CN213772293U - Rotary type external convex tooth spinning head and component for electrostatic spinning - Google Patents
Rotary type external convex tooth spinning head and component for electrostatic spinning Download PDFInfo
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- CN213772293U CN213772293U CN202021535652.2U CN202021535652U CN213772293U CN 213772293 U CN213772293 U CN 213772293U CN 202021535652 U CN202021535652 U CN 202021535652U CN 213772293 U CN213772293 U CN 213772293U
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- 238000009987 spinning Methods 0.000 title claims abstract description 103
- 238000010041 electrostatic spinning Methods 0.000 title claims abstract description 55
- 229910052751 metal Inorganic materials 0.000 claims abstract description 67
- 239000002184 metal Substances 0.000 claims abstract description 67
- 240000005002 Erythronium dens canis Species 0.000 claims abstract description 15
- 238000001523 electrospinning Methods 0.000 claims description 11
- 238000003466 welding Methods 0.000 claims description 5
- 230000002093 peripheral effect Effects 0.000 claims description 3
- 239000002121 nanofiber Substances 0.000 abstract description 10
- 238000004519 manufacturing process Methods 0.000 abstract description 8
- 230000008901 benefit Effects 0.000 abstract description 7
- 239000007788 liquid Substances 0.000 abstract description 6
- 238000012423 maintenance Methods 0.000 abstract description 4
- 238000002360 preparation method Methods 0.000 abstract description 4
- 230000005685 electric field effect Effects 0.000 abstract description 3
- 230000008021 deposition Effects 0.000 abstract description 2
- 230000009467 reduction Effects 0.000 abstract description 2
- 239000004745 nonwoven fabric Substances 0.000 description 9
- 230000006872 improvement Effects 0.000 description 8
- 229920002239 polyacrylonitrile Polymers 0.000 description 8
- -1 polytetrafluoroethylene Polymers 0.000 description 8
- 239000000463 material Substances 0.000 description 7
- 238000000034 method Methods 0.000 description 6
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 5
- 229910000831 Steel Inorganic materials 0.000 description 5
- 229910052782 aluminium Inorganic materials 0.000 description 5
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 5
- 229910052802 copper Inorganic materials 0.000 description 5
- 239000010949 copper Substances 0.000 description 5
- 229910001220 stainless steel Inorganic materials 0.000 description 5
- 239000010935 stainless steel Substances 0.000 description 5
- 239000010959 steel Substances 0.000 description 5
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 4
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- 239000004372 Polyvinyl alcohol Substances 0.000 description 2
- 239000000956 alloy Substances 0.000 description 2
- 238000013461 design Methods 0.000 description 2
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- 239000011888 foil Substances 0.000 description 2
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- 229910052742 iron Inorganic materials 0.000 description 2
- 230000001788 irregular Effects 0.000 description 2
- 150000002739 metals Chemical class 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 229920000573 polyethylene Polymers 0.000 description 2
- 229920000139 polyethylene terephthalate Polymers 0.000 description 2
- 239000005020 polyethylene terephthalate Substances 0.000 description 2
- 229920001155 polypropylene Polymers 0.000 description 2
- 229920001343 polytetrafluoroethylene Polymers 0.000 description 2
- 239000004810 polytetrafluoroethylene Substances 0.000 description 2
- 229920002451 polyvinyl alcohol Polymers 0.000 description 2
- 241001146209 Curio rowleyanus Species 0.000 description 1
- 229920012266 Poly(ether sulfone) PES Polymers 0.000 description 1
- 229920000297 Rayon Polymers 0.000 description 1
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- Spinning Methods And Devices For Manufacturing Artificial Fibers (AREA)
- Nonwoven Fabrics (AREA)
Abstract
The utility model discloses an electrostatic spinning is with rotation type evagination tooth spinning subassembly, it includes high voltage direct current power supply, spinning cistern, bearing, receives silk device, motor and electrostatic spinning is with rotation type evagination tooth spinning head, electrostatic spinning is with rotation type evagination tooth spinning head including center pin, round roller and metal dogtooth. Electrostatic spinning is with rotation type evagination tooth spinning head enables the metal dogtooth and stretches into in the spinning cistern and is soaked by the spinning liquid when rotatory, when the metal dogtooth is rotatory to leave the spinning cistern, the spinning liquid can be detained on the metal dogtooth surface, and directly form a large amount of stable efflux from the metal dogtooth surface under the high-tension electric field effect, final deposition is on receiving the silk device, improve spinning efficiency and output by a wide margin, reduction in production cost, do benefit to nanofiber's scale preparation, be the needleless structure simultaneously, stop the phenomenon such as syringe needle jam, effectively reduce production and equipment maintenance expense, and the production cost is saved, long service life, do benefit to extensive popularization and application.
Description
Technical Field
The utility model belongs to the technical field of electrostatic spinning, concretely relates to a rotation type dogtooth spinning head and subassembly for electrostatic spinning for industrialization preparation nanofiber.
Background
Since the advent of electrostatic spinning technology, the device has the advantages of simple structure, low cost, abundant and various raw materials capable of electrospinning, flexible and controllable process and the like, and occupies an extremely important position in the field of nanofiber manufacturing.
The electrospinning technology has undergone three stages of single-needle electrospinning, multi-needle electrospinning and needle-free electrospinning from the beginning to the present. Wherein, the single-needle electrospinning has low productivity and cannot match the requirement of industrialization on yield. The multi-needle electrospinning solves the problem of capacity to a certain extent, but has the problems that needles are easy to block and difficult to clean, electrostatic repulsion between the needles and mutual interference between electric fields and the like, and the industrial popularization of the multi-needle electrospinning is seriously hindered. Needle-free electrospinning is currently the most promising industrial production technique for nanofibers.
The needleless electrostatic spinning improves the productivity of the nano-fiber by increasing the quantity of the charged jet flow on the surface of the spinning solution by removing a needle head.
The invention discloses a device and a method for directly preparing hollow nano yarns based on an electrostatic spinning technology one-step method, and the device and the method for directly preparing the hollow nano yarns based on the electrostatic spinning technology one-step method are disclosed in the publication number CN109023560A, wherein a rotary steel wire shaft spinning head is adopted, no needle is used, when the electric field strength exceeds a critical value, a large number of jet flows are directly formed from an open free liquid surface, and the problem of needle blockage is avoided. However, the contact surface between the steel wire and the spinning solution is small, so that the efficiency and the capacity of the equipment are limited, and the industrial popularization of the steel wire is influenced to a certain extent.
SUMMERY OF THE UTILITY MODEL
To the above, one of the purposes of the utility model lies in that, a rotation type evagination tooth spinning subassembly for electrostatic spinning is provided to the operation is convenient, and the operation is stable, and spinning efficiency is high, and the maintenance cost is low.
The second purpose of the utility model is to provide a structural design is ingenious, reasonable, can effectively promote equipment productivity and spinning efficiency, and avoids the problem of syringe needle jam completely, has reduced the electrostatic spinning of the cost of manufacturing and equipment maintenance and has used rotation type evagination tooth spinning head.
In order to achieve the above purpose, the utility model provides a technical scheme is:
the utility model provides an electrostatic spinning is with rotation type evagination tooth spinning pack, it includes high voltage direct current power supply, spinning tank, bearing, receipts silk device, motor and electrostatic spinning is with rotation type evagination tooth spinning head, electrostatic spinning is with rotation type evagination tooth spinning head includes center pin, round roller and metal dogtooth, and a plurality of metal dogteeth distribute on the roll surface of round roller, the round roller passes through the center pin setting on the spinning tank, and this round roller can use the center pin makes when rotating as the axle center the metal dogtooth contacts with the spinning liquid in the spinning tank, high voltage direct current power supply's negative pole end is connected with the spinning tank, positive terminal with electrostatic spinning is with rotation type evagination tooth spinning head is connected, the motor corresponds the end position setting of rotation type evagination tooth spinning head for electrostatic spinning to can drive this electrostatic spinning is with rotation type evagination tooth spinning head rotatory, the yarn collecting device is positioned above the rotary type externally-convex tooth spinning head for electrostatic spinning and is grounded or under negative pressure. The wire collecting device is an aluminum foil, a steel plate, a copper plate or non-woven fabric.
As an improvement of the present invention, the height of the protrusion of the metal teeth is 10-100 mm.
As an improvement of the utility model, the connection structure as an organic whole of round roller and metal dogtooth forms through die-casting or CNC processing.
As an improvement of the utility model, the round roller is of a split type structure with the metal convex tooth, the metal convex tooth is fixed through modes such as welding, rivet or bonding the outer peripheral face of round roller.
As an improvement of the present invention, the protruding direction of the metal convex teeth is parallel to the normal direction of the outer peripheral surface of the central shaft.
As an improvement of the present invention, the distance between two adjacent metal teeth arranged in the axial direction of the circular roller is 2 to 100 mm, and the included angle between two adjacent metal teeth arranged in the circumferential direction of the circular roller is 60 to 120 °.
As an improvement of the utility model, the metal convex teeth are metal cylinders or metal cones made of alloy materials of one or more metals of carbon steel, stainless steel, copper, aluminum and iron. In addition, the cross section outline of the metal convex tooth can also be regular polygon or other regular or irregular shapes.
As an improvement of the utility model, the diameter of the round roller is 20-200 mm, and the diameter of the central shaft is 5-15 mm.
As an improvement of the utility model, the spinning liquid groove is a groove body made of polytetrafluoroethylene, polyethylene, polypropylene or polyethylene terephthalate material. The spinning solution groove length is not less than 700 mm.
The utility model provides an electrostatic spinning is with rotation type evagination tooth spinning head, its includes center pin, round roller and metal dogtooth, and a plurality of metal dogteeth distribute in on the roll surface of round roller, the center pin sets up the both ends face centre of a circle position of round roller, the protruding height of metal dogtooth is 10 ~ 100 millimeters, follows the interval between two adjacent metal dogteeth of round roller axial arrangement is 2 ~ 100 millimeters, follows the contained angle between two adjacent metal dogteeth of round roller circumferencial direction arrangement is 60 ~ 120.
The utility model has the advantages that: the utility model has the advantages of ingenious and reasonable structural design, electrostatic spinning realizes through motor drive with rotation type convex tooth spinning head and stabilizes the continuation rotation, enable the metal convex tooth to stretch into the spinning cistern when rotatory and be soaked by the spinning solution, when the metal convex tooth is rotatory to leave the spinning cistern, the spinning solution can be detained on the metal convex tooth surface, and form a large amount of stable efflux directly from the metal convex tooth surface under the high-voltage electric field effect, final deposition is on receiving the silk device, the structure of no syringe needle simultaneously, stop appearing phenomena such as syringe needle jam, effectively reduce production and equipment maintenance expense, save manufacturing cost, can improve spinning efficiency and output by a wide margin, reduction in production cost, do benefit to the scale preparation of nanofiber; additionally the utility model discloses electrostatic spinning is with rotation type evagination tooth spinning head's simple structure easily realizes, stable in structure, and long service life does benefit to extensive popularization and application.
The present invention will be further explained with reference to the drawings and the embodiments.
Drawings
Fig. 1 is a schematic perspective view of the present invention.
Fig. 2 is a schematic view of the three-dimensional structure of the rotary type externally-convex-tooth spinning head for electrostatic spinning of the present invention 1.
Fig. 3 is a side view schematic of fig. 2.
Fig. 4 is a schematic perspective view of the rotary type externally-protruding-tooth spinning head for electrostatic spinning according to the present invention, fig. 2.
Fig. 5 is a side view schematic of the structure of fig. 4.
Fig. 6 is a scanning electron microscope picture of the nanofibers prepared by the present invention.
Detailed Description
Embodiment 1, referring to fig. 1 and fig. 3, the rotary type externally convex tooth spinning assembly for electrostatic spinning provided in this embodiment includes a high voltage dc power supply 1, a spinning solution tank 2, a bearing 3, a filament collecting device 4, a motor 5, and a rotary type externally convex tooth spinning head for electrostatic spinning. The rotary type externally convex tooth spinning head for electrostatic spinning comprises a central shaft 6, a round roller 7 and metal convex teeth 8.
The central shaft 6 is preferably an axis body made of carbon steel material, has a length of 700 mm and a diameter of 5 mm, and is used for connecting a transmission shaft of the motor 5 and the high-voltage direct-current power supply 1. The round roller 7 is preferably a roller body made of stainless steel materials, the length of the roller body is 500 mm, and the diameter of the roller body is 20 mm; the metal convex teeth 8 are preferably metal cylinders made of stainless steel materials, are fixed on the surface of the round roller 7 in a welding mode, have the diameter of 0.5 mm and the length of 10 mm, and have an included angle of 60 degrees in the circumferential direction between two adjacent metal convex teeth 8 and a distance of 2 mm in the axial direction between two adjacent metal convex teeth 8; in other embodiments, the central shaft 6, the round rollers 7 and the metal convex teeth 8 can also be made of other metal materials, such as carbon steel, stainless steel, copper, aluminum and iron, or alloy materials of several metals. The protruding height of the metal convex teeth 8 can be 10-100 mm, the distance between two adjacent metal convex teeth 8 arranged along the axial direction of the round roller 7 can be 2-100 mm, the included angle between two adjacent metal convex teeth 8 arranged along the circumferential direction of the round roller 7 can be 60-120 degrees, the diameter of the round roller 7 can be 20-200 mm, and the diameter of the central shaft 6 can be 5-15 mm. The metal convex teeth 8 can also be metal cones or other metal bodies with regular or irregular shapes, such as regular polygons, and the like.
The spinning solution tank 2 is a tank body made of polytetrafluoroethylene, and the length of the spinning solution tank 2 is 700 millimeters. In other embodiments, the spinning solution tank 2 may also be made of a tank body made of polyethylene, polypropylene or polyethylene terephthalate. The solution in the spinning solution tank 2 may be Polyacrylonitrile (PAN) solution, polyvinyl alcohol (PVA) solution or other kinds of organic or inorganic solutions. In this example, the solution in the spinning solution tank 2 was a 12% mass fraction polyacrylonitrile solution (PAN, average molecular weight 15,0000).
The solution in the spinning solution tank 2 is polyacrylonitrile solution (PAN, average molecular weight 5,0000) with the mass fraction of 15%. In other embodiments, the solution may be a Polyethersulfone (PES) solution, or other types of organic or inorganic solutions.
The negative end of the high-voltage direct-current power supply 1 is connected with the spinning solution tank 2, the positive end of the high-voltage direct-current power supply is connected with one end of the central shaft 6, the motor 5 is arranged at the position corresponding to the other end of the central shaft 6, and the driving shaft of the motor 5 is connected with the other end of the central shaft 6 through a coupler. The motor 5 can drive the rotary type externally convex tooth spinning head for electrostatic spinning to rotate when rotating.
In operation, the metal convex teeth 8 are ensured to be completely immersed into the spinning solution, preferably, the round roller 7 is also partially immersed into the spinning solution, and the depth of the round roller 7 immersed into the spinning solution is not more than 2/3 of the radial length of the round roller. The rotary type external convex tooth spinning head for electrostatic spinning is driven by a motor 5 to rotate at the speed of 10 revolutions per minute; the high-voltage direct-current power supply 1 is a 30-kilovolt power supply, the filament collecting device 4 is positioned above the rotary type externally-convex-tooth spinning head for electrostatic spinning, the distance between the rotary type externally-convex-tooth spinning head for electrostatic spinning and the filament collecting device 4 is 30 cm, the filament collecting device 4 is non-woven fabric, the width of the non-woven fabric is 200 cm, and the moving speed of the non-woven fabric is 5 m/min; in other embodiments, the wire take-up device 4 may also be a steel plate, a copper plate, an aluminum foil, or the like. The result shows that the rotary type convex tooth spinning assembly for electrostatic spinning is stable in operation, and the nano fibers finally collected on the non-woven fabric are uniform in size and free of defects.
the central shaft 6 is a shaft body made of stainless steel materials, the length is 2000 mm, and the diameter is 15 mm; the round roller 7 is a roller body made of aluminum material, the length is 1500 mm, and the diameter is 200 mm; the metal convex teeth 8 are metal cones made of copper materials, the metal cones are fixed on the surfaces of the round rollers in an adhesion mode, the diameter of each metal cone is 10 mm, and the length of each metal cone is 100 mm; the included angle of two adjacent metal convex teeth 8 in the circumferential direction is 120 degrees, and the distance between the conical bottoms of two adjacent metal convex teeth 8 in the axial direction is 100 millimeters; the length of the spinning solution tank 2 is 2500 mm. A polyacrylonitrile solution (PAN, average molecular weight 15,0000) with a mass fraction of 12% was placed in the spinning solution tank 2.
When the spinning head works, the rotary type external convex tooth spinning head for electrostatic spinning is driven by the motor 5 to rotate at the speed of 10 revolutions per minute; the high-voltage direct-current power supply 1 is a 30-kilovolt power supply, the distance between the rotary type convex tooth spinning head for electrostatic spinning and the filament collecting device 4 is 30 cm, the filament collecting device 4 is non-woven fabric, the width of the non-woven fabric is 200 cm, and the moving speed of the non-woven fabric is 5 m/min. The result shows that the rotary type convex tooth spinning assembly for electrostatic spinning is stable in operation, and the nano fibers finally collected on the non-woven fabric are uniform in size and free of defects.
The above-mentioned embodiments are only preferred embodiments of the present invention, and the present invention is not limited to all embodiments, and any technical solution using one of the above-mentioned embodiments or equivalent changes made according to the above-mentioned embodiments is within the scope of the present invention.
Referring to fig. 6, for adopting the utility model discloses nanofiber's scanning electron microscope image of rotation type threaded rod spinning subassembly preparation for electrostatic spinning, can obviously see out, fibrous form size is even basically, and the steady quality does not have defects such as string of beads adhesion.
To sum up, the utility model provides an electrostatic spinning is with rotation type evagination tooth spinning subassembly ingeniously takes away the spinning solution through metal dogtooth 8 on the rotation type evagination tooth spinning head for electrostatic spinning can continuously form a large amount of stable taylor cones on the metal dogtooth 8 on rotation type evagination tooth spinning head surface for the spinning solution, and then forms a large amount of stable efflux under the high-voltage electric field effect, and the deposit has improved spinning productivity and efficiency greatly on receiving silk device 4.
Variations and modifications to the above-described embodiments may occur to those skilled in the art, in light of the above teachings and teachings. Therefore, the present invention is not limited to the specific embodiments disclosed and described above, and some modifications and changes to the present invention should fall within the protection scope of the claims of the present invention. In addition, although specific terms are used herein, they are used for convenience of description and are not intended to limit the present invention in any way, and other components having the same or similar structures are within the scope of the present invention.
Claims (9)
1. The utility model provides an electrostatic spinning is with rotation type evagination tooth spinning pack, its characterized in that, it includes high voltage direct current power supply, spinning tank, bearing, receipts silk device, motor and electrostatic spinning is with rotation type evagination tooth spinning head, rotation type evagination tooth spinning head for electrostatic spinning includes center pin, round roller and metal dogtooth, and a plurality of metal dogteeth distribute on the roll surface of round roller, the round roller passes through the center pin setting on the spinning tank, and this round roller can use the center pin makes when rotating as the axle center the metal dogtooth contacts with the dope in the spinning tank, high voltage direct current power supply's negative pole end is connected with the spinning tank, positive pole end with rotation type evagination tooth spinning head is connected for electrostatic spinning, the motor corresponds the end position setting of rotation type evagination tooth spinning head for electrostatic spinning to can drive this electrostatic spinning is rotatory with rotation type evagination tooth spinning head, the yarn collecting device is positioned above the rotary type externally-convex tooth spinning head for electrostatic spinning.
2. The rotary type externally convex tooth spinning pack for electrostatic spinning according to claim 1, wherein the height of the metal convex teeth is 10-100 mm.
3. The rotary type externally convex tooth spinning pack for electrostatic spinning according to claim 1, wherein the circular roller and the metal convex tooth are of an integral connecting structure.
4. The rotary type male tooth spinning pack for electrospinning according to claim 1, wherein the metal male teeth are fixed to the outer circumferential surface of the round roller by welding, riveting or bonding.
5. The electrospinning rotary male tooth spinning pack according to claim 1, wherein the direction of the protrusions of the metal male teeth is parallel to the normal direction of the outer peripheral surface of the central shaft.
6. The rotary type externally convex-tooth spinning assembly for electrostatic spinning according to claim 1, wherein the distance between two adjacent metal convex teeth arranged along the axial direction of the circular roller is 2-100 mm, and the included angle between two adjacent metal convex teeth arranged along the circumferential direction of the circular roller is 60-120 °.
7. The rotary type externally convex tooth spinning pack for electrostatic spinning according to claim 1, wherein the diameter of the round roller is 20-200 mm.
8. The rotary externally convex tooth spinning pack according to claim 1, wherein the diameter of the central shaft is 5-15 mm.
9. The utility model provides an electrostatic spinning is with rotation type evagination tooth spinning head which characterized in that: the metal convex teeth are distributed on the roll surface of the round roll, the central shaft is arranged at the circle center positions of two end surfaces of the round roll, the protruding height of each metal convex tooth is 10-100 mm, the distance between every two adjacent metal convex teeth arranged along the axial direction of the round roll is 2-100 mm, and the included angle between every two adjacent metal convex teeth arranged along the circumferential direction of the round roll is 60-120 degrees.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021535652.2U CN213772293U (en) | 2020-07-29 | 2020-07-29 | Rotary type external convex tooth spinning head and component for electrostatic spinning |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021535652.2U CN213772293U (en) | 2020-07-29 | 2020-07-29 | Rotary type external convex tooth spinning head and component for electrostatic spinning |
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| Publication Number | Publication Date |
|---|---|
| CN213772293U true CN213772293U (en) | 2021-07-23 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202021535652.2U Active CN213772293U (en) | 2020-07-29 | 2020-07-29 | Rotary type external convex tooth spinning head and component for electrostatic spinning |
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| Country | Link |
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| CN (1) | CN213772293U (en) |
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- 2020-07-29 CN CN202021535652.2U patent/CN213772293U/en active Active
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