CN103451751B - The electrostatic spinning apparatus of the petal shower nozzle of a kind of bilayer - Google Patents
The electrostatic spinning apparatus of the petal shower nozzle of a kind of bilayer Download PDFInfo
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- CN103451751B CN103451751B CN201310334445.9A CN201310334445A CN103451751B CN 103451751 B CN103451751 B CN 103451751B CN 201310334445 A CN201310334445 A CN 201310334445A CN 103451751 B CN103451751 B CN 103451751B
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Abstract
The invention discloses the electrostatic spinning apparatus of the petal shower nozzle of a kind of bilayer, belong to electrostatic spinning field.Mainly comprise motor, shaft coupling, upper barrel, blanking tube, receiving system, HV generator, shower nozzle, heater, screw rod, copper ring sliding bearing and temperature sensor, motor and upper barrel are supported by stay bolt, upper barrel is connected by lag bolt with blanking tube, intermediate tie has copper ring sliding bearing, flow manifold is provided with in copper ring sliding bearing, coordinate with the double-deck petal of shower nozzle, form double-deck jet, motor drives bolt rotary by shaft coupling, screw rod is matched with barrel by copper ring sliding bearing, lower end is threaded connection and is connected with shower nozzle and drives sprinkler rotation, driven by motor bolt rotary effectively can control spinning conveying amount, multi-stage diffluence and shower nozzle rotate, also can obtain thinner evenly fiber, and petal shower nozzle can improve spinning efficiency.
Description
Technical field
An electrostatic spinning apparatus for the petal shower nozzle of bilayer, belongs to electrostatic spinning field.
Background technology
Along with the research and development of nanometer technology, electrostatic spinning has become at present more popular and more effectively manufacture the method for superfine fibre.During preparation, solution or melt form taylor cone under the effect of voltage, and along with voltage constantly increases, taylor cone overcomes its own face tension force and forms injection thread, flies to receiving system, and constantly solidify to form fiber.At present, successfully obtained tens kinds of polymer fibers by electrospinning process, obtained fibre diameter, generally between several microns, even reaches nanoscale.The equipment of electrostatic spinning is simple, processing ease, technical process do not destroy material body, and prepared fiber has very wide application prospect in fields such as filtration, medical science, aviations.
Current existing electrostatic spinning apparatus general more or less there is the problems such as production efficiency is relatively low, mass flow discrepancy is even, and great majority research all concentrates on the research of single assembly, such as spray head designs, technical process etc., the present invention is then for the defect that melt electrostatic spinning exists, whole electrostatic spinning apparatus is improved, comprises feed system, heater, shower nozzle etc., general structure is optimized, thus improve electrostatic spinning production efficiency, obtain uniform fiber.
Summary of the invention
The present invention proposes the electrostatic spinning apparatus of the petal shower nozzle of a kind of bilayer, for the problems referred to above, can overcome the defects such as electrostatic spinning apparatus production efficiency is relatively low, mass flow discrepancy is even, simultaneously can also make fiber evenly, more very thin.
The scheme realizing above-mentioned purpose is: the electrostatic spinning apparatus of the petal shower nozzle of a kind of bilayer, mainly comprises motor, shaft coupling, upper barrel, blanking tube, receiving system, HV generator, shower nozzle, heater, screw rod, copper ring sliding bearing and temperature sensor.Motor is connected by stay bolt with upper barrel, by motor support above upper barrel; Upper barrel and blanking tube are connected by four uniform lag bolts, with easy disassembly; Screw rod upper end is connected with motor by shaft coupling, screw rod lower end is placed in the inner chamber of barrel and blanking tube, copper ring sliding bearing is installed between upper barrel and blanking tube, the lower end of copper ring sliding bearing and lower bearing aperture interference fit, the upper end of copper ring sliding bearing and upper bearing aperture interference fit, multiaspect cooperation makes copper ring sliding bearing accurately locate, and the interior contact surface of copper ring sliding bearing and screw clearance coordinate, form a sliding pair, polymer melt also has certain lubrication to it; Shower nozzle and screw rod are for being threaded, and a bolt rotary part plays conveying effect, and a part drives shower nozzle to rotate, and makes uniform flow distribution; Heater adopts heating collar, point three grades of heating, and guarantee preheating, melting fully put in place; HV generator is connected with receiving system, and temperature sensor transmits temperature, external temperature control box control temperature.
The electrostatic spinning apparatus of the petal shower nozzle of a kind of bilayer of the present invention, its motor is the stepper motor of adjustable speed, and can reach very little rotating speed, motor is connected with screw rod by shaft coupling, by regulating the rotating speed of motor, can screw speed be changed, thus change the flow of melt extrusion, reach the effect regulating melt flow, screw rod drives sprinkler rotation simultaneously, uniform molten polymer, makes jet even, thus spins to obtain uniform fiber.
The electrostatic spinning apparatus of the petal shower nozzle of a kind of bilayer of the present invention, the copper ring sliding bearing by upper bearing aperture and lower bearing aperture location is configured with at upper barrel and blanking tube junction, copper ring sliding bearing has location centering effect to screw rod, ensure that screw rod can not be eccentric in lower end, thus ensure the gap uniformity between screw rod and barrel, polymer uniform is transported; Copper ring sliding bearing there is runner, there is shunting action, coordinate shower nozzle to form double-deck jet; Copper ring sliding bearing coordinates screw rod to rotate in barrel, also drives shower nozzle to rotate, molten polymer is uniformly distributed along shower nozzle.
The electrostatic spinning apparatus of the petal shower nozzle of a kind of bilayer of the present invention, be provided with shunting material road, reduce flow, charge door vertical feeding, by three grades of heating collars of barrel outer wall, by polymer heating and melting, molten polymer flows in barrel inner chamber, molten polymer is divided into 16 strands by copper ring sliding bearing, uniform eight one-level runners in copper ring sliding bearing, eight one-level runners are divided into again 16 secondary runners, 16 secondary runners are divided into two groups, respectively there are eight runners, one group is inner ring runner, another group is outer ring runner, melt flows to the shower nozzle ectonexine conical surface respectively by Internal and external cycle runner.Shower nozzle is copper ring sliding bearing lower end immediately, for the core of this device, be divided into inside and outside two-layer, the melt flowed down through outer ring runner is uniformly distributed on the outer conical surface of shower nozzle, constantly fall thinning along the conical surface, there is lower annular channel shower nozzle upper end, and uniform eight vertical runners on lower annular channel, these eight vertical runners lead to the shower nozzle internal layer conical surface.Lower annular channel on shower nozzle and the upper annular channel on copper ring sliding bearing match the complete annular channel of composition one, are communicated with whole internal layer melt flow channel.
The electrostatic spinning apparatus of the petal shower nozzle of a kind of bilayer of the present invention, the bottom face of its shower nozzle adopts the milling of turnning and milling method to be petal, and the arc junction of petal, for smoothly transitting, prevents tip from causing taylor cone assemble and cause spinning efficiency to reduce.By the shower nozzle that bilayer is petal, individual layer spinning is converted into double-deck spinning, expand the area forming taylor cone, not only increase spinning efficiency, and under same traffic, be divided into multiple outlet, flow is reduced further, melt liquid film on two-layer shower nozzle is thinner, and the melt fiber of formation is more very thin.
The electrostatic spinning apparatus of the petal shower nozzle of a kind of bilayer of the present invention, can be used for the melt spinning of the polymer beads such as Powdered, granular, also can be used for solution-polymerized SBR.When for melt spinning, occur to prevent polymer beads to build bridge or be bonded in porch to fall, a material scraping plate is welded in screw rod upper end, shape is right-angled trapezium, its hypotenuse coordinates with charge door inner face, gradient is identical, when making material scraping plate with bolt rotary, is effectively scraped by the material of porch.When for solution-polymerized SBR, do not need to open heater.
The electrostatic spinning apparatus of the petal shower nozzle of a kind of bilayer of the present invention, driven by motor bolt rotary effectively can control spinning conveying amount, thus controls flow, drives shower nozzle to rotate, even spinning flow simultaneously; Multi-stage diffluence and shower nozzle rotate, and not only effectively can control flow, can obtain simultaneously thinner evenly fiber, and petal shower nozzle can improve spinning efficiency.
Accompanying drawing explanation
Fig. 1 is the sectional view of the general assembly drawing of the electrostatic spinning apparatus of the petal shower nozzle of a kind of bilayer of the present invention.
Fig. 2 is the top view of blanking tube in the electrostatic spinning apparatus of the petal shower nozzle of a kind of bilayer of the present invention.
Fig. 3 is the A-A echelon sectional view of blanking tube in the electrostatic spinning apparatus of the petal shower nozzle of a kind of bilayer of the present invention.
Fig. 4 is the front view full sectional view of shower nozzle in the electrostatic spinning apparatus of the petal shower nozzle of a kind of bilayer of the present invention.
Fig. 5 is the top view of shower nozzle in the electrostatic spinning apparatus of the petal shower nozzle of a kind of bilayer of the present invention.
Fig. 6 is the front view full sectional view of copper ring sliding bearing in the electrostatic spinning apparatus of the petal shower nozzle of a kind of bilayer of the present invention.
Fig. 7 is the upward view of copper ring sliding bearing in the electrostatic spinning apparatus of the petal shower nozzle of a kind of bilayer of the present invention.
Fig. 8 is the structural representation of screw rod in the electrostatic spinning apparatus of the petal shower nozzle of a kind of bilayer of the present invention.
In figure: 1-motor, 2-shaft coupling, 3-stay bolt, the upper barrel of 4-, 5-screw rod, 6-heating collar, 7-copper ring sliding bearing, 8-blanking tube, 9-shower nozzle, 10-temperature sensor, 11-lag bolt, 12-upper bearing aperture, 13-barrel inner chamber, 14-charge door, 15-lower bearing aperture, 16-shower nozzle screw thread, the outer conical surface of 17-shower nozzle, the 18-shower nozzle internal layer conical surface, the vertical runner of 19-, the upper annular channel of 20-, annular channel under 21-, 22-inner ring runner, 23-outer ring runner, 24-one-level runner, contact surface in 25-, 26-material scraping plate, 27-screw flight.
Detailed description of the invention
The electrostatic spinning apparatus of the petal shower nozzle of a kind of bilayer of the present invention, as shown in Figure 1, this device mainly comprises motor 1, shaft coupling 2, upper barrel 4, screw rod 5, heating collar 6, copper ring sliding bearing 7, blanking tube 8, shower nozzle 9, receiving system 28 and HV generator 29.Its course of work is that motor 1 drives screw rod 5 to rotate in barrel, drive shower nozzle 9 to rotate simultaneously, molten polymer is made to be uniformly distributed on the two-layer wall of shower nozzle 9, open HV generator 29, under voltage effect, molten polymer forms taylor cone on petal, increases voltage, taylor cone sprays and forms jet, falls receiving system 28 and forms fiber.
The electrostatic spinning apparatus of the petal shower nozzle of a kind of bilayer of the present invention, first, three heating collars 6 are set in basic, normal, high three temperature shelves respectively, temperature can be regulated according to actual needs, in guarantee, barrel 4 and blanking tube 8 are heated to preset temperature, upper barrel 4 and blanking tube 8 are connected by four uniform lag bolts 11, as shown in Figures 2 and 3.Temperature sensor 10 is directly connected with temperature control box, and temperature is passed to temperature control box, and temperature control box is used for carrying out control and regulation to heating-up temperature.When after heating temperatures to preset temperature, open motor 1, motor 1 is connected by stay bolt 3 with upper barrel 4, screw rod 5 is connected with motor 1 by shaft coupling 2, high molecular polymer is added in upper barrel 4 by charge door 14, high molecular polymer can be scraped from charge door 14 by the material scraping plate 26 on screw rod 5, prevents to build bridge and bonding phenomenon.Then the polymer of melting is rotated by screw rod 5 and transports, and from barrel inner chamber 13 charging downwards, the further melting of polymer melt, mobility strengthens.When polymer melt moves between upper barrel 4 and blanking tube 8, flowed downward by the one-level runner 24 by copper ring sliding bearing 7, polymer melt is shunted after flowing through one-level runner 24, flows to inner ring runner 22 and outer ring runner 23, as shown in Figure 6 and Figure 7.Upper barrel 4 is connected by lag bolt 11 with blanking tube 8, make the sealing of whole device good, between upper barrel 4 and blanking tube 8, copper ring sliding bearing 7 is installed, the lower end of copper ring sliding bearing 7 and lower bearing aperture 15 interference fit, the upper end of copper ring sliding bearing 7 and upper bearing aperture 12 interference fit, multiaspect cooperation makes copper ring sliding bearing 7 accurately locate.The interior contact surface 25 of copper ring sliding bearing 7 and screw rod 5 matched in clearance, form a sliding pair, and polymer melt also has certain lubrication to it.When melt in outer ring runner 23 continues down to flow to shower nozzle 9, gradually stretched by the outer conical surface 17 of the shower nozzle on shower nozzle 9 and form ground floor liquid film, the annular channel redistribution that melt in inner ring runner 22 forms through the upper annular channel 20 of shower nozzle 9 and the lower annular channel 21 of copper ring sliding bearing 7, flows to 8 vertical runners 19.Melt in vertical runner 19 flows to the shower nozzle internal layer conical surface 18, Uniform Tension is thinning again, the shower nozzle internal layer conical surface 18 forms second layer liquid film, end face milling cutter two-layer inside and outside shower nozzle 9 mills out the shape of petal, the arc transition of petal is round and smooth, does not have wedge angle, thus increases the hoop area forming taylor cone, can produce more multiple fibre, the shape of shower nozzle 9 and runner distribution are as shown in Figure 4 and Figure 5.Treat that runner is full of molten polymer, open HV generator 29, high-tension electricity is added in receiving system 28, continuous increase voltage, treats double-deck petal shower nozzle edge liquid film forming taylor cone, continues to increase voltage, taylor cone forms jet, sprays to receiving system 28, and constantly solidify to form fiber.In the process because the screw flight 27 of screw rod 5 and shower nozzle screw thread 16 match fixing, when screw rod 5 rotates, drive shower nozzle 9 uniform rotation together, be conducive to being uniformly distributed with thinning of melt, thus make the fiber of spinning more evenly, more very thin.When not heating, also can be used for the electrostatic spinning of the unclassified stores such as solution.
Claims (3)
1. the electrostatic spinning apparatus of the petal shower nozzle of bilayer, it is characterized in that: mainly comprise motor, shaft coupling, upper barrel, blanking tube, receiving system, HV generator, shower nozzle, heater, screw rod, copper ring sliding bearing and temperature sensor, motor is connected by stay bolt with upper barrel, by motor support above upper barrel; Upper barrel and blanking tube are connected by four uniform lag bolts; Screw rod upper end is connected with motor by shaft coupling, screw rod lower end is placed in the inner chamber of barrel and blanking tube, copper ring sliding bearing is installed between upper barrel and blanking tube, the lower end of copper ring sliding bearing and lower bearing aperture interference fit, the upper end of copper ring sliding bearing and upper bearing aperture interference fit; The interior contact surface of copper ring sliding bearing and screw clearance coordinate; Shower nozzle and screw rod are for being threaded, and a bolt rotary part plays conveying effect, and a part drives shower nozzle to rotate; Heater adopts heating collar, point three grades of heating; HV generator is connected with receiving system, and temperature sensor transmits temperature, external temperature control box control temperature; Copper ring sliding bearing there is runner, there is shunting action, coordinate shower nozzle to form double-deck jet; The bottom face of shower nozzle adopts the milling of turnning and milling method to be petal, and the arc junction of petal is for smoothly transitting.
2. the electrostatic spinning apparatus of the petal shower nozzle of a kind of bilayer according to claim 1, is characterized in that: motor is the stepper motor of adjustable speed.
3. the electrostatic spinning apparatus of the petal shower nozzle of a kind of bilayer according to claim 1, it is characterized in that: molten polymer is divided into 16 strands by copper ring sliding bearing, uniform eight one-level runners in copper ring sliding bearing, eight one-level runners are divided into again 16 secondary runners, 16 secondary runners are divided into two groups, respectively have eight runners, and one group is inner ring runner, another group is outer ring runner, and melt flows to the shower nozzle ectonexine conical surface respectively by Internal and external cycle runner; Shower nozzle is copper ring sliding bearing lower end immediately, be divided into inside and outside two-layer, the melt flowed down through outer ring runner is uniformly distributed on the outer conical surface of shower nozzle, constantly fall thinning along the conical surface, there is lower annular channel shower nozzle upper end, uniform eight vertical runners on lower annular channel, these eight vertical runners lead to the shower nozzle internal layer conical surface; Lower annular channel on shower nozzle and the upper annular channel on copper ring sliding bearing match the complete annular channel of composition one, are communicated with whole internal layer melt flow channel.
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| CN201310334445.9A CN103451751B (en) | 2013-08-02 | 2013-08-02 | The electrostatic spinning apparatus of the petal shower nozzle of a kind of bilayer |
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| CN201310334445.9A CN103451751B (en) | 2013-08-02 | 2013-08-02 | The electrostatic spinning apparatus of the petal shower nozzle of a kind of bilayer |
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| CN103451751B true CN103451751B (en) | 2015-09-02 |
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Families Citing this family (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103696026B (en) * | 2013-12-27 | 2016-02-24 | 北京化工大学 | A kind of controllable type vibrating electrostatic spinning device |
| CN103924309A (en) * | 2014-05-03 | 2014-07-16 | 北京化工大学 | Melt electrostatic spinning sprayer suitable for high-viscosity high-melting-point polymers |
| CN104928769B (en) * | 2015-07-13 | 2018-01-30 | 北京化工大学 | A kind of spinning feeding spinneret system for having double-deck barrel segmented shower nozzle |
| CN105543985B (en) * | 2016-01-29 | 2017-10-10 | 佛山轻子精密测控技术有限公司 | The adjustable electrostatic spinning nozzle in gap and array spinning system |
| CN109875115B (en) * | 2017-12-06 | 2022-02-18 | 贵州中烟工业有限责任公司 | Bead-blasting two-phase flow water dropper device for cigarettes and bead-blasting processing equipment for cigarettes |
| CN108437637B (en) * | 2018-02-28 | 2019-10-25 | 华中科技大学 | A kind of spiral fluid channel electrofluid spray head |
| CN108478861B (en) * | 2018-04-26 | 2021-03-30 | 华南理工大学 | Needle head used for 3D printing and method for 3D printing of cylindrical single fiber with petal-shaped groove |
| CN110257934A (en) * | 2019-06-26 | 2019-09-20 | 广东工业大学 | A kind of melting centrifugal spinning production equipment |
| CN110670155B (en) * | 2019-09-20 | 2021-10-01 | 上海松冒实业有限公司 | Petal-shaped nanofiber production device and method |
| CN114892291B (en) * | 2022-06-14 | 2024-01-23 | 绍兴山海纺织有限公司 | Composite FDY filament yarn and production process thereof |
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| CN101985778A (en) * | 2010-11-22 | 2011-03-16 | 北京化工大学 | Electrostatic spinning multi-strand wire spray head |
| CN103225116A (en) * | 2013-05-03 | 2013-07-31 | 北京化工大学 | Differential melt-electrospinning jet head |
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| US7887311B2 (en) * | 2004-09-09 | 2011-02-15 | The Research Foundation Of State University Of New York | Apparatus and method for electro-blowing or blowing-assisted electro-spinning technology |
| US9061904B2 (en) * | 2010-06-11 | 2015-06-23 | Rennsselaer Polytechnic Institute | Cellulose sheathed nanotube fiber |
| US8257641B1 (en) * | 2011-02-14 | 2012-09-04 | Xerox Corporation | Process of making core-sheath nanofibers by coaxial electrospinning |
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| CN101985778A (en) * | 2010-11-22 | 2011-03-16 | 北京化工大学 | Electrostatic spinning multi-strand wire spray head |
| CN103225116A (en) * | 2013-05-03 | 2013-07-31 | 北京化工大学 | Differential melt-electrospinning jet head |
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Effective date of registration: 20210621 Address after: Building 5, China Shengze textile technology pioneer park, no.1188, West 2nd Ring Road, Shengze Town, Wujiang District, Suzhou City, Jiangsu Province Patentee after: Jiangsu new vision advanced functional fiber Innovation Center Co.,Ltd. Address before: 100029 No.15, North Third Ring Road East, Chaoyang District, Beijing Patentee before: BEIJING University OF CHEMICAL TECHNOLOGY |