CN203238352U - Linear high-efficiency electrostatic spinning nozzle - Google Patents
Linear high-efficiency electrostatic spinning nozzle Download PDFInfo
- Publication number
- CN203238352U CN203238352U CN 201220629729 CN201220629729U CN203238352U CN 203238352 U CN203238352 U CN 203238352U CN 201220629729 CN201220629729 CN 201220629729 CN 201220629729 U CN201220629729 U CN 201220629729U CN 203238352 U CN203238352 U CN 203238352U
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- China
- Prior art keywords
- electrostatic spinning
- runner
- crescent
- barrel
- spinning nozzle
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Abstract
The utility model discloses a linear high-efficiency electrostatic spinning nozzle which is suitable for electrostatic spinning of polymer melts. The linear high-efficiency electrostatic spinning nozzle comprises a main flow channel, a crescent flow channel, a linear jetting opening, a guiding groove and a heating temperature control device. The polymer melts enter the crescent flow channel through the main flow channel and can flow to the linear jetting opening on a cylinder wall face through a crescent guiding face. Polymers flowing from the two sides of a cylinder wall flow to the bottom end of a horizontal material cylinder through an outer wall face, secondary flow distributing of the melts is achieved through the guiding groove, after an electrostatic field is added, multiple strands of even jetting streams are formed at the two sides of the bottom end respectively. The linear high-efficiency electrostatic spinning nozzle solves the problem that residual materials exist in the nozzle and is high in spinning efficiency and suitable for industrial production.
Description
Technical field
The utility model relates to a kind of electrostatic spinning nozzle, belongs to the electrostatic spinning field.
Background technology
Because the fast development of nanometer technology, electrostatic spinning causes countries in the world researcher's concern, nanofiber by the electrostatic spinning preparation has its unique feature, can be very long such as the nano silk that electrostatic spinning makes with respect to other spinning modes, fibre diameter is less, can reach 1nm, specific area is larger etc.Up to the present, reported that about 100 kinds of polymer can utilize electrostatic spinning to prepare superfine fibre.The nano-filaments of being prepared by electrostatic spinning can be used as filtering material, biological medicine functional material, electrode material, reinforcing material, sound-absorbing material etc.
At present that is that all right is ripe for electrostatic spinning technique, still exists a lot of problems to need to solve, and such as the quality control of electrostatic spinning nano fiber, electrostatic spinning yields poorly, and the commercial Application investment is relatively high, the mechanical property sign problem of nanofiber etc.The utility model adopts a kind of selenodont runner, make polymer in runner without remaining, and heating rod is parallel to runner, makes heating more even.This linear pattern high efficiency electrostatic spinning nozzle not only can improve spinning efficiency but also can improve spinning quality.
The utility model content
The utility model provides a kind of linear pattern high efficiency electrostatic spinning nozzle, compares with traditional spinning nozzle, and this linear pattern shower nozzle by sprue and crescent runner, can make melt more uniform distribution in runner.Simultaneously, the straight line spout in crescent runner both sides is easy to processing, overcomes the in the past unmanageable shortcoming of capillary spray orifice.Use crescent runner or the convex runner in bottom surface that the interior melt of runner is taken full advantage of, heating rod is parallel to the runner below, also can adopt fluid heating to replace heating rod, makes homogeneous heating.The guiding gutter degree of depth can to the melt second diffluence, make the melt that flow to horizontal barrel bottom more even greater than 0.2 millimeter.
The utility model provides a kind of linear pattern high efficiency electrostatic spinning nozzle, and it comprises sprue (2), crescent runner (5), straight line spout (8) and guiding gutter (9).Sprue (2) is vertical with crescent runner (5), the hole that straight line spout (8) or interval are arranged on the wall of crescent runner (5) bottom, the cambered surface of straight line spout (8) and crescent runner (5) is tangent, and the straight line spout is respectively opened one in horizontal barrel (11) both sides midline.The heating collar (3) of vertical barrel (12) is added in vertical barrel (12) outer wall, and crescent runner (5) below has heating rod (6), thermocouple (4) to lay respectively on vertical barrel wall (1) and the horizontal charge barrel (7).The inner runner of horizontal barrel (11) is the convex runner of crescent runner (5) or bottom surface, and horizontal barrel (11) bottom is plane or upper recess surface.Spinning melt enters the interior crescent runner (5) of horizontal barrel (11) from the sprue (2) in the vertical barrel (12), in the crescent runner, evenly distribute, by the crescent moon curved surface can make melt more uniform sequential flow to straight line spout (8), after adding electrostatic field, melt flows to horizontal barrel (11) outer wall by the straight line shower nozzle, through guiding gutter (9) second diffluence, assemble in both sides, horizontal barrel bottom respectively from the melt that the both sides shower nozzle flows out, form the uniform injection stream of multiply.
The linear pattern high efficiency electrostatic spinning nozzle that the utility model proposes, the runner of shower nozzle adopt crescent that material is taken full advantage of, and avoid buildup, have also avoided the Long contact time of fused materials and air, reduce thermal-oxidative degradation; The horizontal barrel bottom of shower nozzle is plane or upper recess surface, and two bottom sides is provided with guiding gutter, can form more more uniform taylor cones, greatly improves spinning efficiency, suitability for industrialized production.
Description of drawings
Fig. 1 is a kind of linear pattern high efficiency electrostatic of the utility model spinning nozzle half sectional view
Fig. 2 is left cutaway view of the present utility model
Fig. 3 is horizontal barrel cutaway view of the present utility model
Among the figure: the vertical barrel wall of 1-; The 2-sprue; The 3-heating collar; The 4-thermocouple; 5-crescent runner; The 6-heating rod; 7-horizontal charge barrel; 8-straight line spout; The 9-guiding gutter; The 10-end socket; The horizontal barrel of 11-; The vertical barrel of 12-
The specific embodiment
A kind of linear pattern high efficiency electrostatic of the utility model spinning nozzle, it mainly comprise vertical barrel (12) and with the horizontal barrel (11) of vertical barrel (12) by being welded to connect, be crescent runner (5) in the horizontal barrel (11), wherein the central angle of crescent runner (5) arc surface is 100 °, radius is 12mm, crescent runner (5) both sides are straight line shower nozzle (8), tangent with crescent runner arc surface, straight line spout (8) slit width is 0.3mm, the heating collar (3) that is used for the material preheating is positioned at vertical barrel (12) bottom, be positioned under horizontal barrel (11) the crescent runner (5) for the heating rod (6) that adds thermal material, external diameter is 8mm, thermocouple (4) is fixed on vertical barrel (12) and the horizontal barrel (11) by boring, end socket (10) is welded on horizontal barrel (11) two ends, and guiding gutter (9) is located near on the wall of bottom.
Spinning step: at first, the heating collar (3) of vertical barrel (12) bottom is set a lower temperature, material is carried out preheating, heating rod (6) is set a higher temperature, then the spinning material is added vertical barrel (12), after the melt melting, crescent runner (5) interior flow direction of material straight line spout (8).At last, when spout has adeciduate melt droplets outward by the time, add electrostatic field, the melt drop is along horizontal barrel (11) outer wall to downstream to guiding gutter (9), through guiding gutter (9) second diffluence, make the melt droplet distribution more even, melt forms taylor cone in horizontal barrel (11) base plane under electric field action, can spin the even filament of multiply.
Claims (5)
1. linear pattern high efficiency electrostatic spinning nozzle, it comprises sprue (2), crescent runner (5), straight line spout (8) and guiding gutter (9), sprue (2) is vertical with crescent runner (5), the hole at straight line spout (8) or interval is positioned at place, crescent runner (5) bottom, the left and right sides, the cambered surface of straight line spout (8) and crescent runner (5) is tangent, the straight line spout is respectively opened one in horizontal barrel (11) both sides midline, there is end socket (10) at horizontal barrel two ends, the heating collar (3) of vertical barrel (12) is added in vertical barrel (12) outer wall, there is heating rod (6) crescent runner (5) below, thermocouple (4) lays respectively on vertical barrel wall (1) and the horizontal charge barrel (7), and horizontal barrel (11) bottom is plane or upper recess surface.
2. a kind of linear pattern high efficiency electrostatic spinning nozzle according to claim 1 is characterized in that the inner runner of horizontal barrel (11) is the convex runner of crescent runner (5) or bottom surface.
3. a kind of linear pattern high efficiency electrostatic spinning nozzle according to claim 1 is characterized in that having on the wall of crescent runner (5) bottom the hole at straight line spout (8) or interval.
4. a kind of linear pattern high efficiency electrostatic spinning nozzle according to claim 1 is characterized in that horizontal barrel (11) is provided with guiding gutter (9) near the wall both sides of bottom, and the guiding gutter degree of depth is greater than 0.2 millimeter.
5. a kind of linear pattern high efficiency electrostatic spinning nozzle according to claim 1, the heater that it is characterized in that crescent runner (5) is that heating rod (6) is positioned at horizontal barrel (11).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220629729 CN203238352U (en) | 2012-11-23 | 2012-11-23 | Linear high-efficiency electrostatic spinning nozzle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220629729 CN203238352U (en) | 2012-11-23 | 2012-11-23 | Linear high-efficiency electrostatic spinning nozzle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203238352U true CN203238352U (en) | 2013-10-16 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220629729 Expired - Lifetime CN203238352U (en) | 2012-11-23 | 2012-11-23 | Linear high-efficiency electrostatic spinning nozzle |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203238352U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102953129A (en) * | 2012-11-27 | 2013-03-06 | 北京化工大学 | Linear type efficient electrostatic spinning spray nozzle |
| CN106048749A (en) * | 2016-08-03 | 2016-10-26 | 东华大学 | Linear tank-shaped needleless electrostatic spinning device and spinning method |
-
2012
- 2012-11-23 CN CN 201220629729 patent/CN203238352U/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102953129A (en) * | 2012-11-27 | 2013-03-06 | 北京化工大学 | Linear type efficient electrostatic spinning spray nozzle |
| CN106048749A (en) * | 2016-08-03 | 2016-10-26 | 东华大学 | Linear tank-shaped needleless electrostatic spinning device and spinning method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20131016 |