CN110952154A - Nanofiber spinning device - Google Patents
Nanofiber spinning device Download PDFInfo
- Publication number
- CN110952154A CN110952154A CN201911393701.5A CN201911393701A CN110952154A CN 110952154 A CN110952154 A CN 110952154A CN 201911393701 A CN201911393701 A CN 201911393701A CN 110952154 A CN110952154 A CN 110952154A
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- China
- Prior art keywords
- material containing
- rotor
- containing rotor
- collecting device
- nanofiber
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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
- D01D5/18—Formation of filaments, threads, or the like by means of rotating spinnerets
-
- 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
- D01D1/00—Treatment of filament-forming or like material
- D01D1/04—Melting filament-forming substances
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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
- D01D11/00—Other features of manufacture
-
- 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
- D01D13/00—Complete machines for producing artificial threads
- D01D13/02—Elements of machines in combination
-
- 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
- D01D7/00—Collecting the newly-spun products
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Textile Engineering (AREA)
- Spinning Methods And Devices For Manufacturing Artificial Fibers (AREA)
Abstract
A nanofiber spinning device comprises a material containing rotor, a rotating shaft, an upper heater, a lower heater and a collecting device, wherein a polymer is arranged in a material containing cavity in the material containing rotor, a nozzle communicated with the material containing cavity is formed in the side wall of the material containing rotor, the upper heater and the lower heater are respectively arranged above and below the material containing rotor, the bottom of the material containing rotor is connected with the top end of the rotating shaft, the collecting device is arranged around the material containing rotor and the heater, a material taking cavity is formed between the collecting device and an outer partition wall in a clamped mode, and the inner cavity of the nozzle is of a cone frustum structure. The design not only does not need to apply a high-voltage electric field, is not restricted by conductivity, has higher production efficiency, but also has better collection effect, higher wire taking efficiency and wider application range.
Description
Technical Field
The invention relates to nanofiber spinning equipment, in particular to a nanofiber spinning device which is particularly suitable for avoiding the defects of high-voltage electric field and conductivity constraint and improving the production efficiency.
Background
The nano fiber is superfine fiber with the diameter of tens of nanometers to hundreds of nanometers, and has the unique advantages that other fibers cannot have, such as very large specific surface area, superfine porosity, good mechanical properties and the like. In recent years, nanofibers have been widely used in the fields of textile materials, tissue engineering scaffolds, filter media, nanosensors, composite materials, and the like.
The preparation of the nano-fiber attracts the attention of experts and scholars at home and abroad. Up to now, there are many methods for preparing nanofibers, such as drawing, microphase separation, template synthesis, self-assembly, electrospinning, etc., among which the electrospinning method is widely used with advantages of simple operation, wide application range, relatively high production efficiency, etc. However, electrospinning also has the following inherent drawbacks: firstly, a high-voltage electric field needs to be applied in the preparation process, the cost is high, and extra attention needs to be paid to safety problems; secondly, the production efficiency is low; again, the solution requires a proportion of solvent to make the solution conductive, which can lead to contamination.
The information disclosed in this background section is only for enhancement of understanding of the general background of the patent application and should not be taken as an acknowledgement or any form of suggestion that this information forms the prior art already known to a person skilled in the art.
Disclosure of Invention
The invention aims to overcome the defects and problems of the prior art that a high-voltage electric field needs to be applied and the conductivity is restricted, and provides a nanofiber spinning device which does not need to apply the high-voltage electric field and is not restricted by the conductivity.
In order to achieve the above purpose, the technical solution of the invention is as follows: a nanofiber spinning device comprises a material containing rotor, a rotating shaft and a collecting device, wherein the material containing rotor is communicated with a nozzle, a polymer is contained in the material containing rotor, the bottom of the material containing rotor is connected with the rotating shaft, and the collecting device is arranged around the material containing rotor;
the material containing rotor is internally provided with a material containing cavity, a polymer is arranged in the material containing cavity, the side wall of the material containing rotor is provided with a nozzle communicated with the material containing cavity, the upper part and the lower part of the material containing rotor are respectively provided with an upper heater and a lower heater, the bottom of the material containing rotor is connected with the top end of a rotating shaft, the bottom end of the rotating shaft penetrates through a base and then is connected with a motor, the base is provided with an outer isolation wall and a collecting device, a material taking cavity is formed between the outer isolation wall and the collecting device, and the material containing rotor, the upper heater, the lower heater and the joint of the material containing rotor and the rotating shaft are all positioned in the collecting device; a temperature sensing bin is arranged in the base, the outer wall of the temperature sensing bin is positioned in the collecting device, a temperature measuring sensor is arranged in the temperature sensing bin, the temperature measuring sensor, the signal emitter and the power supply are positioned in the same circuit loop, and the signal emitter is in signal connection with the main control room;
the temperature sensor includes metal casing, the input power cord, output power cord and sheetlike temperature sensing piece, the one end of input power cord is connected with signal transmitter, the other end of input power cord extends to metal casing's inside behind passing metal casing's the right wall, output power cord's one end is connected with the power, output power cord's the other end extends to directly over the input power cord other end behind passing metal casing's the left wall, metal casing's the top of the left wall is connected with the one end of temperature sensing piece, the other end of temperature sensing piece extends to in the metal casing directly over output power cord, metal casing's the top of the right wall is connected with the one end of separation blade down behind metal casing's top cap, the other end of separation blade is located directly over the temperature sensing piece down.
The temperature sensing piece comprises a connecting part, a transition part and a front edge part, one end of the connecting part is connected with the metal shell, the other end of the connecting part is connected with the front edge part after passing through the transition part, and the width of the transition part is smaller than that of the connecting part and the front edge part.
The size of an included angle between the lower baffle plate and the temperature sensing piece is 35-75 degrees.
The nozzle comprises an outer opening, a nozzle inner cavity and an inner opening which are connected in sequence, the nozzle inner cavity is of a truncated cone structure which is narrow outside and wide inside, the diameter of the outer opening is smaller than that of the inner opening, and the outer space of the nozzle is communicated with the material containing cavity after passing through the outer opening, the nozzle inner cavity and the inner opening in sequence.
The inner openings are communicated with the material containing cavity through inner flaring holes, and the diameter of the inner flaring holes is larger than that of the inner openings.
The material containing rotor is characterized in that a top groove and a bottom groove are respectively formed in the top and the bottom of the material containing rotor, the bottom end of an upper heater is arranged in the top groove, the top end of the upper heater extends to the position right above the material containing rotor, the top end of a lower heater is arranged in the bottom groove, and the bottom end of the lower heater extends to the position right below the material containing rotor.
The lower heater is sleeved on the outer wall of the rotating shaft, and the joint of the rotating shaft and the material containing rotor is higher than the top end of the lower heater.
The collecting device is of a tubular structure with openings at two ends, the side wall of the collecting device comprises an upper inner arc edge, a middle vertical edge and a lower inner arc edge, the upper inner arc edge is connected with the top surface of the base after sequentially passing through the middle vertical edge and the lower inner arc edge, and the upper inner arc edge and the lower inner arc edge are both of an inner-turning structure.
Compared with the prior art, the invention has the beneficial effects that:
1. the invention relates to a nano-fiber spinning device, wherein a polymer is arranged in a material containing cavity in a material containing rotor, a nozzle communicated with the material containing cavity is arranged on the side wall of the material containing rotor, an upper heater and a lower heater are respectively arranged above and below the material containing rotor, the bottom of the material containing rotor is connected with the top end of a rotating shaft, when in use, the upper heater and the lower heater heat the polymer in the material containing cavity to enable the polymer to be in a molten state to obtain molten liquid, the molten liquid has certain surface tension and molecular entanglement is in a reasonable range, simultaneously, the rotating shaft drives the material containing rotor to do high-speed rotary motion, the molten liquid of the polymer forms a Taylor cone at the nozzle, when the centrifugal force is greater than the viscous elasticity and the surface tension, the molten liquid is stretched to form nano-fibers and is shot on a collecting device to facilitate collection, in addition, the distance between the nozzle and the collecting device can be adjusted to obtain nano-fibers in different forms, the nozzle geometry, force conditions and collection device can also be designed to determine the form of the collected nanofibers to achieve nano-spinning. Therefore, the invention does not need to apply high-voltage electric field, is not restricted by conductivity, has higher production efficiency,
2. in the nanofiber spinning device, the collecting device is of a cylindrical structure with openings at two ends, the side wall of the collecting device comprises an upper inner arc edge, a middle vertical edge and a lower inner arc edge which are sequentially connected from top to bottom, when the nanofiber spinning device is used, the nanofiber is sprayed onto the middle vertical edge by the material containing rotor to be collected, and meanwhile, the upper inner arc edge and the lower inner arc edge of the inner turning structure can prevent the nanofiber from being sprayed out of the collecting device, so that the collecting efficiency is reduced. Therefore, the invention not only has higher production efficiency, but also has better collection effect.
3. The invention relates to a nanofiber spinning device, wherein a temperature sensing bin is arranged in a base, the outer wall of the temperature sensing bin is positioned in a collecting device, a temperature measuring sensor is arranged in the temperature sensing bin, the temperature measuring sensor, a signal emitter and a power supply are positioned in the same circuit loop, when the nanofiber spinning device is used, the temperature measuring sensor monitors the temperature in the collecting device through the temperature sensing bin, once the temperature is too high and the generation quality of nanofibers is damaged, the circuit loop where the temperature measuring sensor, the signal emitter and the power supply are positioned is conducted, and then the signal emitter sends a signal to a main control room to stop running. Therefore, the invention can automatically control the temperature and has higher control efficiency.
Drawings
Fig. 1 is a schematic structural view of the present invention.
Fig. 2 is a schematic view of the structure of the nozzle of fig. 1.
Fig. 3 is a schematic structural view of the fetching port in fig. 1.
Fig. 4 is a schematic structural view of the temperature sensor of fig. 1.
Fig. 5 is a plan view of the temperature sensing element of fig. 4.
In the figure: the device comprises a base 1, a motor 2, a rotating shaft 3, a material containing rotor 4, a material containing cavity 41, a top groove 42, a bottom groove 43, a collecting device 5, an upper inner arc edge 51, a middle vertical edge 52, a lower inner arc edge 53, a temperature measuring sensor 6, a metal shell 61, an input power line 62, an output power line 63, a temperature sensing piece 64, a connecting part 65, a transition part 66, a front edge part 67, a lower baffle 68, an upper heater 7, a lower heater 71, a nozzle 8, an outer opening 81, a nozzle inner cavity 82, an inner opening 83, an inner flaring 84, a fetching cavity 9, a fetching opening 91, a check valve reed 92, an outer partition wall 10, a nanofiber 11 and a temperature sensing bin 12.
Detailed Description
The present invention will be described in further detail with reference to the following description and embodiments in conjunction with the accompanying drawings.
Referring to fig. 1 to 5, a nanofiber spinning device comprises a material containing rotor 4, a rotating shaft 3 and a collecting device 5, wherein the material containing rotor 4 is communicated with a nozzle 8, a polymer is contained in the material containing rotor 4, the bottom of the material containing rotor 4 is connected with the rotating shaft 3, and the collecting device 5 is arranged around the material containing rotor 4;
a material containing cavity 41 is formed in the material containing rotor 4, a polymer is arranged in the material containing cavity 41, a nozzle 8 communicated with the material containing cavity 41 is formed in the side wall of the material containing rotor 4, an upper heater 7 and a lower heater 71 are respectively arranged above and below the material containing rotor 4, the bottom of the material containing rotor 4 is connected with the top end of a rotating shaft 3, the bottom end of the rotating shaft 3 is connected with a motor 2 after penetrating through a base 1, an outer isolation wall 10 and a collecting device 5 are arranged on the base 1, a material taking cavity 9 is formed between the outer isolation wall 10 and the collecting device 5, and the material containing rotor 4, the upper heater 7, the lower heater 71 and the joint of the material containing rotor 4 and the rotating shaft 3 are all positioned in the collecting device 5; a temperature sensing bin 12 is arranged in the base 1, the outer wall of the temperature sensing bin 12 is positioned in the collecting device 5, a temperature measuring sensor 6 is arranged in the temperature sensing bin 12, the temperature measuring sensor 6, a signal emitter and a power supply are positioned in the same circuit loop, and the signal emitter is in signal connection with a main control room;
the temperature measuring sensor 6 comprises a metal shell 61, an input power line 62, an output power line 63 and a sheet-shaped temperature sensing element 64, wherein one end of the input power line 62 is connected with a signal emitter, the other end of the input power line 62 passes through the right wall of the metal shell 61 and then extends into the metal shell 61, one end of the output power line 63 is connected with a power supply, the other end of the output power line 63 passes through the left wall of the metal shell 61 and then extends to the position right above the other end of the input power line 62, the top end of the left wall of the metal shell 61 is connected with one end of the temperature sensing element 64, the other end of the temperature sensing element 64 extends to the position right above the output power line 63 in the metal shell 61, the top end of the right wall of the metal shell 61 passes through the top cover of the metal shell 61 and then is connected with one end of a.
The temperature sensing element 64 comprises a connecting part 65, a transition part 66 and a leading part 67, one end of the connecting part 65 is connected with the metal shell 61, the other end of the connecting part 65 is connected with the leading part 67 after passing through the transition part 66, and the width of the transition part 66 is smaller than that of the connecting part 65 and the leading part 67.
The included angle between the lower baffle plate 68 and the temperature sensing element 64 is 35-75 degrees.
The nozzle 8 comprises an outer opening 81, a nozzle inner cavity 82 and an inner opening 83 which are connected in sequence, the nozzle inner cavity 82 is of a cone frustum structure with a narrow outer part and a wide inner part, the diameter of the outer opening 81 is smaller than that of the inner opening 83, and the outer space of the nozzle 8 is communicated with the material containing cavity 41 after sequentially passing through the outer opening 81, the nozzle inner cavity 82 and the inner opening 83.
The pair of inner openings 83 are communicated with the material containing cavity 41 through inner flaring openings 84, and the diameter of the inner flaring openings 84 is larger than that of the pair of inner openings 83.
The top and the bottom of the material containing rotor 4 are respectively provided with a top groove 42 and a bottom groove 43, the bottom end of an upper heater 7 is arranged in the top groove 42, the top end of the upper heater 7 extends to the position right above the material containing rotor 4, the top end of a lower heater 71 is arranged in the bottom groove 43, and the bottom end of the lower heater 71 extends to the position right below the material containing rotor 4.
The lower heater 71 is sleeved on the outer wall of the rotating shaft 3, and the joint of the rotating shaft 3 and the material containing rotor 4 is higher than the top end of the lower heater 71.
The collecting device 5 is a tubular structure with openings at two ends, the side wall of the collecting device 5 comprises an upper inner arc edge 51, a middle vertical edge 52 and a lower inner arc edge 53, the upper inner arc edge 51 is connected with the top surface of the base 1 after sequentially passing through the middle vertical edge 52 and the lower inner arc edge 53, and the upper inner arc edge 51 and the lower inner arc edge 53 are both of an inner-turning structure.
An object taking opening 91 communicated with the object taking cavity 9 is formed in the side wall of the collecting device 5, and the nano fibers 11 collected on the collecting device 5 penetrate through the object taking opening 91 and then extend into the object taking cavity 9; the air pressure in the extraction cavity 9 is lower than the air pressure in the collecting device 5.
A check valve reed 92 is arranged in the fetching port 91.
When the device is used, the polymer in the material containing cavity 41 is in a molten state by heating the upper heater 7 and the lower heater 71, and molten liquid is obtained, the molten liquid has certain surface tension and molecular entanglement is in a reasonable range, when the rotating shaft 3 drives the material containing rotor 4 to make high-speed rotary motion, the molten liquid of the polymer forms a Taylor cone at the nozzle 8, and when the centrifugal force is greater than the viscoelasticity and the surface tension, the molten liquid is stretched to form nano fibers and is shot on the collecting device 5 to be convenient to collect. In addition, in the process of generating the nano-fiber, the temperature sensor 6 directly monitors the temperature in the collecting device 5 through the metal shell 61, once the temperature exceeds the set temperature, the temperature sensing piece 64 in the collecting device is bent downwards and deformed, the bent-down temperature sensing piece 64 presses down the output power line 63 to be connected with the input power line 62, so that a circuit loop where the temperature sensor 6, the signal emitter and the power supply are located is conducted, and then the signal emitter sends a signal to the main control room to stop running.
The above description is only a preferred embodiment of the present invention, and the scope of the present invention is not limited to the above embodiment, but equivalent modifications or changes made by those skilled in the art according to the present disclosure should be included in the scope of the present invention as set forth in the appended claims.
Claims (8)
1. The utility model provides a nanofiber weaving device, includes flourishing material rotor (4), rotation axis (3) and collection device (5), flourishing material rotor (4) communicates with each other with nozzle (8), and the bottom of flourishing material rotor (4) is connected with rotation axis (3), is provided with collection device (5), its characterized in that around flourishing material rotor (4):
the material containing rotor is characterized in that a material containing cavity (41) is formed in the material containing rotor (4), a nozzle (8) communicated with the material containing cavity (41) is formed in the side wall of the material containing rotor (4), an upper heater (7) and a lower heater (71) are respectively arranged above and below the material containing rotor (4), the bottom of the material containing rotor (4) is connected with the top end of a rotating shaft (3), the bottom end of the rotating shaft (3) penetrates through a base (1) and then is connected with a motor (2), an outer isolation wall (10) and a collecting device (5) are arranged on the base (1), a fetching cavity (9) is formed between the outer isolation wall (10) and the collecting device (5), and the material containing rotor (4), the upper heater (7), the lower heater (71) and the joint of the material containing rotor (4) and the rotating shaft (3) are all located in the collecting device (5); the temperature sensing device is characterized in that a temperature sensing bin (12) is arranged in the base (1), the outer wall of the temperature sensing bin (12) is located inside the collecting device (5), a temperature measuring sensor (6) is arranged inside the temperature sensing bin (12), the temperature measuring sensor (6), the signal emitter and the power supply are located in the same circuit loop, and the signal emitter is in signal connection with the main control room.
2. A nanofiber weaving device according to claim 1, characterized in that: the temperature sensing piece (64) comprises a connecting part (65), a transition part (66) and a leading edge part (67), one end of the connecting part (65) is connected with the metal shell (61), the other end of the connecting part (65) is connected with the leading edge part (67) through the transition part (66), and the width of the transition part (66) is smaller than the width of the connecting part (65) and the leading edge part (67).
3. A nanofiber weaving device according to claim 1, characterized in that: the included angle between the lower baffle plate (68) and the temperature sensing piece (64) is 35-75 degrees.
4. A nanofiber weaving device according to claim 1, 2 or 3 characterized in that: nozzle (8) including connect gradually to outer mouthful (81), mouth inner chamber (82) and to interior mouth (83), mouth inner chamber (82) are narrow interior wide circular truncated cone structure outward, are less than the diameter to interior mouth (83) to the diameter of outer mouthful (81), and the exterior space of nozzle (8) communicates with each other with flourishing material chamber (41) through outer mouthful (81), mouth inner chamber (82) in proper order, to mouthful (83) back.
5. A nanofiber weaving device according to claim 4, characterized in that: the inner openings (83) are communicated with the material containing cavity (41) through inner flaring openings (84), and the diameter of the inner flaring openings (84) is larger than that of the inner openings (83).
6. A nanofiber weaving device according to claim 1, 2 or 3 characterized in that: the material containing rotor is characterized in that a top groove (42) and a bottom groove (43) are respectively formed in the top and the bottom of the material containing rotor (4), the bottom end of an upper heater (7) is arranged in the top groove (42), the top end of the upper heater (7) extends to the position right above the material containing rotor (4), the top end of a lower heater (71) is arranged in the bottom groove (43), and the bottom end of the lower heater (71) extends to the position right below the material containing rotor (4).
7. A nanofiber weaving device according to claim 6, characterized in that: the lower heater (71) is sleeved on the outer wall of the rotating shaft (3), and the joint of the rotating shaft (3) and the material containing rotor (4) is higher than the top end of the lower heater (71).
8. A nanofiber weaving device according to claim 1, 2 or 3 characterized in that: the collecting device (5) is of a cylindrical structure with two open ends, the side wall of the collecting device (5) comprises an upper inner arc edge (51), a middle vertical edge (52) and a lower inner arc edge (53), the upper inner arc edge (51) is connected with the top surface of the base (1) after sequentially passing through the middle vertical edge (52) and the lower inner arc edge (53), and the upper inner arc edge (51) and the lower inner arc edge (53) are of an inner-turning structure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911393701.5A CN110952154A (en) | 2019-12-30 | 2019-12-30 | Nanofiber spinning device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911393701.5A CN110952154A (en) | 2019-12-30 | 2019-12-30 | Nanofiber spinning device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110952154A true CN110952154A (en) | 2020-04-03 |
Family
ID=69985031
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201911393701.5A Withdrawn CN110952154A (en) | 2019-12-30 | 2019-12-30 | Nanofiber spinning device |
Country Status (1)
| Country | Link |
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| CN (1) | CN110952154A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113502553A (en) * | 2021-06-10 | 2021-10-15 | 武汉纺织大学 | Double-liquid input rotary spinning device |
-
2019
- 2019-12-30 CN CN201911393701.5A patent/CN110952154A/en not_active Withdrawn
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113502553A (en) * | 2021-06-10 | 2021-10-15 | 武汉纺织大学 | Double-liquid input rotary spinning device |
| CN113502553B (en) * | 2021-06-10 | 2022-04-19 | 武汉纺织大学 | Double-liquid input rotary spinning device |
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Application publication date: 20200403 |