CN211947309U - Portable electrostatic spinning machine - Google Patents
Portable electrostatic spinning machine Download PDFInfo
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- CN211947309U CN211947309U CN202020378310.8U CN202020378310U CN211947309U CN 211947309 U CN211947309 U CN 211947309U CN 202020378310 U CN202020378310 U CN 202020378310U CN 211947309 U CN211947309 U CN 211947309U
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Abstract
The utility model relates to a portable electrostatic spinning machine to its application example on preparing zirconia fibre is disclosed. The utility model discloses a portable electrostatic spinning machine has included voltage conversion equipment, electrostatic spinning device and temperature control device and transparent insulating casing. The voltage conversion device provides high and low voltage, the temperature control device controls the ambient temperature of spinning, and the electrostatic spinning device performs the spinning of the zirconia. Adopt the utility model discloses an electrostatic spinning machine carries out electrostatic spinning to zirconia and PVA mixed solution, obtains zirconia ceramic fiber. The utility model discloses the module such as voltage conversion equipment, temperature control device, electrostatic spinning device that uses has with low costs, efficient, the environmental protection is convenient, and the controllable advantage of temperature can control spinning voltage, temperature, velocity of flow, spinning distance, can spin polytype zirconia fibre.
Description
Technical Field
The utility model belongs to the technical field of electrostatic spinning is relevant, specific theory relates to a portable electrostatic spinning machine.
Background
The information disclosed in this background section is only for enhancement of understanding of the general background of the invention and is not necessarily to be taken as an acknowledgement or any form of suggestion that this information constitutes prior art that is already known to a person skilled in the art.
Electrospinning is a special fiber manufacturing process in which a polymer solution at the spinning needle changes from a spherical shape to a conical shape (i.e., a "taylor cone") under the action of an electrostatic field, and a fiber filament is obtained by extending from the tip of the cone. This way, polymer filaments of nanometer-scale diameter can be produced. The prepared nano fiber is uniform and continuous, and the diameter of the prepared fiber can be dozens of nanometers to several micrometers. The structure and application of the one-dimensional nanostructure material prepared by electrostatic spinning equipment have become the subject of wide attention of researchers in various countries. Up to now, nanofibers of nearly a hundred different polymers, various types of polymer/inorganic composite nanofibers, and inorganic nanofibers have been produced by electrospinning.
At present, one-dimensional materials with nanometer scale have prominent effects in the aspects of medicine, protection, reinforced composite materials and the like. Zirconia has the characteristics of high temperature resistance, good conductivity, corrosion resistance, difficult oxidation and the like, and is widely applied in many fields, zirconia ceramic fibers have the characteristics of good corrosion resistance, high temperature resistance, thermal property and photoelectric property, good chemical stability and good wear resistance, and are widely researched, and the mode for preparing the material fibers is also widely researched.
The main preparation method of the zirconia ceramic fiber comprises the following steps: mechanical spinning, co-mixing spinning, sol spinning, electrostatic spinning, etc. The electrostatic spinning method has the advantages of simplicity, high efficiency, low cost, proper spinning temperature environment, high spinning speed, convenience in collection and the like, and is widely concerned.
For example: research has disclosed a multi-needle electrostatic spinning device with uniform electric field distribution, including high voltage power supply, solution supply device, spinning device and receiving board; the solution supply device comprises a conveyor and a solution tank; the spinning device comprises a plurality of needles; the positive pole of the high-voltage power supply is connected with the needle head, the negative pole of the high-voltage power supply is connected with the receiving plate, and the receiving plate is positioned below the spinning nozzle; the auxiliary electrode is arranged in a mixing way with the needle head, and is a positive electrode or a grounding electrode connected with the positive electrode of a high-voltage power supply; when the auxiliary electrode is a positive electrode, the positive electrode is distributed on the periphery of the needle head; when the auxiliary electrode is grounded, the ground electrode is disposed in the middle region inside the needle. The utility model discloses a many syringe needles electrostatic spinning equipment has solved electrostatic interference and has caused partial syringe needle can not continuous spinning and the inhomogeneous problem of fibre membrane structure, and then improves nanofiber preparation efficiency and quality.
The research discloses a flow-controlled top-spinning melt electrostatic spinning machine, which comprises an electrostatic generator, a flow-controlled melt electrostatic spinning device and a reciprocating rotary receiving device. The flow controlled melt electrostatic spinning device mainly comprises a device base, a charging barrel, a plunger rod, a spinning nozzle disc, a charging barrel base plate, a heating element, a temperature sensor, a temperature controller, a guide rail frame, a propelling slide block, a screw rod shaft, a guide rail, a coupler and a motor, wherein the reciprocating rotary receiving device mainly comprises a motor, a driving belt pulley, a driven belt pulley, a belt, a bearing, a hollow shaft, a reciprocating rod, a reciprocating rail, a collecting plate, a motor frame, a collecting plate support, a device frame, a heightening column, a guide rail frame, a propelling slide block, a screw rod shaft, a guide rail, a coupler and a motor. The utility model discloses can realize that fuse-element electrostatic spinning's flow is controllable, upwards collect, prepare the even fibrous membrane of thickness.
However, the utility model people find: at present, the angle of a spray needle of multi-needle electrostatic spinning equipment is difficult to adjust, and the spinning requirements of different structures cannot be met.
Disclosure of Invention
In order to overcome the problems, the utility model provides a convenient electrostatic spinning machine reaches and controls electrostatic spinning's under the optimum temperature through its interior temperature control device and goes out the silk temperature, can make the spinning be in the state of low water yield, low humidity, makes the spinning firmly paste, be difficult for dropping, has improved electrostatic spinning and has gone out the silk quality greatly. The multi-needle nozzle needle is arranged on the electrostatic spinning machine, so that the spinning quantity and the yarn outlet efficiency are improved. In addition, the utility model discloses still provide the example that utilizes this device to carry out electrostatic spinning to zirconia.
In order to realize the technical purpose, the utility model discloses a technical scheme as follows:
a portable electrospinning machine comprising: voltage conversion equipment, electrostatic spinning device and temperature control device, voltage conversion equipment comprises low pressure DC converter and high voltage converter, low pressure DC converter links to each other with temperature control device and high voltage converter respectively, electrostatic spinning device is including pushing away handle, solution storage area, shower nozzle, porous insulating thin slice and spray needle, it sets gradually from the left to the right to push away handle, solution storage area, shower nozzle, porous insulating thin slice and spray needle, set up high-voltage coil in the shower nozzle, high-voltage coil links to each other with spray needle and high voltage converter respectively.
The beneficial effects of the utility model reside in that:
(1) the utility model discloses a temperature control device reaches and controls electrostatic spinning's play silk temperature under the optimum temperature in it, can make the spinning be in the state of low water yield, makes the spinning paste closely, has improved electrostatic spinning play silk quality greatly.
(2) The utility model discloses set up the spray needle of many syringe needles on electrostatic spinning machine, improved a silk speed, improved a silk quantity and efficiency.
(3) The utility model discloses an electrostatic spinning device push away partly setting of handle part and spinning solution reservoir in the insulating casing, greatly reduced the volume of device, can realize portablely. The arrangement of the transparent insulating shell improves the safety of the device, and the scales of the internal solution storage area and the residual amount of the solution can be seen.
(4) The shower nozzle designs into hemispherical for spun solution is more, and the spray needle sets up to a plurality of spray needles and encircles the centre of a circle distribution according to the same angle, makes a speed and a volume of silk of going out can be controlled according to spray needle quantity and distribution, and the spray needle can be through the spinning structure of the different structures of the acquisition that changes angle and centre of a circle apart from, thereby satisfies the demand to spinning product isostructure.
(5) The device of the utility model has the advantages of simple structure, with low costs, easily large-scale production.
Drawings
The accompanying drawings, which form a part of the specification, are included to provide a further understanding of the invention, and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the invention without unduly limiting the scope of the invention.
Fig. 1 is a schematic structural diagram of a portable electrostatic spinning machine according to embodiment 1 of the present invention;
fig. 2 is a schematic structural view of an electrospinning device according to embodiment 1 of the present invention;
fig. 3 is a schematic structural view of a temperature control device according to embodiment 1 of the present invention;
fig. 4 is a schematic structural view of a porous insulating sheet according to example 1 of the present invention;
wherein: 1. the device comprises a push handle, 2, a solution storage area, 3, a spray head, 4, a spray needle, 5, a temperature control device, 6, an LED display, 7, a control module, 8, a temperature rise button, 9, a temperature drop button, 10, a determination button, 11, a switch button, 12, a temperature sensor, 13, a heating resistor, 14, a direct current converter, 15, a high voltage converter, 16 and a porous insulating sheet.
Detailed Description
It should be noted that the following detailed description is exemplary and is intended to provide further explanation of the invention. Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs.
It is noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of example embodiments in accordance with the invention. As used herein, the singular forms "a", "an" and "the" are intended to include the plural forms as well, and it should be understood that when the terms "comprises" and/or "comprising" are used in this specification, they specify the presence of stated features, steps, operations, devices, components, and/or combinations thereof, unless the context clearly indicates otherwise.
The examples do not specify particular techniques or conditions, and are performed according to the techniques or conditions described in the literature in the art or according to the product specifications. The reagents or instruments used are not indicated by the manufacturer, and are all conventional products commercially available.
As introduced by the background technology, the method aims at the problem that the angle of a spray needle of the existing multi-needle electrostatic spinning equipment is difficult to adjust and cannot meet the spinning requirements of different structures. Therefore, the utility model provides a convenient electrostatic spinning machine, include:
(1) the voltage conversion device comprises a low-voltage direct-current converter and a high-voltage converter. The low-voltage direct-current converter is connected with the high-voltage converter and provides a voltage-stabilizing direct-current power supply for the temperature control device. The voltage conversion device is connected with 220V alternating current mains supply, the output of the low-voltage direct current converter is low-voltage direct current which can be reduced to about 15V, and power is supplied to a temperature control device in the device. The high-voltage converter is used as a high-voltage output end of the voltage conversion device, low-voltage direct current output by the low-voltage direct current converter is boosted to be high-voltage electricity, and the high-voltage output end of the high-voltage converter is connected with the electrostatic spinning device to provide the high-voltage electricity for the electrostatic spinning device. The conversion of the voltage is realized by a high-voltage packet in the high-voltage converter, and the conversion multiple of the voltage can be realized by changing the model of the high-voltage packet.
(2) The temperature control device comprises an LED display, a heating resistor, a temperature sensor and a control module. The temperature control device is arranged below the electrostatic spinning device, the temperature sensor detects the temperature of the spray head, the detected temperature value is displayed on the LED display, and the working state of the heating resistor can be controlled through the control button according to the required temperature. The temperature control device is arranged around the electrostatic spinning nozzle to provide the ambient temperature required by electrostatic spinning.
(3) The electrostatic spinning device comprises a push handle, a solution storage area, a spray head, a porous insulating sheet and a spray needle, wherein a plurality of circles of high-voltage coils are wound in the spray head, and the high-voltage coils are connected with the spray needle and the high-voltage output end of a voltage conversion device at one side. The push handle is hermetically inserted into the solution storage area in the manner of a medical syringe and is movable. One end of the spray head is connected with the outlet of the solution storage area, and the other end of the spray head is attached with a plurality of spray needles. The interior of the hemispherical head is divided into two parts by a porous insulating sheet. One side connected with the outlet of the solution storage area is used for storing the solution entering the spray head, the solution is isolated by the porous insulating sheet, the other side of the spray head is designed into porous insulating rubber, the spray needle can be inserted into the hole and penetrates through the hole of the porous insulating sheet to contact the inside of the solution, and after the push rod is pushed, the solution is sprayed out through the spray needle. Because the nozzle is designed into a hemisphere shape and is provided with a plurality of holes into which the nozzle can be inserted, the number, the distribution distance and the angle of the spray needles can be changed, and multi-type spinning is realized.
(4) When electrostatic spinning is carried out, the push rod is pushed by the push handle, so that spinning solution enters the spray head from the solution storage area and is sprayed out through the spray needles arranged on the spray head. The spinning from the nozzle is collected on a collecting plate. The device is characterized in that a pushing handle of the electrostatic spinning device is pushed manually, an electrostatic spinning solution is slowly pressed into a spray head by a pushing rod, under the action of a high-voltage electrostatic field of a high-voltage coil in the spray head, a polymer solution at an electrostatic spinning solution spinning needle head is changed into a conical shape from a spherical shape, a fiber filament is obtained by extending from the tip of the conical shape, and finally a spinning fiber is generated.
In some embodiments, the spray head of the electrospinning apparatus is hemispherical. The utility model discloses a hemisphere shower nozzle is inside to be divided into two parts by porous insulating thin slice. One side connected with the outlet of the solution storage area is used for storing the solution entering the spray head, the solution is isolated by the porous insulating sheet, the other side of the spray head is designed into porous insulating rubber, and the spray needle can be inserted into the hole and penetrates through the hole of the porous insulating sheet to contact the inside of the solution. The advantages are that: because the spray head is designed into a hemisphere shape and is provided with a plurality of holes which are distributed at a plurality of angles and distances and can be inserted, the number, the distribution distance and the angles of the spray needles can be conveniently changed, and the multi-type spinning is realized.
In some embodiments, the insulating sheet is a rigid PVC plastic sheet having an area of 3.8 square centimeters, the sheet having a total of nine openings, each opening having a size of 0.08 square centimeters and a density of 0.42 openings per square centimeter.
In some embodiments, the control module in step (2) of the present invention includes a temperature-increasing button, a temperature-decreasing button, a switch button, and a determination button, which may be respectively labeled as "+", "-", "switch", and "determination" on the corresponding buttons. The temperature rise button, the temperature fall button, the switch button and the determination button are respectively connected with the temperature controller. The temperature-raising button is used for raising a set temperature value, the temperature-lowering button is used for lowering the set temperature value, the switch button controls whether the temperature control device is started to work, and the determining button plays a role in determining whether to raise or lower the temperature. After the temperature is set, the heating resistor is raised to the set temperature to heat the needle of the electrospinning device and the ambient temperature in the vicinity thereof. And an LED display of the temperature control device is connected with the temperature controller. The LED display can be used for displaying the temperature value of the temperature sensor and displaying the change of the set temperature. Wherein, the circuit connection mode is set according to a conventional method.
In some embodiments, the control of the operating state of the heating resistor by the control button in step (2) of the present invention may be implemented by connecting a relay. The switch of relay connects heating resistor, and the coil connection control button of relay is through controlling whether heating resistor heats of relay control.
In some embodiments, the shower nozzle designs into hemispherical in step (3) for spun solution is more, and the spray needle sets up to a plurality of spray needles and distributes according to the same angle ring centre of a circle, makes silk speed and silk volume of going out can control with distributing according to spray needle quantity, and the spray needle can be through the spinning structure of the acquisition isostructure who changes angle and centre of a circle distance, thereby satisfies the demand to spinning product isostructure. In order to further reduce the volume of the electrostatic spinning device, the solution storage area is arranged inside the insulating shell, the push handle is designed to be connected with two push rods, the length is shortened, the volume is reduced, and the solution is more conveniently pushed.
The solution of the present invention is described below by way of specific examples. The model of the low-voltage direct-current converter is HW-316E, the high-voltage converter comprises a high-voltage bag and a ZVS Tesla coil, the model of the LED display is a 0.36-inch three-digit nixie tube, the model of the LED display is 3361BS, the model of the heating resistor is a 12V40W single-head heating rod, the model of the temperature sensor is an NTC thermistor, and the model of the relay is SRA-05 VDC-AL. The LED display, the heating resistor, the temperature sensor, the control module and the relay are all part of a W1209 waterproof digital display temperature controller.
The single-head heating rod as the heating resistor is not inserted into the solution of the hemispherical spray head, but is close to the spray head to heat the external environment of the spray head, and the heated external environment can enable the liquid to reach the conditions of proper temperature and low humidity.
Example 1:
this embodiment provides and adopts the utility model discloses a portable electrostatic spinning machine, include: voltage conversion equipment, electrostatic spinning device and temperature control device, voltage conversion equipment comprises low pressure direct current converter 14 and high voltage converter 13, low pressure direct current converter 14 links to each other with temperature control device 5 and high voltage converter 15 respectively, electrostatic spinning device is including pushing away handle 1, solution storage area 2, shower nozzle 3, porous insulating thin slice 16 and spray needle 4, it sets gradually from left to right to push away handle 1, solution storage area 2, shower nozzle 3, porous insulating thin slice 16 and spray needle 4, set up high-voltage coil in the shower nozzle 3, high-voltage coil links to each other with spray needle 4 and high voltage converter 15 respectively.
The nozzle 3 of the electrostatic spinning device is hemispherical. The hemispherical head 3 of the present invention is divided into two parts by the porous insulating sheet 16. One side connected with the outlet of the solution storage area 2 stores the solution entering the spray head 3, the solution is isolated by a porous insulating sheet 16, the other side of the spray head 3 is designed into porous insulating rubber, and the spray needle 4 can be inserted into the hole and penetrates through the hole of the sheet to contact the inside of the solution.
The porous insulating sheet 16 on the spray head 3 is a hard PVC plastic sheet, the area of the porous insulating sheet is 3.8 square centimeters, nine openings are formed in the sheet, the size of each opening is 0.08 square centimeter, and the density of the openings is 0.42 per square centimeter.
The spray head 3 is provided with a plurality of spray needles 4 which are distributed around the center of the sphere according to the same angle.
Because the spray head 3 is designed to be hemispherical and is provided with a plurality of holes which are distributed at a plurality of angles and distances and can be inserted, the number, the distribution distance and the angles of the spray needles 4 can be conveniently changed, and the multi-type spinning is realized.
The spray head 3 is provided with a plurality of spray needles 4 which are distributed around the center of the sphere according to the same angle.
The temperature control device 5 includes: display device 6, heating resistor 13, temperature sensor 12 and control device 7.
The temperature sensor 12 and the heating resistor 13 are arranged at a filament outlet of the electrostatic spinning device.
The control device comprises a temperature-rising button 8, a temperature-falling button 9, a switch button 11 and a determination button 10.
The voltage conversion device, the electrostatic spinning device and the temperature control device 5 are all arranged in the insulating transparent shell.
The method for preparing the zirconia ceramic fiber by the electrostatic spinning method comprises the following steps:
(1) as shown in fig. 2, the electrospinning device includes a push handle 1, a solution storage area 2, a nozzle 3, a porous insulating sheet 16, and a needle 4, wherein a plurality of high voltage coils are wound in the nozzle, and the high voltage coils are connected to the needle 4 and the high voltage output end of the voltage conversion device. The push handle 1 is hermetically inserted into the solution storage region 2 in the manner of a medical syringe and is movable. One end of the spray head 3 is connected with the outlet of the solution storage area 2, and the other end of the spray head 3 is attached with a plurality of spray needles 4. The spray head 3 is designed to be hemispherical, so that the sprayed solution is more, the spray needles 4 are arranged to be distributed around the circle center according to the same angle by the plurality of spray needles 4, the yarn outlet speed and the yarn outlet amount can be controlled according to the quantity and the distribution of the spray needles 4, the spray needles 4 can obtain spinning structures with different structures by changing the distribution angles of the plurality of spray needles 4 and the distance between the spray needles and the circle center, and the requirements for different structures of spinning products are met. In order to further reduce the volume of the electrostatic spinning device, most of the solution storage area 2 is arranged inside the insulating shell, and the push handle 1 is designed to be connected with two push rods, so that the solution is more conveniently pushed, the length is shortened, and the volume is reduced.
(2) As shown in fig. 3, the temperature control device 5 includes an LED display 6, a heating resistor 13, a temperature sensor 12, and a control module 7. The temperature control device 5 is arranged below the electrostatic spinning device, the temperature sensor 12 detects the temperature of the spray head 3, the detected temperature value is displayed on the LED display 6, and the working state of the heating resistor can be controlled through the control module 7 according to the required temperature. The temperature control device 5 is arranged around the electrostatic spinning nozzle 3 to provide the environmental temperature required by electrostatic spinning, so that the sprayed filaments are in a low-humidity state, the sprayed filaments are tightly adhered, and the filament discharging quality is improved.
(3) The control module may include a warm up button 8, a cool down button 9, a switch button 10, and a ok button 11, which may be labeled "+", "-", "switch," and "ok," respectively, on the corresponding buttons. The temperature increasing button 8 is used for increasing the set temperature value, the temperature decreasing button 9 is used for decreasing the set temperature value, the switch button 10 controls whether the temperature control device is started to work, and the determining button 11 plays a role in determining whether to increase or decrease the temperature. The LED display 6 of the temperature control device 5 may be used to display the temperature value of the temperature sensor 12 and may display a change in the set temperature.
(4) The voltage conversion means comprise a low voltage dc converter 14 and a high voltage converter 15. The low-voltage DC converter 14 is connected with the high-voltage DC converter 15 and provides a stabilized DC power supply for the temperature control device 5. The voltage conversion device is connected with 220V alternating current mains supply, the output of the low-voltage direct current converter 14 is low-voltage direct current which can be reduced to 15.5V, power is supplied to a temperature control device 5 in the device, and a proper temperature environment is provided for zirconia spinning. The high-voltage converter 15 raises the low-voltage direct current output by the low-voltage direct current converter 14 to 800 times of the original voltage, and the high-voltage output end of the high-voltage converter 15 is connected with the electrostatic spinning device to provide 12.5kV high-voltage electricity for the electrostatic spinning device.
(5) For electrospinning, the resulting 8 mole% stabilized zirconia colloid and 10% PVA solution were first spun in a 1: 1.25 to form a suspension. And stirring, standing, precipitating and the like are carried out on the suspension to obtain the PVA and zirconia mixed solution required by preparation. The viscosity of the electrospinning solution obtained in this process was 1400 mPas.
(6) The electrospinning solution was fed into the solution storage section 2 of the electrospinning apparatus. The spinning environment temperature is changed by the temperature control device 5, so that the spinning environment temperature is about 45 ℃. The method is realized by the following steps: firstly, a switch button 11 is pressed, a control module 7 of the temperature control device 5 is started, a temperature rising button 8 and a temperature lowering button 9 are pressed, numbers on an LED display screen 6 of the temperature control device 5 are added or subtracted, the temperature is adjusted to 45 ℃, and then a confirmation button 10 is pressed for confirmation.
(7) When electrostatic spinning is carried out by the electrostatic spinning device, the push rod is pushed by the push handle 1, so that spinning solution enters the spray head 3 from the solution storage area 2 and is sprayed out by the spray needle 4 which is arranged on the spray head 3 and inserted into the porous insulating sheet 16. The spun yarn from the needle 4 is collected on a collecting plate. The method is realized by the following steps: the handle 1 that pushes away of manual propulsion electrostatic spinning device, electrostatic spinning solution is slowly impressed into shower nozzle 3 by the push rod, and electrostatic spinning solution becomes the toper by the sphere under the 12.5kV high voltage electricity's of the high-voltage coil in the shower nozzle 3 effect to obtain the fibre filament from the extension of conical point, finally generate the spinning fibre, collect on the collecting plate, the spray needle 4 is 7.0cm with collecting plate receiving distance length. And obtaining a zirconia fiber precursor.
(8) And removing redundant colloid from the zirconia fiber precursor at the degumming temperature of 600 ℃, and calcining in a furnace at the calcining temperature of 800 ℃ to obtain the stable zirconia ceramic fiber. The SEM picture of the obtained zirconia ceramic fiber is shown in FIG. 4, and it can be seen that the zirconia ceramic fiber has good uniformity in thickness and distribution, and the diameter is about 300-400 nm.
Example 2:
this embodiment provides and adopts the utility model discloses a portable electrostatic spinning machine, include: voltage conversion equipment, electrostatic spinning device and temperature control device, voltage conversion equipment comprises low pressure direct current converter 14 and high voltage converter 13, low pressure direct current converter 14 links to each other with temperature control device 5 and high voltage converter 15 respectively, electrostatic spinning device is including pushing away handle 1, solution storage area 2, shower nozzle 3, porous insulating thin slice 16 and spray needle 4, it sets gradually from left to right to push away handle 1, solution storage area 2, shower nozzle 3, porous insulating thin slice 16 and spray needle 4, set up high-voltage coil in the shower nozzle 3, high-voltage coil links to each other with spray needle 4 and high voltage converter 15 respectively.
The nozzle 3 of the electrostatic spinning device is hemispherical. The hemispherical head 3 of the present invention is divided into two parts by the porous insulating sheet 16. One side connected with the outlet of the solution storage area 2 stores the solution entering the spray head 3, the solution is isolated by a porous insulating sheet 16, the other side of the spray head 3 is designed into porous insulating rubber, and the spray needle 4 can be inserted into the hole and penetrates through the hole of the sheet to contact the inside of the solution.
The porous insulating sheet 16 on the spray head 3 is a hard PVC plastic sheet, the area of the porous insulating sheet is 3.8 square centimeters, nine openings are formed in the sheet, the size of each opening is 0.08 square centimeter, and the density of the openings is 0.42 per square centimeter.
The spray head 3 is provided with a plurality of spray needles 4 which are distributed around the center of the sphere according to the same angle.
Because the spray head 3 is designed to be hemispherical and is provided with a plurality of holes which are distributed at a plurality of angles and distances and can be inserted, the number, the distribution distance and the angles of the spray needles 4 can be conveniently changed, and the multi-type spinning is realized.
The temperature control device 5 includes: display device 6, heating resistor 13, temperature sensor 12 and control device 7.
Example 3:
this embodiment provides and adopts the utility model discloses a portable electrostatic spinning machine, include: voltage conversion equipment, electrostatic spinning device and temperature control device, voltage conversion equipment comprises low pressure direct current converter 14 and high voltage converter 13, low pressure direct current converter 14 links to each other with temperature control device 5 and high voltage converter 15 respectively, electrostatic spinning device is including pushing away handle 1, solution storage area 2, shower nozzle 3, porous insulating thin slice 16 and spray needle 4, it sets gradually from left to right to push away handle 1, solution storage area 2, shower nozzle 3, porous insulating thin slice 16 and spray needle 4, set up high-voltage coil in the shower nozzle 3, high-voltage coil links to each other with spray needle 4 and high voltage converter 15 respectively.
The nozzle 3 of the electrostatic spinning device is hemispherical. The hemispherical head 3 of the present invention is divided into two parts by the porous insulating sheet 16. One side connected with the outlet of the solution storage area 2 stores the solution entering the spray head 3, the solution is isolated by a porous insulating sheet 16, the other side of the spray head 3 is designed into porous insulating rubber, and the spray needle 4 can be inserted into the hole and penetrates through the hole of the sheet to contact the inside of the solution.
The porous insulating sheet 16 on the spray head 3 is a hard PVC plastic sheet, the area of the porous insulating sheet is 3.8 square centimeters, nine openings are formed in the sheet, the size of each opening is 0.08 square centimeter, and the density of the openings is 0.42 per square centimeter.
The spray head 3 is provided with a plurality of spray needles 4 which are distributed around the center of the sphere according to the same angle.
Because the spray head 3 is designed to be hemispherical and is provided with a plurality of holes which are distributed at a plurality of angles and distances and can be inserted, the number, the distribution distance and the angles of the spray needles 4 can be conveniently changed, and the multi-type spinning is realized.
The temperature sensor 12 and the heating resistor 13 are arranged at a filament outlet of the electrostatic spinning device.
Example 4:
this embodiment provides and adopts the utility model discloses a portable electrostatic spinning machine, include: voltage conversion equipment, electrostatic spinning device and temperature control device, voltage conversion equipment comprises low pressure direct current converter 14 and high voltage converter 13, low pressure direct current converter 14 links to each other with temperature control device 5 and high voltage converter 15 respectively, electrostatic spinning device is including pushing away handle 1, solution storage area 2, shower nozzle 3, porous insulating thin slice 16 and spray needle 4, it sets gradually from left to right to push away handle 1, solution storage area 2, shower nozzle 3, porous insulating thin slice 16 and spray needle 4, set up high-voltage coil in the shower nozzle 3, high-voltage coil links to each other with spray needle 4 and high voltage converter 15 respectively.
The nozzle 3 of the electrostatic spinning device is hemispherical. The hemispherical head 3 of the present invention is divided into two parts by the porous insulating sheet 16. One side connected with the outlet of the solution storage area 2 stores the solution entering the spray head 3, the solution is isolated by a porous insulating sheet 16, the other side of the spray head 3 is designed into porous insulating rubber, and the spray needle 4 can be inserted into the hole and penetrates through the hole of the sheet to contact the inside of the solution.
The porous insulating sheet 16 on the spray head 3 is a hard PVC plastic sheet, the area of the porous insulating sheet is 3.8 square centimeters, nine openings are formed in the sheet, the size of each opening is 0.08 square centimeter, and the density of the openings is 0.42 per square centimeter.
The spray head 3 is provided with a plurality of spray needles 4 which are distributed around the center of the sphere according to the same angle.
Because the spray head 3 is designed to be hemispherical and is provided with a plurality of holes which are distributed at a plurality of angles and distances and can be inserted, the number, the distribution distance and the angles of the spray needles 4 can be conveniently changed, and the multi-type spinning is realized.
The control device comprises a temperature-rising button 8, a temperature-falling button 9, a switch button 11 and a determination button 10.
Example 5:
this embodiment provides and adopts the utility model discloses a portable electrostatic spinning machine, include: voltage conversion equipment, electrostatic spinning device and temperature control device, voltage conversion equipment comprises low pressure direct current converter 14 and high voltage converter 13, low pressure direct current converter 14 links to each other with temperature control device 5 and high voltage converter 15 respectively, electrostatic spinning device is including pushing away handle 1, solution storage area 2, shower nozzle 3, porous insulating thin slice 16 and spray needle 4, it sets gradually from left to right to push away handle 1, solution storage area 2, shower nozzle 3, porous insulating thin slice 16 and spray needle 4, set up high-voltage coil in the shower nozzle 3, high-voltage coil links to each other with spray needle 4 and high voltage converter 15 respectively.
The nozzle 3 of the electrostatic spinning device is hemispherical. The hemispherical head 3 of the present invention is divided into two parts by the porous insulating sheet 16. One side connected with the outlet of the solution storage area 2 stores the solution entering the spray head 3, the solution is isolated by a porous insulating sheet 16, the other side of the spray head 3 is designed into porous insulating rubber, and the spray needle 4 can be inserted into the hole and penetrates through the hole of the sheet to contact the inside of the solution.
The porous insulating sheet 16 on the spray head 3 is a hard PVC plastic sheet, the area of the porous insulating sheet is 3.8 square centimeters, nine openings are formed in the sheet, the size of each opening is 0.08 square centimeter, and the density of the openings is 0.42 per square centimeter.
The spray head 3 is provided with a plurality of spray needles 4 which are distributed around the center of the sphere according to the same angle.
Because the spray head 3 is designed to be hemispherical and is provided with a plurality of holes which are distributed at a plurality of angles and distances and can be inserted, the number, the distribution distance and the angles of the spray needles 4 can be conveniently changed, and the multi-type spinning is realized.
The voltage conversion device, the electrostatic spinning device and the temperature control device 5 are all arranged in the insulating transparent shell.
It should be noted that the above-mentioned embodiments are only preferred embodiments of the present invention, and the present invention is not limited thereto, and although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that the technical solutions described in the foregoing embodiments can be modified or partially replaced by equivalent solutions. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention. Although the present invention has been described with reference to the accompanying drawings, it is not intended to limit the scope of the present invention, and those skilled in the art should understand that various modifications or variations that can be made by those skilled in the art without inventive work are still within the scope of the present invention.
Claims (10)
1. A portable electrospinning machine, comprising: voltage conversion equipment, electrostatic spinning device and temperature control device, voltage conversion equipment comprises low pressure DC converter and high voltage converter, low pressure DC converter links to each other with temperature control device and high voltage converter respectively, electrostatic spinning device is including pushing away handle, solution storage area, shower nozzle, porous insulating thin slice and spray needle, it sets gradually from the left to the right to push away handle, solution storage area, shower nozzle, porous insulating thin slice and spray needle, set up high-voltage coil in the shower nozzle, high-voltage coil links to each other with spray needle and high voltage converter respectively.
2. The electrospinning machine of claim 1, wherein the nozzle of the electrospinning apparatus is hemispherical.
3. The electrospinning machine of claim 1, wherein the porous insulating sheet of the electrospinning device is a rigid PVC plastic sheet having an area of 3.8 to 3.9 square centimeters, and the sheet has a total of nine openings, each opening having a size of 0.08 to 0.09 square centimeters, and a density of openings of 0.42 to 0.43 per square centimeter.
4. The electrospinning machine of claim 2, wherein the nozzle is provided with a plurality of needles arranged at the same angle around the center of the sphere.
5. The electrospinning machine of claim 1, wherein the temperature control device comprises: display device, heating resistor, temperature sensor and controlling means.
6. The electrospinning machine of claim 5, wherein the temperature sensor and the heating resistor are disposed at a filament outlet of the electrospinning device.
7. The electrospinning machine of claim 1, wherein the control device comprises a warm-up button, a cool-down button, an on-off button, and a ok button.
8. The electrospinning machine of claim 1, wherein the voltage converting device, the electrospinning device, and the temperature control device are all disposed within an insulating transparent housing.
9. The electrospinning machine of claim 1, wherein the voltage converting device comprises a low voltage dc converter and a high voltage dc converter connected to each other.
10. The electrospinning machine of claim 1, wherein the push handle is formed by connecting two push rods.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202020378310.8U CN211947309U (en) | 2020-03-23 | 2020-03-23 | Portable electrostatic spinning machine |
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| CN202020378310.8U CN211947309U (en) | 2020-03-23 | 2020-03-23 | Portable electrostatic spinning machine |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117166071A (en) * | 2023-11-03 | 2023-12-05 | 上海志纬新材料科技有限公司 | PLA monofilament production process |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117166071A (en) * | 2023-11-03 | 2023-12-05 | 上海志纬新材料科技有限公司 | PLA monofilament production process |
| CN117166071B (en) * | 2023-11-03 | 2024-01-23 | 上海志纬新材料科技有限公司 | PLA monofilament production process |
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