a schematic view of still another structure of the electrospinning device of the present invention.
[ detailed description ] embodiments
In order to make the aforementioned objects, features and advantages of the present invention comprehensible, embodiments accompanied with figures are described in detail below. It is to be understood that the specific embodiments described herein are merely illustrative of the invention and are not limiting of the invention. It should be further noted that, for the convenience of description, only some of the structures related to the present invention are shown in the drawings, not all of the structures. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
The terms "comprising" and "having," as well as any variations thereof, in the present invention are intended to cover non-exclusive inclusions. For example, a process, method, system, article, or apparatus that comprises a list of steps or elements is not limited to only those steps or elements listed, but may alternatively include other steps or elements not listed, or inherent to such process, method, article, or apparatus.
Reference herein to "an embodiment" means that a particular feature, structure, or characteristic described in connection with the embodiment can be included in at least one embodiment of the invention. The appearances of the phrase in various places in the specification are not necessarily all referring to the same embodiment, nor are separate or alternative embodiments mutually exclusive of other embodiments. It is explicitly and implicitly understood by one skilled in the art that the embodiments described herein can be combined with other embodiments.
Referring to fig. 1 to 3, an electrospinning apparatus according to a preferred embodiment of the present invention is connected to a control mechanism 8 (not shown) by signals. In the present embodiment, the control mechanism 8 is a controller. A comparison module is arranged in the controller and used for comparing the received numerical values to obtain the maximum or minimum numerical value. The comparison module may be implemented by a logic circuit, or may be implemented directly by a determination program, which is not specifically limited and described herein.
Specifically, the electrostatic spinning device comprises a spinning mechanism 1 for containing spinning solution, a receiving mechanism 2 arranged on one side of the spinning mechanism 1, and a power supply mechanism 5, wherein the power supply mechanism 5 is electrically connected with the spinning mechanism 1 and the receiving mechanism 2 respectively to form an electrostatic field, so that the spinning solution is stretched to form a jet flow 6 under the action of the electrostatic field. In this embodiment, the power supply mechanism 5 is a high voltage electrostatic generator, the negative electrode of which is connected to the receiving mechanism 2, the positive electrode of which is connected to the spinning mechanism 1, and the receiving mechanism 2 is grounded. Therefore, in the present embodiment, the material for manufacturing the receiving mechanism 2 and the spinning mechanism 1 is conductive metal, and the conductive metal may be copper, iron, etc., and is not particularly limited herein, depending on the actual situation. In this embodiment, the spinning mechanism 1 is a liquid reservoir having an opening instead of a single needle with a small diameter, and can generate a plurality of jets to improve the spinning yield. The receiving means 2 is arranged above the opening to accurately receive the jet 6.
In order to prevent the jet flow 6 from being distributed unevenly on the receiving mechanism 2, which results in uneven thickness of the prepared nanofiber membrane, at least two detecting elements 3 are arranged on the receiving mechanism 2 of the present invention, and the detecting elements 3 are used for detecting the force applied by the jet flow 6 to the receiving mechanism 2. By detecting the force exerted by the jet 6 deposition on the receiving means 2 by the detecting element 3, it is possible to quickly determine how much of the jet 6 is there at the receiving means 2. Correspondingly, the electrostatic spinning device also comprises a driving mechanism 4 for driving the spinning mechanism 1 and/or the receiving mechanism 2 to move. As described above, the power supply unit 5 is electrically connected to the spinning unit 1 and the receiving unit 2, and is generally electrically connected by an electric wire. Therefore, the receiving means 2 and/or the spinning means 1 are moved by a distance less than the length of the wire.
Each detection piece 3 is provided with a detection area, the detection piece 3 sends a detection value to the control mechanism 8, the control mechanism 8 receives a detection signal to compare the detection values, and controls the driving mechanism 4 to drive the spinning mechanism 1 and/or the receiving mechanism 2 to move according to the comparison result, so that the spinning mechanism 1 is positioned in the detection area of the detection piece 3 with the minimum detection value. The detection areas can be divided according to the actual detection conditions of the detection pieces 3, and it should be noted that the overall area of the detection areas of all the detection pieces 3 should be equal to the overall area of the receiving mechanism 2, or slightly smaller than the overall area of the receiving mechanism 2. The definition of slightly less is: the area of the detection region is at least 90% or more of the entire area of the receiving mechanism 2. In this embodiment, the number of the detecting members 3 is plural, and the controller receives the detecting values of the detecting members 3 at the same time, and then compares the detecting values in the comparing module to obtain the minimum detecting value. In the present embodiment, the detecting member 3 is a micro-pressure sensor, and accordingly, the detected value is a pressure value. Indeed, in other embodiments, the detecting element 3 may be other, and is not limited herein, depending on the actual situation.
The driving mechanism 4 drives one of the spinning mechanism 1 or the receiving mechanism 2 to move, or simultaneously drives the spinning mechanism 1 and the receiving mechanism 2 to move, and can be set according to actual conditions. When the receiving mechanism 2 is a receiving net in a planar mesh shape, the receiving net has at least two mesh points, and the detecting member 3 is disposed at the mesh points. The detecting pieces 3 are provided with a plurality of corresponding grid points, and the number of the grid points corresponds to the number of the detecting pieces 3 one by one. The driving mechanism 4 comprises a first driving piece for driving the receiving net or the spinning mechanism 1 to move along a first direction and a second driving piece for driving the receiving net or the spinning mechanism 1 to move along a second direction, and the first direction and the second direction are arranged in a crossed mode. In the present embodiment, the first direction is a horizontal direction (indicated by arrow a), and the second direction is a vertical direction (indicated by arrow b).
In order to enable the spinning mechanism 1 to be located in the detection area of the detection member 3 with the minimum detection value quickly after comparing the results, in the embodiment, please refer to fig. 1 specifically, the driving mechanism 4 drives the spinning mechanism 1 to move only. The purpose of this is to: the position of the receiving net is kept unchanged, and correspondingly, the position of the detecting piece 3 is also kept unchanged, and the control mechanism 8 does not need to acquire the position of the detecting piece 3 to control the spinning mechanism 1 to move. Accordingly, the first driving member and the second driving member only drive the spinning mechanism 1 to move. The first driving member and the second driving member may be driving members that perform linear motion, such as a screw rod, a hydraulic cylinder, an electric cylinder, etc., or may also be driving members that perform rotational motion, such as a driving motor, etc., but the driving motor and the spinning mechanism 1 are further provided with driving members for converting the rotational motion into the linear motion, such as a gear transmission, etc., which are not described herein again.
Indeed, in other embodiments, the driving mechanism 4 may only drive the receiving net to move, and at this time, the position of the spinning mechanism 1 remains unchanged, and the driving mechanism 4 may quickly drive the detection area of the detection element 3 with the minimum detection value to be located above the spinning mechanism 1, which may also achieve the above-mentioned effects. Referring to fig. 2, if the driving mechanism 4 drives the spinning mechanism 1 and the receiving net to move simultaneously, a plurality of positioning sensors are further disposed on the receiving net, and each positioning sensor corresponds to one of the detecting members 3 to obtain the position of each detecting member 3.
Referring to fig. 3, when the receiving mechanism 2 is a cylindrical receiving roller, the detecting members 3 are uniformly distributed on the receiving roller. Correspondingly, the driving mechanism 4 comprises a first driving member for driving the receiving roller to rotate and a second driving member for driving the spinning mechanism 1 or the receiving roller to move along the axial length direction of the receiving roller. In the present embodiment, the first driving member drives the receiving roller to rotate, the second driving member drives the receiving roller to move, and the first driving member and the second driving member do not work simultaneously, so that the position of the spinning mechanism 1 is kept unchanged. Correspondingly, the first driving member may be a driving motor, and the second driving member may be a lead screw, etc., which are not described herein. At this time, the receiving roller is further provided with angle sensors corresponding to the detecting members 3 one to one so as to know the installation angle of each detecting member 3.
Indeed, in other embodiments, the first driving member may drive the receiving roller to rotate, and the second driving member may drive the spinning mechanism 1 to move. At this time, the receiving roller is further provided with angle sensors and positioning sensors which are in one-to-one correspondence with the detection pieces 3 so as to know the installation positions and installation angles of the detection pieces 3.
The receiving means 2 has a receiving area and the jet 6 has a movement area, which is always within the receiving area. Wherein, the moving area of the jet flow 6 is specifically as follows: the jet 6 extends from the surface of the spinning device 1 to the area formed by the movement path received on the surface of the receiving device 2. The purpose of this is to: the jet 6 is always received on the receiving means 2 so that no waste is caused. More specifically, the removal region is all the time in the detection region, i.e. when spouting silk mechanism 1 and being located one of them detection region, efflux 6 can not be received in other detection regions to the thickness of the nanofiber membrane that better assurance was prepared is even.
In order to improve the spinning efficiency, the electrostatic spinning device also comprises a liquid supply mechanism 7 communicated with the spinning mechanism 1. The liquid supply mechanism 7 is set according to the movement of the spinning mechanism 1. If the spinning mechanism 1 is movable, correspondingly, the liquid supply mechanism 7 can be communicated with the spinning mechanism 1 through a telescopic liquid guide pipe, and the telescopic distance of the telescopic liquid guide pipe is greater than the moving distance of the spinning mechanism 1; if the position of the spinning mechanism 1 is kept unchanged, the liquid supply mechanism 7 is connected with the spinning mechanism 1 through a liquid guide pipe with a fixed length, and the position is not particularly limited and is determined according to actual conditions.
In summary, the following steps: through being provided with detection piece 3, detection piece 3 is used for detecting the power that efflux 6 applyed for receiving mechanism 2, the efflux 6 receipt condition in order to learn the detection value 3 department that the detection value is minimum is compared through the detected value with different detection pieces 3, 8 control of control mechanism spout 1 and remove this detection piece 3 department and spin, so that 6 receipt thickness of efflux in the detection area of this detection piece 3 are close to 6 thickness of efflux in the detection area of other detection pieces 3, thereby make the thickness of nanofiber rice prepared even, the spinning efficiency is improved, and is rapid and convenient.
The above is only one embodiment of the present invention, and any other modifications based on the concept of the present invention are considered as the protection scope of the present invention.
Claims (10)
1. An electrostatic spinning device is in signal connection with a control mechanism, and is characterized by comprising:
the spinning mechanism is used for containing spinning solution;
the receiving mechanism is arranged on one side of the spinning mechanism;
the power supply mechanism is electrically connected with the spinning mechanism and the receiving mechanism to form an electrostatic field, and the spinning solution is stretched to form jet flow under the action of the electrostatic field;
the receiving mechanism is provided with at least two detection pieces, the detection pieces are used for detecting the force applied to the receiving mechanism by the jet flow, and the electrostatic spinning device further comprises a driving mechanism for driving the spinning mechanism and/or the receiving mechanism to move;
each detection piece is provided with a detection area, the detection piece sends a detection value to the control mechanism, the control mechanism receives the detection signal to compare the detection values, and controls the driving mechanism to drive the spinning mechanism and/or the receiving mechanism to move according to the comparison result, so that the spinning mechanism is located in the detection area of the detection piece with the smallest detection value.
2. The electrospinning apparatus of claim 1, wherein the receiving mechanism is a receiving net in a planar net shape, the receiving net having at least two grid points, and the detecting member is disposed at the grid points.
3. The electrospinning apparatus of claim 2, wherein the drive mechanism comprises a first drive member for driving the receiving web or the spinning mechanism to move in a first direction and a second drive member for driving the receiving web or the spinning mechanism to move in a second direction, the first direction and the second direction being arranged crosswise.
4. The electrospinning apparatus of claim 1, wherein the receiving mechanism is a cylindrical receiving drum and the detecting members are evenly distributed on the receiving drum.
5. The electrospinning apparatus of claim 4, wherein the drive mechanism comprises a first drive member for driving the receiving drum to rotate and a second drive member for driving the spinning mechanism or the receiving drum to move along the axial length of the receiving drum.
6. The electrospinning apparatus of claim 1, wherein the receiving mechanism has a receiving area and the jet has a moving area, the moving area being always within the receiving area.
7. The electrospinning apparatus of claim 6, wherein the moving region is always within the detection region.
8. The electrospinning apparatus of claim 1, wherein the detecting member is a micro-pressure sensor.
9. The electrospinning apparatus of claim 1, further comprising a liquid supply mechanism in communication with the spinning mechanism.
10. The electrospinning apparatus of claim 1, wherein the control mechanism is a controller.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110318222.8A CN112899795A (en) | 2021-03-25 | 2021-03-25 | Electrostatic spinning device |
| PCT/CN2021/094120 WO2022198770A1 (en) | 2021-03-25 | 2021-05-17 | Electrospinning apparatus |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110318222.8A CN112899795A (en) | 2021-03-25 | 2021-03-25 | Electrostatic spinning device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN112899795A true CN112899795A (en) | 2021-06-04 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110318222.8A Pending CN112899795A (en) | 2021-03-25 | 2021-03-25 | Electrostatic spinning device |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN112899795A (en) |
| WO (1) | WO2022198770A1 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114411273A (en) * | 2022-01-27 | 2022-04-29 | 聚纳达(青岛)科技有限公司 | Electrostatic spinning control system |
Family Cites Families (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101929035B (en) * | 2009-06-24 | 2011-11-16 | 中国科学院理化技术研究所 | Warp-weft directional electrostatic spinning film-preparing device and application method thereof |
| CN102978719B (en) * | 2012-12-21 | 2015-05-13 | 厦门大学 | Vacuum electro-spinning device |
| WO2014171624A1 (en) * | 2013-04-17 | 2014-10-23 | (주)에프티이앤이 | Electrospinning apparatus |
| CN105862146B (en) * | 2015-12-31 | 2018-05-18 | 广东工业大学 | A kind of composite electrospun device for preparing three-D micro-nano conductive tissue engineering rack |
| CN107829157B (en) * | 2017-01-13 | 2019-10-08 | 大连民族大学 | A kind of electrospinning process |
| CN206570444U (en) * | 2017-01-26 | 2017-10-20 | 上海工程技术大学 | Electrospinning device |
| JP2019167641A (en) * | 2018-03-22 | 2019-10-03 | パナソニックＩｐマネジメント株式会社 | Electrospinning device and manufacturing method of fiber assembly |
| CN211367826U (en) * | 2019-10-28 | 2020-08-28 | 季华实验室 | Near-field direct-writing electrostatic spinning fiber track and morphology control system |
| CN110656386A (en) * | 2019-10-28 | 2020-01-07 | 季华实验室 | Near-field direct-writing electrostatic spinning fiber track and morphology control system |
| CN214937993U (en) * | 2021-03-25 | 2021-11-30 | 苏州大学 | Electrostatic spinning device |
-
2021
- 2021-03-25 CN CN202110318222.8A patent/CN112899795A/en active Pending
- 2021-05-17 WO PCT/CN2021/094120 patent/WO2022198770A1/en unknown
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114411273A (en) * | 2022-01-27 | 2022-04-29 | 聚纳达(青岛)科技有限公司 | Electrostatic spinning control system |
| CN114411273B (en) * | 2022-01-27 | 2022-11-11 | 青岛中科凯尔科技有限公司 | Electrostatic spinning control system |
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| Publication number | Publication date |
|---|---|
| WO2022198770A1 (en) | 2022-09-29 |
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