CN108754637A - A kind of the melt differential electric spinning equipment and method of the continuous direct plastication feed of film - Google Patents
A kind of the melt differential electric spinning equipment and method of the continuous direct plastication feed of film Download PDFInfo
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- CN108754637A CN108754637A CN201810929614.6A CN201810929614A CN108754637A CN 108754637 A CN108754637 A CN 108754637A CN 201810929614 A CN201810929614 A CN 201810929614A CN 108754637 A CN108754637 A CN 108754637A
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- roller
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- heating roller
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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
- D01D5/0007—Electro-spinning
- D01D5/0061—Electro-spinning characterised by the electro-spinning apparatus
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
- Y02P70/50—Manufacturing or production processes characterised by the final manufactured product
- Y02P70/62—Manufacturing or production processes characterised by the final manufactured product related technologies for production or treatment of textile or flexible materials or products thereof, including footwear
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Textile Engineering (AREA)
- Spinning Methods And Devices For Manufacturing Artificial Fibers (AREA)
- Extrusion Moulding Of Plastics Or The Like (AREA)
Abstract
The present invention proposes a kind of the melt differential electric spinning equipment and method of the continuous direct plastication feed of film, device includes mainly side plate, unreels roller, motor, heats roller, scraper plate, striker plate, blanking ring, electrode plate, HV generator, air compressor and take-up drums, by thinfilms on unreeling roller, heating roller both ends electrified regulation ensures that film can melt within a short period of time to set temperature；Film is drawn with insulating tool to heating roller surface, film is gradually tensed, and adjustment motor makes heating roller and unreels the feeding speed that roller reaches suitable rotational speed to be optimal；The film directly quickly squeezed out using extruder is solved the problems, such as melt degradation oxidation, significantly improves spinning quality, melt is flowed out by elongate slot in addition participates in spinning, and jet stream is more, and spinning efficiency is high as the thought of raw material.Apparatus structure is simple, while improving product efficiency, improves product quality, meets the requirement of industrialized production stability.
Description
Technical field
The invention patent relates to the melt differential electric spinning equipments and method of a kind of continuous direct plastication feed of film, belong to electrostatic
Spinning field.
Background technology
It is the advantages that method of electrostatic spinning, adaptability to raw materials is wide, at low cost, equipment is simple, extensive by academia and industrial quarters
It is considered that a kind of industrialization prepares the method for micro nanometer fiber being simple and efficient, and most promising process.It is basic
Principle is that polymer solution or melt form taylor cone under the action of high-pressure electrostatic field force, in capillary end, and then fly to
Reception device, the evaporation of the solvent in solution or melt solidification, finally form superfine fibre on the reception device.Wherein solution electrostatic
Spin processes are due to the use of organic solvent, the problems such as bringing environmental pollution, thus in recent years melt electrostatic spinning gradually by
Concern.
With the development of melt electrostatic spinning technology, melt electrostatic spinning process is plasticized plastics using extruder,
Granular or block-like plastic solidification is melted into melt after spiro rod plasticizing in extruder and heating devices heat, and melt is from squeezing
Go out in machine runner flow out after in high-voltage electrostatic field flow deformation, finally cooling and solidifying be collected device collection.Such as a kind of line
Property jet stream needle-free electrostatic spinning apparatus (CN103590121A), utilize linear jet flow thought, material extruder be plasticized
After melting, melt is attached to roller surface with roller rotation, and the flow deflector by being fixed on roller upper surface center, which is formed, to be connected
Continuous linear discharge stream improves spinning quality and jet stream homogeneity, but there are still certain problem, profits for this device for spinning
When with extruder plastifying material, extrusion channel is more complicated, and design and manufacture cost is high, on the other hand, work is squeezed out relative to conventional
The low discharge of skill makes in melt electrospinning processes polymer melt be in the condition of high temperature for a long time, is oxidized easily and decomposed metamorphic,
Influence the final performance of product.
How conventional thought limitation is broken through, and it is a difficulty that best spinning quality is reasonably reached using processing technology
Point, patent of the present invention directly use manufactured plastic film as raw material, by heating roller on the basis of other processes
Fused films make melt be put into spinning technique rank by shorter heating power journey, are one to solve the degradation problem of material
Kind improves the new way of spinning quality.
Patent of invention content
Patent of the present invention directly uses manufactured film as former on the basis of original melt differential spining technology
Material is supplied with polymer melt continuous uniform, is avoided long-time heating that material modification is caused to be target, is proposed that a kind of film is continuous
The melt differential electric spinning equipment and method of direct plastication feed.
A kind of melt differential electric spinning equipment for the continuous direct plastication feed of film that patent of the present invention proposes, includes mainly side
Plate unreels roller, motor, heating roller, scraper plate, striker plate, blanking ring, electrode plate, HV generator, air compression
It is direct-connected by shaft coupling and motor respectively and rotated to unreel roller, heating roller and take-up drums for machine and take-up drums
Movement, installation unreels roller, heating roller, blanking ring, electrode plate and take-up drums respectively from top to bottom, is connected by screw
On side plate, the arc surface of scraper plate is parallel with the heating cylindrical outer surface of roller and clearance fit, scraper plate are located at heating roller shaft
Groove is arranged in two end surfaces in line direction, is fixed by the bar being fixed on side plate, and striker plate is located at scraper plate oblique upper, heating
Striker plate one end of roller axis direction is equipped with through-hole, by coordinating with shaft clearance, realizes around axis itself rotary motion, striker plate
It is adjustable by the rotary motion of striker plate with scraper plate slit gap, setting blanking ring and electrode plate, electrode sleeve-board immediately below gap
Outside blanking ring, and it is located in the middle part of blanking ring in short transverse, blanking ring provides high-speed flow, air pressure by air compressor
For contracting machine by conduit to air blowing below blanking ring, electrode plate connects HV generator high-voltage output end, provides spinning needs
High-voltage electrostatic field, striker plate and scrapes plate earthing.
A kind of melt differential electric spinning equipment for the continuous direct plastication feed of film that patent of the present invention proposes, raw material is thin
Film, film come from extruder and quickly squeeze out tape casting or blowfilm shaping, and the rotating speed of roller can be heated by setting and is added
Hot-rolling drum surface temperature makes film that there is suitable fusion time, film to rotate by a certain angle the thin of transporting molten with heating roller
Film material melt is connect guided on scraper plate in time when then melt rotates to wiper positions with heating roller, with directly by squeezing
The melt electrostatic spinning technique for going out machine feed is compared, this process substantially reduces the time that melt is heated continuously, and melt will not
Apparent degradation is generated, ensure that the homogeneity of melt and the stability of physical property.
A kind of melt differential electric spinning equipment for the continuous direct plastication feed of film that patent of the present invention proposes, wherein heating roller
Cylinder can use the carbon resistances such as graphite or graphene mode of heating as roll body material, and graphite has good thermal conductivity and conduction
Property, heat transfer is very fast, and temperature-controllable is good.Also it can be heated using heat medium inside heating roller, heat medium can be
The media such as high temperature heat conductive oil, high-temperature gas or other high-temperature resisting liquids.Common plastics thin film melt temperature range is 100 DEG C -300
DEG C, the controllable setting range of heating roller drum surface temperature is 40 DEG C -500 DEG C, it is ensured that most plastic films can melt, dress
Set wide adaptability.It is such as directly heated as heating resistor using roll body material, roller surface electrification, to prevent from coming from spinning high pressure
The electrostatic interference of electrostatic field and electrostatic breakdown are smearing one layer of heat safe insulation on the scraper plate arc surface of heating roller cooperation
Material, material can be hexagonal boron nitride, fluorubber or polytetrafluoroethylene (PTFE) etc..
A kind of melt differential electric spinning equipment for the continuous direct plastication feed of film that patent of the present invention proposes, striker plate can lead to
The shaft adjustment being fixedly connected is crossed with the gap range between scraper plate, gap adjustable range is 0.05-3mm.The setting of striker plate
It plays heat preservation and protection melt and contacts caused melt oxidation with air, while striker plate contributes to the gap between scraper plate
So that the melt flow of film conversion, melt is improved in the linear directional spreding homogeneity of slit, helps to obtain the more of stable uniform
Jet stream.Striker plate is located at scraper plate oblique upper and blocks melt, if gap will not flow out less than 0.05mm melts, if more than 3mm backgauges
Plate loses backgauge effect, and gap range is set as 0.05mm-3mm.
A kind of melt differential electric spinning equipment for the continuous direct plastication feed of film that patent of the present invention proposes, scraper plate and backgauge
Gap between plate is located at the surface of blanking ring through-hole, sees that gap is fully located within the scope of through-hole from top to bottom, and melt is from seam
Jet stream is formed at gap all passes through blanking ring.Secondary air is larger to blanking ring inner wall percussion when spinning, is ensureing jet stream
Under conditions of all passing through, blanking ring design shape, which is annular, prevents stress concentration.Electrode plate center through hole shape and blanking ring
Shape is identical, can more preferably be fixed with blanking ring, and electrode plate voltage range is 10-50kV.
A kind of melt differential electric spinning equipment for the continuous direct plastication feed of film that patent of the present invention proposes, the shell of blanking ring
There is blowhole in internal portion, is connect by conduit with air compressor, in spinning, opens air compressor and blows to blowhole,
Blanking ring lower air is blown away to form negative pressure, and blanking ring upper air can be pressed against lower section and form top-down air blast,
Air blast makes jet stream accelerate and applies friction draw power, and the refinement of fiber, blanking ring blowing wind-force power is promoted to be compressed by air
Valve control on machine.
A kind of melt differential electric spinning equipment for the continuous direct plastication feed of film that patent of the present invention proposes, wherein heating roller
Cylinder rotating speed naWith the rotating speed n for unreeling rollertMeet na≥nt, heating roller and the film unreeled between roller are heated always
The draw of roller, it is continuous to should be at tensioned state guarantee feed for film when rotating with heating roller.
A kind of corresponding operation of melt differential electric spinning equipment for the continuous direct plastication feed of film that patent of the present invention proposes
Method：By thinfilms on unreeling roller, the gap size of scraper plate and striker plate, heating roller both ends electrified regulation are adjusted
Ensure that film can melt within a short period of time to set temperature；Start and adjust motor speed and slowly drives heating roller,
Film is drawn with insulating tool to heating roller surface, film gradually tensed, and drive motor, which makes to unreel roller, slowly to be revolved
Turn, adjustment motor makes heating roller and unreels the feeding speed that roller reaches suitable rotational speed to be optimal；Film is heating
It is connect and is guided on scraper plate with the heating roller rotation short period after being melted on roller, melt heating time is shorter, and melt, which flows to, to be scraped
Before gap between plate and striker plate, start take-up drums, opens HV generator and form high-voltage electrostatic field, open air
Compressor makes blanking port form air blast from up to down, and the more jet streams of melt composition are drawn under the action of electric field and secondary air
It stretches and is cured as fiber, be finally collected roller collection.
The melt differential electric spinning equipment for the continuous direct plastication feed of a kind of film that patent of the present invention proposes, directly using crowded
Go out the thought of film that machine quickly squeezes out as raw material, solve the problems, such as melt degradation oxidation, significantly improve spinning quality,
In addition melt is flowed out by elongate slot participates in spinning, and jet stream is more, and spinning efficiency is high.Apparatus structure is simple, is improving product effect
While rate, product quality is improved, meets the requirement of industrialized production stability.
Description of the drawings
Fig. 1 is a kind of melt differential electric spinning equipment overall structure signal of the continuous direct plastication feed of film of patent of the present invention
Figure；
Fig. 2 is the faces electric spinning equipment X-X shown in FIG. 1 sectional view；
Fig. 3 is blanking ring blowing mouth schematic cross-section shown in FIG. 1；
Fig. 4 is gap enlarged cross-sectional view between scraper plate and striker plate shown in FIG. 1；
In figure：1- side plates；2- is for deflector roll cylinder；3- motor；4- shaft couplings；5- heats roller；6- scraper plates；7- striker plates；
8- HV generators；9- electrode plates；10- blanking rings；11- air compressors；12- take-up drums.
Specific implementation mode
Patent of the present invention proposes a kind of melt differential electric spinning equipment of the continuous direct plastication feed of film.Such as the institutes of Fig. 1~4
Show, the electric spinning equipment mainly by side plate 1, unreel roller 2, motor 3, shaft coupling 4, heating roller 5, scraper plate 6, striker plate 7, high
It presses electrostatic generator 8, electrode plate 9, blanking ring 10, air compressor 11, take-up drums 12 to form, unreels roller 2, heating roller
5 is direct-connected by shaft coupling 4 and motor 3 with take-up drums 11, and installation unreels roller 2, heating roller 5, falls respectively from top to bottom
Expect ring 10 and electrode plate 9, take-up drums 12, is connected by screw on side plate 1, the faces arc surface C and the heating roller of scraper plate 6
5 cylindrical outer surface is parallel and clearance fit, scraper plate 6 are fastened by bar cramp, and hole is opened in 7 side of striker plate, and striker plate 7 passes through wedge
Key is fixed on axis, and the both ends of axis are threadedly coupled the gap between accurate adjustment scraper plate 6 and striker plate 7, scraper plate 6 with side plate 1
The faces B it is minimum be gap in same level, between both sides while minimum with the faces A of striker plate 7, be blanking immediately below gap
Ring 10 and electrode plate 9, electrode plate 9 are sleeved on outside blanking ring 10, and are located at the middle part of blanking ring 10 in short transverse, electrode plate 9 with
8 high-voltage output end of HV generator is connected, and 10 lateral opening hole of blanking ring is connected with air compressor 11.
Use patent of the present invention carry out the processing step of spinning for：It carries out heating roller 5 to be heated to set temperature, start
Motor 3 gives heating roller 5 offer one compared with the slow-speed of revolution, then electric by packaging film feeding to heating 5 surface suitable position of roller
Slowly driving unreels the rotation of roller 2 to motivation 3, adjusts motor speed later, makes heating roller 5 and unreel roller 2 and reach suitable
Rotating speed, film with heating roller 5 rotate to suitable position melt, when bath movement is to 6 position of scraper plate, is connect and guide to scraper plate 6
Surface B, motor start-up take-up drums 12 rotate, and open HV generator 8, high pressure is generated between metallic plate 9 and scraper plate 6
Electrostatic field opens 11 valve of air compressor, when melt flows are to gap between scraper plate 6 and striker plate 7, in high-voltage electrostatic field
Under blowing effect, start spinning, spinning fibre is collected by take-up drums 12.
One of melt electrostatic spinning specific example is as follows：It is 120mm to unreel 2 outer diameter of roller, and be connected motor speed 3
It is set as 2r/min, using PLA films, film thickness 0.02, film width is 350mm, and heating 5 outer diameter of roller is 120mm, heating roller
5 roll body surface set temperature of cylinder are 220 DEG C, and 3 rotating speed of motor that is connected is set as 2r/min, the gap between scraper plate 6 and striker plate 7
It is set as 0.5mm, the 50mm immediately below gap of blanking ring 10,300mm is take-up drums 12 below blanking ring 10, a diameter of
100mm, when melt is flowed out from gap, electrode plate adds 35kV cathode voltages, and scraper plate 6 and striker plate 7 are grounded, and jet stream quantity is
170, spinning efficiency 170g/h, spinning fibre diameter is in the range of 200-800nm.
Claims (9)
1. a kind of melt differential electric spinning equipment of the continuous direct plastication feed of film, it is characterised in that：Include mainly side plate, unreel
Roller, motor, heating roller, scraper plate, striker plate, blanking ring, electrode plate, HV generator, air compressor and receipts
Collect roller, it is direct-connected by shaft coupling and motor respectively and obtain rotary motion to unreel roller, heating roller and take-up drums, from
Top to bottm is installed respectively unreels roller, heating roller, blanking ring, electrode plate and take-up drums, is connected by screw in side plate
On, the arc surface of scraper plate is parallel with the heating cylindrical outer surface of roller and clearance fit, scraper plate are located at heating roller axis direction
Two end surfaces groove is set, fixed by the bar being fixed on side plate, striker plate is located at scraper plate oblique upper, heating roller shaft
The striker plate one end in line direction is equipped with through-hole, by coordinating with shaft clearance, realizes around axis itself rotary motion, striker plate and scraper plate
Slit gap is adjustable by the rotary motion of striker plate, and setting blanking ring and electrode plate, electrode plate are sleeved on blanking immediately below gap
Outside ring, and it is located in the middle part of blanking ring in short transverse, blanking ring provides high-speed flow by air compressor, and air compressor is logical
Conduit is crossed to air blowing below blanking ring, electrode plate connects HV generator high-voltage output end, and the high pressure for providing spinning needs is quiet
Electric field, striker plate and scrapes plate earthing.
2. a kind of melt differential electric spinning equipment of the continuous direct plastication feed of film according to claim 1, feature exist
In：Heating roller can use the carbon resistances such as graphite or graphene mode of heating as roll body material.
3. a kind of melt differential electric spinning equipment of the continuous direct plastication feed of film according to claim 2, feature exist
In：One layer of heat safe insulating materials is smeared on the scraper plate arc surface coordinated with heating roller, material can be six sides nitridation
Boron, fluorubber or polytetrafluoroethylene (PTFE) etc..
4. a kind of melt differential electric spinning equipment of the continuous direct plastication feed of film according to claim 1, feature exist
In：It is heated using heat medium inside heating roller, heat medium can be high temperature heat conductive oil, high-temperature gas or other are resistance to
The media such as high-temp liquid.
5. a kind of melt differential electric spinning equipment of the continuous direct plastication feed of film according to claim 1, feature exist
In：Striker plate can be adjusted by the shaft being fixedly connected with the gap range between scraper plate, and gap adjustable range is 0.05-3mm.
6. a kind of melt differential electric spinning equipment of the continuous direct plastication feed of film according to claim 1, feature exist
In：Gap between scraper plate and striker plate is located at the surface of blanking ring through-hole, sees that gap is fully located at through-hole model from top to bottom
In enclosing, melt forms jet stream all by blanking ring from gap.
7. a kind of melt differential electric spinning equipment of the continuous direct plastication feed of film according to claim 1, feature exist
In：The enclosure interior of blanking ring has blowhole, and connecting blanking ring by conduit with air compressor dries wind-force power by air
Valve control on compressor.
8. a kind of melt differential electric spinning equipment of the continuous direct plastication feed of film according to claim 1, feature exist
In：Wherein heating roller rotating speed, which is greater than or equal to, unreels the rotating speed of roller, heats roller and unreels film between roller always
The draw of heated roller, it is continuous to should be at tensioned state guarantee feed for film when rotating with heating roller.
9. a kind of melt differential electrospinning method of the continuous direct plastication feed of film, it is characterised in that：Thinfilms are existed first
It unreels on roller, adjusts the gap size of scraper plate and striker plate, heating roller both ends electrified regulation ensures thin to set temperature
Film can melt within a short period of time；Start and adjust motor speed and slowly drive heating roller, by film insulating tool
To heating roller surface, film gradually tensed for traction, and drive motor, which makes to unreel roller, slowly to be rotated, adjustment motor make plus
Heat roller tube and unreel the feeding speed that roller reaches suitable rotational speed to be optimal；Film is on heating roller with heating after melting
The roller rotation short period, which is connect, to be guided on scraper plate, and melt heating time is shorter, and melt flows to the seam between scraper plate and striker plate
Before gap, start take-up drums, open HV generator and form high-voltage electrostatic field, opening air compressor makes blanking port from upper
It is formed down air blast, the more jet streams of melt composition are stretched under the action of electric field and secondary air and are cured as fiber, finally quilt
Take-up drums are collected.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810929614.6A CN108754637B (en) | 2018-08-15 | 2018-08-15 | Melt differential electrospinning device and method for continuous direct plasticizing and feeding of film |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201810929614.6A CN108754637B (en) | 2018-08-15 | 2018-08-15 | Melt differential electrospinning device and method for continuous direct plasticizing and feeding of film |
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| CN108754637A true CN108754637A (en) | 2018-11-06 |
| CN108754637B CN108754637B (en) | 2023-07-25 |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109440201A (en) * | 2018-12-10 | 2019-03-08 | 武汉华威科智能技术有限公司 | A kind of electrofluid ejecting device for melt electrostatic spinning |
| CN118544498A (en) * | 2024-05-28 | 2024-08-27 | 徐州屹之澜光电科技有限公司 | Thermal insulation frame for POF film production and processing |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN118544498A (en) * | 2024-05-28 | 2024-08-27 | 徐州屹之澜光电科技有限公司 | Thermal insulation frame for POF film production and processing |
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| Publication number | Publication date |
|---|---|
| CN108754637B (en) | 2023-07-25 |
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