CN210711837U - High-efficient centrifugal spinning device - Google Patents
High-efficient centrifugal spinning device Download PDFInfo
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- CN210711837U CN210711837U CN201921369439.6U CN201921369439U CN210711837U CN 210711837 U CN210711837 U CN 210711837U CN 201921369439 U CN201921369439 U CN 201921369439U CN 210711837 U CN210711837 U CN 210711837U
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Abstract
The utility model provides a high-efficiency centrifugal spinning device, which comprises a feeding device, a centrifugal spinning spray head, a spray head driving motor, a collecting device and an environment control device; the centrifugal spinning nozzle is of a cylindrical structure, a feed inlet is formed in the top of the centrifugal spinning nozzle, an upper thread outlet group and a lower thread outlet group are formed in the wall of the cylinder, each thread outlet group is formed by arranging a plurality of thread outlet holes at equal intervals, and thread outlet needles are installed in the thread outlet holes; the collecting device comprises a supporting bottom plate, a shielding piece and a plurality of collecting plates, wherein a through hole is formed in the center of the supporting bottom plate, the shielding piece is of a circular ring structure with a certain height and a plurality of grooves arranged at intervals along the height direction, the plurality of collecting plates are movably connected to the supporting plate and are arranged in a ring structure at intervals by taking the through hole as the center, and the distance between each collecting plate and the centrifugal spinning spray head is adjustable. The utility model discloses can effectively avoid the nanofiber because of being inhaled and winding in the pivot of centrifugal spinning shower nozzle, simple easy operation realizes a large amount of, quick, the high-efficient preparation of micro-nanofiber.
Description
Technical Field
The utility model belongs to the technical field of micro-nanofiber spinning equipment, especially indicate a high-efficient centrifugal spinning device.
Background
The traditional method for preparing the micro-nano fibers is mainly wet spinning, but investment cost of wet spinning factory buildings and equipment is high, and not only various and bulky stock solution preparation and preparation equipment before spinning are needed, but also coagulation bath, circulation and recovery equipment are needed, so that the process flow is complex, the spinning speed is low, and the cost is high. The centrifugal spinning technology is a novel technology, and provides a new and wide development space for the preparation of micro-nano fibers. The principle of centrifugal spinning is that polymer solution or melt is thrown away from a nozzle by using centrifugal force generated by high-speed rotation of a spinning jet to form jet flow, and micro-nano fibers are formed after the polymer solution or the melt is rapidly stretched and solidified in air. The centrifugal force generated by the high-speed rotation of the nozzle is the main acting force for drawing the spinning solution. The centrifugal spinning overcomes the limitation of the traditional wet spinning and the existing electrostatic spinning on the preparation of the micro-nano fiber, and the micro-nano fiber can be prepared with high efficiency and low cost. However, due to structural design defects of the existing centrifugal spinning equipment, the nanofibers are often sucked and wound on the shaft because of air vortexes formed by high-speed rotation of the spray head, so that the spinning efficiency is low, and the requirement for mass preparation of the micro-nanofibers cannot be met.
SUMMERY OF THE UTILITY MODEL
For solving the defects of the prior art, the utility model provides a high-efficiency centrifugal spinning device.
The technical scheme of the utility model is realized like this:
a high efficiency centrifugal spinning apparatus comprising: the device comprises a feeding device, a centrifugal spinning spray head, a spray head driving motor, a collecting device and an environment control device;
the centrifugal spinning nozzle is of a cylindrical structure with a rotating shaft, a feed inlet is formed in the top of the cylindrical structure, an upper thread outlet group and a lower thread outlet group are formed in the cylinder wall along the circumferential direction of the cylindrical structure, each thread outlet group is formed by arranging a plurality of thread outlet holes at equal intervals, and a millimeter-grade thread outlet needle head is mounted in each thread outlet hole;
the collecting device comprises a supporting bottom plate, a shielding piece and a plurality of collecting plates, wherein the shielding piece and the collecting plates are arranged in the center of the supporting bottom plate, a through hole is formed in the center of the supporting bottom plate, the shielding piece is of a circular ring structure with a certain height and a plurality of grooves arranged at intervals in the height direction, the collecting plates are vertical cylindrical collecting plates, the collecting plates are movably connected to the supporting plate and are arranged at intervals by taking the through hole as the center to form a ring structure, the relative distance between the collecting plates and the centrifugal spinning spray head is adjustable, and the top end of the shielding piece is higher than the lower edge of the centrifugal spinning spray head and lower than the lower;
the feeding device is connected with the feeding hole, a rotating shaft of the centrifugal spinning nozzle penetrates out of the through hole and then is connected with a nozzle driving motor located below the supporting bottom plate, and the centrifugal spinning nozzle is located right above the shielding piece.
Preferably, the top end of the shielding piece is 5mm higher than the lower edge of the centrifugal spinning spray head, and the top end of the shielding piece is 10mm lower than the filament outlet needle head of the lower filament outlet hole group.
Further preferably, the upper and lower wire hole sets are spaced apart by 20 mm.
Further preferably, the feeding device comprises a liquid storage device, a liquid adding pump driving motor and a feeding pipe, the spinning solution is placed in the liquid storage device, and the spinning solution is conveyed to the centrifugal spinning spray head through the feeding pipe under the action of the liquid adding pump.
Further preferably, the environmental control means comprises heating means, dehumidifying means and air-exhaust means.
More preferably, the intelligent spray gun further comprises an intelligent controller, wherein the intelligent controller is respectively connected with the heating device, the dehumidifying device and the air exhausting device, and the intelligent controller is respectively connected with the liquid adding pump driving motor and the spray head driving motor through a frequency converter.
Most preferably, the reservoir, the collecting plate, the shielding member and the feeding pipe are respectively a stainless steel reservoir, a stainless steel collecting plate, a stainless steel shielding member and a stainless steel feeding pipe.
Compared with the prior art, the utility model discloses owing to set up the shielding piece, can effectively avoid the nanofiber to be inhaled and twine in centrifugal spinning shower nozzle's pivot because the high-speed rotatory air swirl that forms of shower nozzle, be annular equidistance interval arrangement through using centrifugal spinning shower nozzle as the center with the collecting plate, increased the space that the fibre was collected to realize the little fibrous a large amount of preparations of centrifugal spinning. And, the utility model discloses need not high-tension electric field, operating condition is mild, and degree of automation is high, simple easy operation, and spinning efficiency is high, realizes a large amount of micro-nano fiber's high efficiency preparation.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without inventive exercise.
Fig. 1 is a schematic structural diagram of the present invention.
Wherein:
1. a reservoir; 2. a liquid adding pump; 3. a liquid adding pump driving motor; 4. a centrifugal spinning nozzle; 5. a collection plate; 6. a shield; 7. a nozzle driving motor; 8. a heating device; 9. a dehumidifying device; 10. an air exhaust device; 11. a frequency converter; 12. an intelligent controller; 13. a silk outlet needle head; 14. and (4) feeding a pipe.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
As shown in fig. 1: a high efficiency centrifugal spinning apparatus comprising: the device comprises a feeding device, a centrifugal spinning nozzle 4, a nozzle driving motor 7, a collecting device, an environment control device and an intelligent controller 12, wherein the environment control device comprises a heating device 8, a dehumidifying device 9 and an exhaust device 10, the intelligent controller is respectively connected with the heating device 8 (a silicon carbide heating pipe with the optimal power of 600W), the dehumidifying device 9 (a semiconductor wafer refrigeration dehumidifying control device with the optimal intelligent high preference) and the exhaust device 10 (a common fan can be used), and the intelligent controller 12 is respectively connected with a liquid feeding pump driving motor 3 and the nozzle driving motor 7 through a frequency converter 11;
the feeding device comprises a liquid storage device 1, a liquid adding pump 2, a liquid adding pump driving motor 3 and a feeding pipe 14, spinning solution is placed in the liquid storage device 1, and the spinning solution is conveyed to the centrifugal spinning spray head 4 through the feeding pipe 14 under the action of the liquid adding pump 2;
the centrifugal spinning nozzle 4 is of a cylindrical structure with a rotating shaft, a feed inlet is formed in the top of the cylindrical structure, an upper thread outlet group and a lower thread outlet group are formed in the cylinder wall along the circumferential direction of the cylindrical structure, the interval between the upper thread outlet group and the lower thread outlet group is preferably 20mm, each thread outlet group is formed by arranging a plurality of thread outlets at equal intervals, and each thread outlet is provided with a millimeter-grade thread outlet needle 13;
the collecting device comprises a supporting bottom plate, a shielding piece 6 and a plurality of collecting plates 5, wherein the shielding piece 6 and the collecting plates 5 are arranged in the center of the supporting bottom plate, a through hole is formed in the center of the supporting bottom plate, the shielding piece 6 is of a circular ring structure with a certain height and a plurality of grooves formed in the height direction at intervals, the collecting plates 5 are vertical cylindrical collecting plates, the collecting plates 5 are movably connected to the supporting plate and are arranged in a ring structure at intervals by taking the through hole as the center, the relative distance between the collecting plates 5 and the centrifugal spinning spray heads 4 can be adjusted according to process conditions so as to control the diameter, the uniformity and the yield of fibers, and the top end of the shielding piece 6 is higher than the lower edge of the centrifugal spinning spray heads 4; preferably, the top end of the shielding piece 6 is 5mm higher than the lower edge of the centrifugal spinning nozzle 4, and the top end of the shielding piece 6 is 10mm lower than the filament outlet needle head 13 of the lower filament outlet hole group;
the feeding device is connected with the feeding hole, a rotating shaft of the centrifugal spinning nozzle 4 penetrates through the through hole and then is connected with a nozzle driving motor 7 positioned below the supporting bottom plate, and the centrifugal spinning nozzle 4 is positioned right above the shielding piece 6; preferably, the reservoir 1, the collecting plate 5, the shield 6 and the feeding pipe 14 are respectively a stainless steel reservoir, a stainless steel collecting plate, a stainless steel shield and a stainless steel feeding pipe.
The working principle is as follows: the spinning solution is stored in a liquid storage device 1, and is pumped into a feeding pipe 14 by a liquid feeding pump 2 under the action of a liquid feeding pump driving motor 3 and then enters a centrifugal spinning nozzle 4 through a feeding hole; the nozzle driving motor 7 drives the centrifugal spinning nozzle 4 to rotate at a high speed, spinning liquid is thrown out through the filament outlet needle heads 13 arranged on the upper filament outlet group and the lower filament outlet group under the action of centrifugal force generated by high-speed rotation, formed jet flow is solidified and stretched in the air through processes of thinning, solvent volatilization and the like, and finally the jet flow is collected on the collecting plate 5 under the auxiliary action of the shielding piece 6.
Take preparation of micro-nano PVP fiber as an example. Firstly, preparing a spinning solution, namely weighing 20g of PVP (with the molecular weight of 1300K daltons), dissolving in deionized water, uniformly stirring, removing bubbles, and preparing the spinning solution with the mass concentration of 20%. The spinning solution is put into the liquid storage device 1, and the heating device 8 and the dehumidifying device 9 are turned on through the intelligent controller 12, so that the temperature and the humidity in the device are in the range of the process requirement. Starting a liquid adding pump driving motor 3, pumping the spinning solution into a feeding pipe 14 by a liquid adding pump 2, and then entering a centrifugal spinning nozzle 4 through a feeding hole; the nozzle driving motor 7 is started, the rotating speed of the nozzle driving motor 7 is controlled to be 6000rpm, the PVP spinning solution at the position of the yarn outlet needle 13 forms continuous jet flow under the action of centrifugal force, the jet flow volatilizes solvent in the air, solidification and stretching are carried out, micro-nano fibers are formed, and a large amount of fluffy micro-nano PVP fibers can be collected on the collecting plate 5 under the assistance of the baffle 6.
The above description is only a preferred embodiment of the present invention, and should not be taken as limiting the invention, and any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (7)
1. An efficient centrifugal spinning device is characterized in that: the method comprises the following steps: the device comprises a feeding device, a centrifugal spinning spray head (4), a spray head driving motor (7), a collecting device and an environment control device;
the centrifugal spinning nozzle (4) is of a cylindrical structure with a rotating shaft, a feed inlet is formed in the top of the cylindrical structure, an upper thread outlet group and a lower thread outlet group are formed in the cylinder wall along the circumferential direction of the cylindrical structure, each thread outlet group is formed by arranging a plurality of thread outlets at equal intervals, and a millimeter-grade thread outlet needle head (13) is mounted in each thread outlet;
the collecting device comprises a supporting bottom plate, a shielding piece (6) and a plurality of collecting plates (5), wherein the shielding piece (6) is arranged in the center of the supporting bottom plate, a through hole is formed in the center of the supporting bottom plate, the shielding piece (6) is of a circular ring structure which has a certain height and is provided with a plurality of grooves at intervals along the height direction, the collecting plates (5) are vertical cylindrical collecting plates, the collecting plates (5) are movably connected to the supporting bottom plate and are arranged in an annular structure at intervals by taking the through hole as the center, the relative distance between the collecting plates (5) and the centrifugal spinning spray heads (4) is adjustable, and the top end of the shielding piece (6) is higher than the lower edge of the centrifugal spinning spray heads (4) and lower than the lower thread outlet group;
the feeding device is connected with the feeding hole, a rotating shaft of the centrifugal spinning nozzle (4) penetrates out of the through hole and then is connected with a nozzle driving motor (7) located below the supporting bottom plate, and the centrifugal spinning nozzle (4) is located right above the shielding piece (6).
2. The high efficiency centrifugal spinning apparatus of claim 1, wherein: the top end of the shielding piece (6) is 5mm higher than the lower edge of the centrifugal spinning nozzle (4), and the top end of the shielding piece (6) is 10mm lower than the filament outlet needle head (13) of the lower filament outlet hole group.
3. The high efficiency centrifugal spinning apparatus of claim 1, wherein: the interval between the upper screw hole group and the lower screw hole group is 20 mm.
4. The high efficiency centrifugal spinning apparatus of claim 1, wherein: the feeding device comprises a liquid storage device (1), a liquid adding pump (2), a liquid adding pump driving motor (3) and a feeding pipe (14), spinning solution is placed in the liquid storage device (1), and the spinning solution is conveyed to the centrifugal spinning spray head (4) through the feeding pipe (14) under the action of the liquid adding pump (2).
5. The high efficiency centrifugal spinning apparatus of claim 1, wherein: the environment control device comprises a heating device (8), a dehumidifying device (9) and an air exhausting device (10).
6. A high efficiency centrifugal spinning apparatus according to any one of claims 1 to 5, wherein: the intelligent air-conditioning system is characterized by further comprising an intelligent controller (12), wherein the intelligent controller is respectively connected with the heating device (8), the dehumidifying device (9) and the air exhausting device (10), and is respectively connected with the liquid feeding pump driving motor (3) and the spray head driving motor (7) through a frequency converter (11).
7. The high efficiency centrifugal spinning apparatus of claim 6, wherein: the liquid storage device (1), the collecting plate (5), the shielding piece (6) and the feeding pipe (14) are respectively a stainless steel liquid storage device, a stainless steel collecting plate, a stainless steel shielding piece and a stainless steel feeding pipe.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921369439.6U CN210711837U (en) | 2019-08-21 | 2019-08-21 | High-efficient centrifugal spinning device |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201921369439.6U CN210711837U (en) | 2019-08-21 | 2019-08-21 | High-efficient centrifugal spinning device |
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| CN210711837U true CN210711837U (en) | 2020-06-09 |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112090289A (en) * | 2020-09-15 | 2020-12-18 | 苏州足迹自动化设备有限责任公司 | Device and process for preparing hollow fiber membrane by spinning hollow fiber yarns |
| CN113502552A (en) * | 2021-06-10 | 2021-10-15 | 武汉纺织大学 | Spinning equipment for preparing nano fibers |
| CN114277458A (en) * | 2021-12-31 | 2022-04-05 | 武汉纺织大学 | Accumulation-free centrifugal spinning device and use method thereof |
| CN114293273A (en) * | 2021-12-31 | 2022-04-08 | 武汉纺织大学 | Side cone type automatic guiding type centrifugal spinning fiber collecting device |
| CN114540964A (en) * | 2020-11-26 | 2022-05-27 | 季华实验室 | Centrifugal electrostatic spinning equipment |
| CN115110181A (en) * | 2022-07-22 | 2022-09-27 | 佛山市中柔材料科技有限公司 | Equipment and method for twisting micro-nano fiber material |
-
2019
- 2019-08-21 CN CN201921369439.6U patent/CN210711837U/en active Active
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112090289A (en) * | 2020-09-15 | 2020-12-18 | 苏州足迹自动化设备有限责任公司 | Device and process for preparing hollow fiber membrane by spinning hollow fiber yarns |
| CN114540964A (en) * | 2020-11-26 | 2022-05-27 | 季华实验室 | Centrifugal electrostatic spinning equipment |
| CN113502552A (en) * | 2021-06-10 | 2021-10-15 | 武汉纺织大学 | Spinning equipment for preparing nano fibers |
| CN113502552B (en) * | 2021-06-10 | 2022-04-19 | 武汉纺织大学 | Spinning equipment for preparing nano fibers |
| CN114277458A (en) * | 2021-12-31 | 2022-04-05 | 武汉纺织大学 | Accumulation-free centrifugal spinning device and use method thereof |
| CN114293273A (en) * | 2021-12-31 | 2022-04-08 | 武汉纺织大学 | Side cone type automatic guiding type centrifugal spinning fiber collecting device |
| CN114277458B (en) * | 2021-12-31 | 2022-12-09 | 武汉纺织大学 | Accumulation-free centrifugal spinning device and using method thereof |
| CN115110181A (en) * | 2022-07-22 | 2022-09-27 | 佛山市中柔材料科技有限公司 | Equipment and method for twisting micro-nano fiber material |
| CN115110181B (en) * | 2022-07-22 | 2024-03-08 | 佛山市中柔材料科技有限公司 | Equipment and method for twisting micro-nano fiber material |
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