CN113930854A - Handheld micro-separation electrospinning device and using method thereof - Google Patents
Handheld micro-separation electrospinning device and using method thereof Download PDFInfo
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- CN113930854A CN113930854A CN202111352468.3A CN202111352468A CN113930854A CN 113930854 A CN113930854 A CN 113930854A CN 202111352468 A CN202111352468 A CN 202111352468A CN 113930854 A CN113930854 A CN 113930854A
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- 238000000034 method Methods 0.000 title claims abstract description 32
- 238000001523 electrospinning Methods 0.000 title claims abstract description 31
- 238000000926 separation method Methods 0.000 title claims abstract description 28
- 239000002184 metal Substances 0.000 claims abstract description 141
- 229910052751 metal Inorganic materials 0.000 claims abstract description 141
- 239000007788 liquid Substances 0.000 claims abstract description 57
- 239000004033 plastic Substances 0.000 claims abstract description 43
- 238000003860 storage Methods 0.000 claims abstract description 34
- 239000011229 interlayer Substances 0.000 claims abstract description 29
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims abstract description 23
- 229910052742 iron Inorganic materials 0.000 claims abstract description 12
- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 claims abstract description 9
- 229910052744 lithium Inorganic materials 0.000 claims abstract description 9
- 230000003068 static effect Effects 0.000 claims description 21
- 238000001802 infusion Methods 0.000 claims description 20
- 238000009987 spinning Methods 0.000 claims description 20
- 230000005611 electricity Effects 0.000 claims description 16
- 230000005684 electric field Effects 0.000 claims description 12
- 239000000835 fiber Substances 0.000 claims description 11
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 10
- 230000009699 differential effect Effects 0.000 claims description 9
- 238000007664 blowing Methods 0.000 claims description 6
- 238000003825 pressing Methods 0.000 claims description 6
- 239000007769 metal material Substances 0.000 claims description 5
- 239000004831 Hot glue Substances 0.000 claims description 4
- 238000003466 welding Methods 0.000 claims description 4
- 230000003993 interaction Effects 0.000 claims description 3
- 230000004323 axial length Effects 0.000 claims description 2
- 238000009826 distribution Methods 0.000 claims description 2
- 238000001035 drying Methods 0.000 claims 1
- 238000010041 electrostatic spinning Methods 0.000 abstract description 18
- 239000000463 material Substances 0.000 abstract description 8
- 238000013461 design Methods 0.000 abstract description 6
- 239000002904 solvent Substances 0.000 abstract description 3
- 238000004140 cleaning Methods 0.000 abstract description 2
- 238000002360 preparation method Methods 0.000 description 5
- 238000010586 diagram Methods 0.000 description 3
- 230000009977 dual effect Effects 0.000 description 3
- 239000002131 composite material Substances 0.000 description 2
- 230000005686 electrostatic field Effects 0.000 description 2
- 238000010438 heat treatment Methods 0.000 description 2
- 239000011810 insulating material Substances 0.000 description 2
- 150000002739 metals Chemical class 0.000 description 2
- 239000002121 nanofiber Substances 0.000 description 2
- 238000011160 research Methods 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- 239000004696 Poly ether ether ketone Substances 0.000 description 1
- 238000010923 batch production Methods 0.000 description 1
- 230000015556 catabolic process Effects 0.000 description 1
- 229940079593 drug Drugs 0.000 description 1
- 239000003814 drug Substances 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 238000011900 installation process Methods 0.000 description 1
- 238000001728 nano-filtration Methods 0.000 description 1
- 239000002120 nanofilm Substances 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
- 229920002530 polyetherether ketone Polymers 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 229920002994 synthetic fiber Polymers 0.000 description 1
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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)
- Centrifugal Separators (AREA)
Abstract
The invention discloses a hand-held micro-separation electrospinning device and a using method thereof, the device mainly comprises a safety shield, an iron wire, a metal baffle plate, a metal interlayer, a metal rotary cylinder with blades inside, a plastic shell, a deep groove ball bearing, a manual eccentric wheel, a liquid conveying pipe, a liquid storage tank, a turntable, a hexagonal bolt, an electric fan, a grounding wire, a lithium battery, a micro high-voltage electrostatic generator, a spring and a click switch, the electric fan, the micro high-voltage electrostatic generator and the metal rotary cylinder are utilized to complete centrifugal electrospinning of solution, and the interlayer and other structures are arranged to ensure that the solvent in the spinnable solution is volatilized into the air as little as possible before generating jet flow, thereby meeting the design requirements of miniaturization, light weight and portability of equipment, the drip speed of the spinnable solution can be adjusted by the manual eccentric wheel, the whole equipment has high assembling and disassembling performance, and is convenient for cleaning and replacing materials and device parts, the user can also feel the whole principle and process of the centrifugal electrostatic spinning of the solution more intuitively.
Description
Technical Field
The invention relates to a handheld micro-separation electrospinning device and a using method thereof, which comprise two different power supply modes and element arrangement thereof and belong to the field of electrostatic spinning. The device is used for preparing the nano-fiber by a solution electrostatic spinning method.
Background
The prior solution electrostatic spinning method is a method for preparing micro-nano fibers, and compared with other methods, the solution electrostatic spinning method has the advantages of wide raw material source, low spinning cost, large-scale preparation and the like. The produced micro-nano film shows great application potential in the fields of micro-nano filtration, lithium battery diaphragms, biological medicines and the like, and attracts the wide attention of researchers.
The existing research and industrial application generate a great amount of innovation around electrostatic spinning fiber batch production devices, but a portable small-volume easy-to-operate miniature electrostatic spinning device is not designed. Because the small-sized device has great potential in the aspects of laboratory application, household use, clinical medical use, teaching demonstration teaching aid and the like, the handheld micro-separation electrospinning device which is portable, small in size and easy to operate is sought and designed, and the handheld micro-separation electrospinning device has wide application prospect and research value.
In order to solve the problems, the invention provides a handheld micro-separation electrospinning device and a using method thereof. By utilizing two main components of the electric fan and the metal rotary cylinder, the traditional single-needle electrostatic spinning process is improved, so that the diameter of the manufactured fiber is smaller and the yield is higher under the introduction of differential action. The device can be widely used for preparing small-batch fibers in the aspects of laboratory application, household use, clinical use, teaching demonstration teaching aid and the like.
Disclosure of Invention
The invention provides a handheld micro-separation electrospinning device and a using method thereof, wherein the air flow blown out by an electric fan is used for driving a tail rotary drum to rotate, the main process flow of the whole centrifugal electrospinning is completed, and the interlayer and other structures are arranged, so that the solvent in a spinnable solution is volatilized into the air as little as possible before jet flow is generated, the design requirements of miniaturization, light weight and portability of equipment are met, and the method for preparing fibers by using the spinnable solution is easier.
In order to achieve the purpose, the invention provides a handheld micro-separation electrospinning device which mainly comprises a safety shield, an iron wire, a metal baffle, a metal interlayer, a metal rotary cylinder with blades inside, a plastic shell, a deep groove ball bearing, a manual eccentric wheel, a liquid conveying pipe, a liquid storage tank, a rotary table, a hexagonal bolt, an electric fan, a grounding wire, a lithium battery, a micro high-voltage electrostatic generator, a spring and a click switch, wherein the plastic shell is of an inverted L shape and is similar to a household hair drier, the safety shield, the metal rotary cylinder with blades inside and the deep groove ball bearing are sequentially installed at the outlet end of the right side wire of the horizontal section of the plastic shell, and the outer diameter of the deep groove ball bearing is fixed in a groove in the plastic shell; the fan blades are fixed in the rear end of the metal rotating cylinder with the fan blades inside, a metal interlayer is welded on the inner diameter of the metal rotating cylinder with the fan blades inside, a gap is reserved between the inner diameter of the metal rotating cylinder with the fan blades inside and the outer diameter of the metal interlayer, the distance between the metal interlayer and the metal rotating cylinder is 0.5-1cm, when the distance is too small, a spinnable solution is difficult to enter the interlayer, when the distance is too large, the significance of establishing the interlayer is lost, and the two influences the differential effect of the rotating cylinder; spinning liquid can fly out of the gap, a metal baffle plate is fixed to the right side of the fan blade at a certain distance from an outlet through welding of an iron wire, the metal baffle plate is 1mm thick, spinning liquid blown out along with the fan blade is blocked by the metal baffle plate to a metal interlayer, the iron wire, the metal baffle plate and the like are welded to the specified position of the metal rotating cylinder with the fan blade, a round hole is formed in the left end of the metal rotating cylinder with the fan blade, the right end of the metal rotating cylinder with the fan blade and the right end of the metal interlayer can be flush, a certain distance is formed between the left end of the metal rotating cylinder with the fan blade and the left end of the metal interlayer, the axial length of the metal interlayer is slightly short, and most of the spinning liquid is guaranteed to flow into the gap between the metal interlayer and the metal rotating cylinder; the metal baffle is fixed on the inner side of the metal interlayer by an iron wire and is coaxial with the metal rotary cylinder, the axial error of the metal baffle and the metal rotary cylinder is kept within 2mm, the difficulty of axial fixation is increased when the metal baffle is too thick, and the rotation of the rotary cylinder is influenced when the axial error is too large; slowly screwing a metal rotary cylinder with fan blades inside into an inner ring of a deep groove ball bearing, ensuring symmetrical screwing in during the period, ensuring that the metal rotary cylinder does not have obvious offset in the axial direction, ensuring that the rotary cylinder is coaxial with the deep groove ball bearing, and controlling the axial deviation of the rotary cylinder and the inner ring of the deep groove ball bearing within 0.5mm, wherein if the axial deviation is more than 0.5mm, the whole device generates severe vibration in the operation process, so that the whole centrifugal differential electrostatic spinning process is influenced; the lithium battery, the miniature high-voltage electrostatic generator, the electric fan and the liquid storage tank are fixedly arranged in a vertical hand-holding section of the L section of the plastic shell, and the shape of the electric fan is arc-shaped and is convenient for holding; connecting corresponding circuits to complete the connection of the internal circuits of the device, wherein the connection comprises welding a high-voltage output line to a certain point on the exposed outer ring of the deep groove ball bearing; the liquid storage tank is fixed at the upper part of the whole device through a groove in the plastic shell, and the liquid outlet is arranged at the bottom of the liquid storage tank and close to one side of the plastic shell; the infusion tube is connected with the liquid storage tank through the hot melt adhesive and then is clamped by the bulge on the plastic shell to be close to the inner wall, and the manual eccentric wheel also protrudes out of the shell; the end of the infusion tube is fixed by the high-foot bulge inside the shell and then is placed into the metal rotary cylinder, so that the end of the infusion tube is placed into the rotary cylinder by about 5cm, the infusion tube can escape from the rotary cylinder in the experiment process due to the excessively short entering length, the entering length cannot be too long, and the infusion tube cannot enter the excessively long infusion tube to cause the end of the infusion tube not to droop any more. The device utilizes a normal-temperature electrostatic spinning solution to feed, and can be a solution which can be subjected to solution spinning at normal temperature, such as PPESK spinning solution, PES-C/PES-CB composite spinning solution and the like; the spinning solution is stored in a liquid storage tank, and the material of the liquid storage tank can be a plastic material with stable chemical properties such as PP and the like; the liquid inlet of the liquid storage tank is closed by a hexagon bolt after the electrostatic spinning solution at normal temperature is poured from the liquid inlet, and the turntable for controlling air pressure balance is also arranged at the corresponding position of the liquid storage tank.
In addition to describing a device design that has all the components collected in a plastic housing and is powered by a dc battery, the present invention also describes a device design that has an electrostatic generator placed outside the plastic housing and is powered by 220V ac.
In the installation process of the handheld micro-separation electrospinning device, the liquid storage tank is fixed at the upper part of the whole device through the groove in the plastic shell, and the liquid discharge port is arranged at the bottom of the liquid storage tank and is close to one side of the plastic shell; the infusion tube is connected with the liquid storage tank through the hot melt adhesive and then is clamped by the bulge on the plastic shell to be close to the inner wall, and the manual eccentric wheel also protrudes out of the shell; .
According to the handheld micro-separation electrospinning device, air enters from the holes in the plastic shell of the device, the air flows into the metal rotary cylinder after the air speed is increased by the fan blades of the electric fan, the diameter of each hole is 5mm, and the distribution area is as large as the effective area of each fan blade of the electric fan; the selection of the electric fan should pay attention to the following points: the two-stage speed regulation function is required, the metal rotary drum can rotate at the speed of 200r/min at the low-speed wind speed, and the metal rotary drum can rotate at the speed of 300r/min at the high-speed wind speed. According to the experimental result, when the speed of the metal rotary drum is less than 200r/min, the metal rotary drum is not enough to overcome the action of the gravity of the spinnable solution, the differential action is not strong, and the high-yield and low-diameter fibers cannot be produced; when the speed of the metal rotary drum is more than 300r/min, the air speed of the airflow blown out by the electric fan is too high, and the axial force borne by the solution is too large, so that the solution can escape from the rotary drum too early, and the electrostatic spinning process of the solution is also seriously influenced.
The invention relates to a handheld micro-separation electrospinning device, wherein a notch with the depth of 3cm is formed at the lower end of a groove for fixing a deep groove ball bearing by a plastic shell, a high-voltage output line of a micro high-voltage electrostatic generator is welded to an outer ring of the deep groove ball bearing through the notch, so that a metal rotating cylinder is integrally provided with high-voltage static electricity, a receiving plate is grounded, and an electric field is formed between the rotating cylinder and the receiving plate. It should be noted that when the device is used, high voltage static electricity is applied to about 20kV, and the spinning distance matched with the high voltage static electricity is about 10 cm. When the spinning distance is too large, the electrostatic acting force is too small, and jet flow cannot be generated; too small a spinning distance will result in breakdown and failure to continue spinning.
The invention relates to a handheld micro-separation electrospinning device, wherein the plastic shell is required to be non-conductive under 30kv static electricity and can be but not limited to polyetheretherketone; a detachable plastic safety cover is arranged at one end of the plastic shell, so that the user can be protected from being in direct contact with the spinnable solution and the high-voltage electrostatic field. The exhaust holes are uniformly distributed in the circumferential direction on the safety cover, gas cannot form rotational flow in the safety cover due to the fact that the gas cannot be discharged, safety is improved, and regular collection of fibers is facilitated. Infusion tube materials also require insulating materials and have a certain flexibility.
According to the handheld micro-separation electrospinning device, the diameter of the plastic shell at the handheld position is about 50mm, and the use experience of a user is influenced by too large or too small diameter, so that the portability and the practicability of the device are reduced.
The handheld micro-separation electrospinning device can also be powered by 220V alternating current, and relates to components for differentiating spinnable solution and other common components without obvious changes. The main changes are as follows: firstly, a power supply wire of the electric fan extends out of the bottom of the handheld end of the device; and secondly, the high-voltage generator is completely arranged outside, and the high-voltage output line is welded at the designated position of the outer ring of the bearing after penetrating into the handheld end of the device. The high voltage generator is provided with a button for controlling the high voltage output, the hand-held part of the shell cancels the design of a spring and a click switch, and the function of controlling the high voltage static electricity is completed by the button on the high voltage generator.
The invention relates to a use method of a handheld melt electrostatic spinning preparation device, which comprises the following steps of firstly, vertically fixing a receiving plate at a certain position, keeping the receiving plate not to be in direct contact with a metal material or a water source, and connecting a grounding wire on the receiving plate to metals such as an indoor metal water pipe, a heating radiator and the like; for the direct-current power supply device, a working circuit is switched on by pressing a point-action switch by hands, after the circuit becomes a path, an electric fan starts to rotate, a miniature high-voltage static generator starts to work, and high-voltage static electricity is connected to the outer ring of a bearing through a lead, so that the whole metal rotating cylinder is electrified; the airflow blown out by the electric fan can generate interaction force with the blades so as to enable the rotary cylinder to start rotating; when the rotating speed of the rotating cylinder is stabilized to a specified value, the device is aligned to the fixed receiving plate, the eccentric wheel on the liquid conveying pipe is rotated, the spinnable solution smoothly flows into the rotating cylinder from the liquid storage tank through the liquid conveying pipe, and the spinnable solution is gradually distributed in the whole metal rotating cylinder by blowing of wind and rotation of the rotating cylinder to achieve the differential effect; as the metal rotary cylinder rotates ceaselessly, the solution may flow onto the blades and finally onto the metal baffle; finally, because the metal rotary drum and the metal baffle plates on the metal rotary drum are both provided with high-voltage static electricity, an electric field is formed in the safety cover together with the grounded receiving device, and the fibers are stretched and refined under the dual actions of the electric field force and the airflow and are regularly collected on the receiving plates.
The invention relates to a use method of a handheld melt electrostatic spinning preparation device, which comprises the following steps of firstly, vertically fixing a receiving plate at a certain position, keeping the receiving plate not to be in direct contact with a metal material or a water source, and connecting a grounding wire on the receiving plate to metals such as an indoor metal water pipe, a heating radiator and the like; for the alternating current power supply device, the main difference from the direct current power supply device is that the high voltage generator is arranged externally, and the requirement on the appearance specification of the high voltage generator is also relaxed; before use, the power line of the high-voltage generator is connected to complete grounding; aligning the device to the fixed receiving plate, connecting a power line of an electric fan, starting the electric fan to rotate, pressing a button for outputting high voltage by a high-voltage generator when the rotating speed of the rotary cylinder is stabilized to a specified value, and connecting high-voltage static electricity to the outer ring of the bearing through a lead so as to electrify the whole metal rotary cylinder; the eccentric wheel on the infusion tube is rotated, the spinnable solution smoothly flows into the rotating cylinder from the liquid storage tank through the infusion tube, and is gradually distributed in the whole metal rotating cylinder by the blowing of wind and the rotation of the rotating cylinder, so that the differential effect is achieved; as the metal rotary cylinder rotates ceaselessly, the solution may flow onto the blades and onto the metal baffle; finally, because the metal rotary drum and the metal baffle plates on the metal rotary drum are both provided with high-voltage static electricity, an electric field is formed in the safety cover together with the grounded receiving device, and the fibers are stretched and refined under the dual actions of the electric field force and the airflow and are regularly collected on the receiving plates.
Compared with the prior art, the invention has the following advantages: the device structure is completely designed, three main components including the electric fan, the miniature high-voltage electrostatic generator and the metal rotary cylinder are used for completing the main process flow of solution centrifugal electrospinning, and the interlayer structure and the like are arranged to enable the solvent in the spinnable solution to be volatilized into the air as little as possible before jet flow is generated, so that the design requirements of equipment miniaturization, light weight and portability are met, and the method for preparing fibers by using the spinnable solution is easier.
The rotating speed of the electric fan of the device is adjustable, and the dripping speed of the spinnable solution can be adjusted by the manual eccentric wheel, so that the experimental requirements of different spinning solutions are met. The whole equipment is high in assembling and disassembling performance, cleaning and replacement of materials and device parts are facilitated, and a user can feel the whole principle and process of solution centrifugal electrostatic spinning more intuitively.
Drawings
Fig. 1 is a schematic structural diagram of a direct-current-powered handheld micro-separation electrospinning device according to the present invention.
Fig. 2 is an enlarged sectional view a-a of the structure shown in fig. 1.
Fig. 3 is a partially enlarged view of the end of the infusion tube of the structure shown in fig. 1.
Fig. 4 is a schematic structural diagram of a handheld micro-separation electrospinning device powered by ac.
In the figure: 1-a protective cover; 2-iron wire; 3-a metal baffle; 4-a metal interlayer; 5-a metal rotary cylinder with fan blades inside; 6-plastic shell; 7-deep groove ball bearing; 8-a manual eccentric wheel; 9-a transfusion tube; 10-a liquid storage tank; 11-a turntable; 12-hex bolts; 13-an electric fan; 14-a ground line; 15-a lithium battery; 16-a miniature high voltage electrostatic generator; 17-a spring; 18-jog switch; 19-receiving the plate.
Detailed Description
Fig. 1 is a schematic structural diagram of a dc-powered handheld micro-separation electrospinning device and a receiving plate thereof according to the present invention.
As shown in fig. 1, it mainly includes: the device comprises a safety cover 1, an iron wire 2, a metal baffle plate 3, a metal interlayer 4, a metal rotating cylinder 5 with fan blades inside, a plastic shell 6, a deep groove ball bearing 7, a manual eccentric wheel 8, a liquid conveying pipe 9, a liquid storage tank 10, a turntable 11, a hexagon bolt 12, an electric fan 13, a grounding wire 14, a lithium battery 15, a miniature high-voltage electrostatic generator 16, a spring 17, a inching switch 18 and a receiving plate 19.
The deep groove ball bearing 7 is placed in a corresponding groove in the plastic shell 6, and the metal interlayer 4, the iron wire 2, the metal baffle plate 3 and the like are welded in the appointed position of the metal rotary cylinder 5 with the fan blades inside; slowly screwing a metal rotary cylinder 5 with fan blades inside into an inner ring of a deep groove ball bearing 7, ensuring symmetrical screwing in the process and ensuring that the metal rotary cylinder does not have obvious deviation in the axial direction, and installing a lithium battery 15, a miniature high-voltage electrostatic generator 16, an electric fan 13 and a liquid storage tank 10 at corresponding positions in a plastic shell 6; and connecting corresponding circuits to complete the connection of the internal circuits of the device, wherein the connection comprises welding a high-voltage output line to an X point on the exposed outer ring of the deep groove ball bearing 7.
FIG. 2 is a cross-sectional view of a DC-powered hand-held micro-separation electrospinning apparatus taken along the direction A-A; fig. 3 is a partially enlarged view of the end of the infusion tube in the device.
The liquid storage tank 10 is fixed at the upper part of the whole device through a groove in the plastic shell 6, and the liquid outlet is arranged at the bottom of the liquid storage tank and close to one side of the plastic shell 6; the infusion tube 9 is connected with the liquid storage tank 10 through hot melt adhesive, and then is clamped by the bulge on the plastic shell 6 to be close to the inner wall, and the manual eccentric wheel 8 also bulges out of the shell; the tail end of the infusion tube 9 is fixed by a high-foot bulge in the shell and then is placed in the metal rotary cylinder 5, so that the tail end of the infusion tube 9 is ensured to be placed in the rotary cylinder with proper length. The device utilizes a normal-temperature electrostatic spinning solution to feed, and can be a solution which can be subjected to solution spinning at normal temperature, such as PPESK spinning solution, PES-C/PES-CB composite spinning solution and the like; the spinnable solution is stored in a liquid storage tank 10, and the material of the liquid storage tank 10 is a plastic material with stable chemical property; the spinnable solution is poured from the liquid inlet of the liquid storage tank 10 and then is closed by the hexagon bolt 12, and the turntable 11 for controlling the air pressure balance is also arranged at the corresponding position of the liquid storage tank 10.
Air enters from a hole on a plastic shell 6 of the device, and flows into the metal rotary cylinder 5 after the wind speed is increased by a fan blade of the electric fan 13; the electric fan 13 has a two-stage speed regulation function, and can rotate the metal rotary drum 5 at a speed of 200r/min at a low-speed gear wind speed and rotate the metal rotary drum 5 at a speed of 300r/min at a high-speed gear wind speed. A detachable plastic safety cover 1 is arranged at one end of a plastic shell 6, and can play a role in protecting a user from being in direct contact with a spinnable solution and a high-voltage electrostatic field. The circumference equipartition exhaust hole on the safety guard 1, gaseous can not improve the security because of unable discharge forms the whirl in safety guard 1, is favorable to fibrous regular collection. The material of the infusion tube 9 also requires an insulating material and has certain flexibility, and can be but is not limited to a glass tube.
The invention relates to a method for using a handheld melt electrostatic spinning preparation device, which refers to figures 1, 2 and 3. Firstly, vertically fixing a receiving plate 19 at a certain position, and connecting a grounding wire on the receiving plate 19 to metal such as an indoor metal water pipe and a radiator to keep the receiving plate 19 not to be in direct contact with a metal material or a water source; for the direct current power supply device, a working circuit is switched on by pressing the point-action switch 18 by hands, after the circuit becomes a path, the electric fan 13 starts to rotate, the miniature high-voltage static generator 16 starts to work, and high-voltage static electricity is connected to the outer ring of the bearing 7 through a lead, so that the whole metal rotary cylinder 5 is electrified; the airflow blown by the electric fan 13 can generate interaction force with the blades so as to enable the rotary drum to start rotating; when the rotating speed of the rotary cylinder is stabilized to a specified value, the device is aligned to the fixed receiving plate 19, the eccentric wheel 8 on the liquid conveying pipe 9 is rotated, the spinnable solution smoothly flows into the rotary cylinder from the liquid storage tank 10 through the liquid conveying pipe 9, and the spinnable solution is gradually distributed in the whole metal rotary cylinder 5 by blowing of wind and rotation of the rotary cylinder, so that the differential effect is achieved; since the metal rotary cylinder 5 is continuously rotated, the solution may flow onto the blades and finally onto the metal baffle 3; finally, because the metal rotary drum 5 and the metal baffle 3 on the metal rotary drum are both charged with high-voltage static electricity, an electric field is formed in the safety cover 1 together with the grounded receiving device, and under the dual actions of the electric field force and the air flow, the fibers are stretched and refined and are regularly collected on the receiving plate 19.
The invention relates to a use method of a handheld melt electrostatic spinning preparation device, and in another mode, the use method is shown in fig. 4, fig. 2 and fig. 3. Firstly, vertically fixing a receiving plate 19 at a certain position, and connecting a grounding wire on the receiving plate 19 to metal such as an indoor metal water pipe, a radiator and the like in order to keep the receiving plate 19 not to be in direct contact with a metal material or a water source; for the alternating current power supply device, the main difference from the direct current power supply device is that the micro high-voltage generator 16 is arranged externally, and the requirement on the appearance specification of the device is also relaxed; before use, the power line of the micro high-voltage generator 16 is connected to complete grounding; next, aligning the device to the fixed receiving plate 19, connecting a power line of the electric fan 13, starting the electric fan 13 to rotate, pressing a button for outputting high voltage by the miniature high-voltage generator 16 when the rotating speed of the rotating cylinder is stabilized to a specified value, and connecting high-voltage static electricity to the outer ring of the bearing 7 through a lead so as to electrify the whole metal rotating cylinder 5; the eccentric wheel 8 on the transfusion tube 9 is rotated, the spinnable solution smoothly flows into the rotating cylinder from the liquid storage tank 10 through the transfusion tube 9, and the spinnable solution is gradually distributed in the whole metal rotating cylinder 5 by the blowing of wind and the rotation of the rotating cylinder, so that the differential effect is achieved; as the metal rotary cylinder 5 rotates ceaselessly, the solution flows onto the blades and finally onto the metal baffle 3; finally, because the metal rotary drum 5 and the metal baffle 3 on the metal rotary drum are both charged with high-voltage static electricity, an electric field is formed in the safety cover 1 together with the grounded receiving device, and under the multiple actions of centrifugal force, electric field force and air flow, fibers are stretched and refined and are collected on the receiving plate 19.
Claims (9)
1. A hand-held micro-separation electrospinning device, comprising: the hair dryer mainly comprises a safety cover, an iron wire, a metal baffle, a metal interlayer, a metal rotary cylinder with blades inside, a plastic shell, a deep groove ball bearing, a manual eccentric wheel, a liquid conveying pipe, a liquid storage tank, a rotary table, a hexagon bolt, an electric fan, a grounding wire, a lithium battery, a miniature high-voltage electrostatic generator, a spring and a click switch, wherein the plastic shell is of an inverted L shape and is similar to a household hair dryer for drying hair, the safety cover, the metal rotary cylinder with blades inside and the deep groove ball bearing are sequentially installed at the outlet end of a right side wire of the horizontal section of the plastic shell, and the outer diameter of the deep groove ball bearing is fixed in a groove in the plastic shell; the fan blades are fixed in the rear end of the metal rotating cylinder with the fan blades inside, the inner diameter of the metal rotating cylinder with the fan blades inside is welded with a metal interlayer, a gap is reserved between the inner diameter of the metal rotating cylinder with the fan blades inside and the outer diameter of the metal interlayer, spinning liquid can fly out from the gap, a metal baffle plate is welded and fixed on the right side of the fan blade at a certain distance from the outlet by an iron wire, the spinning solution blown out along with the fan blade is blocked by the metal baffle plate and falls into a metal interlayer, the iron wire, the metal baffle plate and the like are welded in the appointed position of a metal rotating cylinder with the fan blade inside, the left end of the metal rotating cylinder with the fan blades inside is provided with a round hole, the right end of the metal rotating cylinder with the fan blades inside can be flush with the right end of the metal interlayer, the left end of the metal rotating cylinder with the fan blades inside is a certain distance away from the left end of the metal interlayer, and the axial length of the metal interlayer is slightly short, so that most of spinning solution can flow into a gap between the metal interlayer and the metal rotating cylinder; the metal baffle is fixed on the inner side of the metal interlayer by an iron wire and is coaxial with the metal rotary cylinder; slowly screwing a metal rotary cylinder with fan blades inside into an inner ring of the deep groove ball bearing, wherein symmetrical screwing-in is ensured in the process, no obvious deviation of the metal rotary cylinder in the axial direction is ensured, and the rotary cylinder is coaxial with the deep groove ball bearing; the lithium battery, the miniature high-voltage electrostatic generator, the electric fan and the liquid storage tank are fixedly arranged in a vertical hand-holding section of the L section of the plastic shell, and the shape of the electric fan is arc-shaped and is convenient for holding; connecting corresponding circuits to complete the connection of the internal circuits of the device, wherein the connection comprises welding a high-voltage output line to a certain point on the exposed outer ring of the deep groove ball bearing; the liquid storage tank is fixed at the upper part of the whole device through a groove in the plastic shell, and the liquid outlet is arranged at the bottom of the liquid storage tank and close to one side of the plastic shell; the infusion tube is connected with the liquid storage tank through the hot melt adhesive and then is clamped by the bulge on the plastic shell to be close to the inner wall, and the manual eccentric wheel also protrudes out of the shell; the end of the infusion tube is fixed by a high-foot bulge inside the shell and then is placed into the metal rotary cylinder.
2. The handheld micro-separation electrospinning device according to claim 1, wherein: the gap distance between the metal interlayer and the metal rotary drum is 0.5-1 cm.
3. The handheld micro-separation electrospinning device according to claim 1, wherein: the metal baffle is 1mm thick, the rotary cylinder is coaxial with the deep groove ball bearing, the axial deviation of the inner ring is controlled within 0.5mm, and the tail end of the infusion tube is placed into the rotary cylinder by 5 cm.
4. The handheld micro-separation electrospinning device according to claim 1, wherein: the static generator is placed outside the plastic shell and is powered by 220V alternating current.
5. The handheld micro-separation electrospinning device according to claim 1, wherein: the metal rotary drum rotates at the speed of 200r/min-300 r/min.
6. The handheld micro-separation electrospinning device according to claim 1, wherein: a notch with the depth of 3cm is formed in the lower end of a groove for fixing the deep groove ball bearing through the plastic shell, a high-voltage output line of the miniature high-voltage electrostatic generator is welded to an outer ring of the deep groove ball bearing through the notch, so that the metal rotary cylinder is integrally provided with high-voltage static electricity, the receiving plate is grounded, and an electric field is formed between the rotary cylinder and the receiving plate.
7. The handheld micro-separation electrospinning device according to claim 1, wherein: the plastic shell is provided with holes, and the distribution area of the holes is as large as the effective area of the fan blades of the electric fan.
8. A method of using a handheld micro-separation electrospinning device according to claim 1, wherein: firstly, vertically fixing a receiving plate at a certain position, keeping the receiving plate not to be in direct contact with a metal material or a water source, and connecting a grounding wire on the receiving plate to metal such as an indoor metal water pipe, a radiator and the like; the operating circuit is switched on by pressing the point-acting switch by hand, after the circuit becomes a path, the electric fan starts to rotate, the miniature high-voltage static generator starts to work, and high-voltage static is connected to the outer ring of the bearing through a lead, so that the whole metal rotating cylinder is electrified; the airflow blown out by the electric fan can generate interaction force with the blades so as to enable the rotary cylinder to start rotating; when the rotating speed of the rotating cylinder is stabilized to a specified value, the device is aligned to the fixed receiving plate, the eccentric wheel on the liquid conveying pipe is rotated, the spinnable solution flows into the rotating cylinder from the liquid storage tank through the liquid conveying pipe, and the spinnable solution is gradually distributed in the whole metal rotating cylinder by blowing of wind and rotation of the rotating cylinder to achieve the differential effect; the metal rotary cylinder continuously rotates, and because the metal rotary cylinder and the metal baffle plate on the metal rotary cylinder are both provided with high-voltage static electricity, an electric field is formed in the safety cover together with the grounded receiving device, fibers are stretched and refined under the multiple actions of centrifugal force, electric field force and air flow, and are regularly collected on the receiving plate.
9. The method according to claim 8, wherein the handheld micro-separation electrospinning device of claim 4 is used, and the method further comprises: for the alternating current power supply device, before the device is used, a power line of a high-voltage generator is connected, and grounding is completed; aligning the device to the fixed receiving plate, connecting a power line of an electric fan, starting the electric fan to rotate, pressing a button for outputting high voltage by a high-voltage generator when the rotating speed of the rotary cylinder is stabilized to a specified value, and connecting high-voltage static electricity to the outer ring of the bearing through a lead so as to electrify the whole metal rotary cylinder; the spinning solution smoothly flows into the rotating cylinder from the liquid storage tank through the liquid conveying pipe by rotating the eccentric wheel on the liquid conveying pipe, and is gradually distributed in the whole metal rotating cylinder by blowing of wind and rotation of the rotating cylinder, so that the differential effect is achieved.
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