CN108166085A - A kind of fiber preparation facilities - Google Patents
A kind of fiber preparation facilities Download PDFInfo
- Publication number
- CN108166085A CN108166085A CN201711385642.8A CN201711385642A CN108166085A CN 108166085 A CN108166085 A CN 108166085A CN 201711385642 A CN201711385642 A CN 201711385642A CN 108166085 A CN108166085 A CN 108166085A
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- Prior art keywords
- flow generator
- moving stop
- flow
- distribution cavity
- high temperature
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Classifications
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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
- D01D13/00—Complete machines for producing artificial threads
-
- 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
- D01D5/12—Stretch-spinning methods
- D01D5/14—Stretch-spinning methods with flowing liquid or gaseous stretching media, e.g. solution-blowing
Abstract
The invention discloses a kind of fiber preparation facilities, are related to non-woven cloth spining technology field.The device includes hopper, high temperature screw rod, distribution cavity, flow generator, flow type calorifier, fumarole and spinneret orifice, and hopper is provided with above high temperature screw rod one end, and the high temperature screw rod other end is connected with distribution cavity；Flow generator is equipped with flow type calorifier；Spinneret orifice is set on distribution cavity lower end, and is arranged with two fumaroles at left and right sides of spinneret orifice；Flow generator is connected by two fumaroles of two snorkels respectively with distribution cavity lower end, and hopper is connected by high temperature screw rod in distribution cavity body with spinneret orifice；Alternation flow generator is additionally provided in flow generator, alternation flow generator includes cam follower, cam shaft, connecting rod, fixed link, moving stop and power supply device.Preparation facilities provided by the invention can improve Draft Effect, and thinner superfine fibre is prepared, suitable for the multiple fields application such as medical material, filtering adsorbing material.
Description
Technical field
The present invention relates to non-woven cloth spining technology field, more particularly to a kind of fiber preparation facilities.
Background technology
The purposes of superfine fibre Illegal fabrication cloth has very much, mainly including air conditioner filter, mask, filter element for purifier etc..
Wherein, meltblown is to have been commercialized the technical method for preparing superfine fibre at present, and relevant technical literature is mainly wrapped
Include United States Patent (USP)（US3959421, US5075068）, this method is by polymer melt after spinneret squeezes out, through two bursts of high speeds
The hot-air of high temperature carries out drawing-off and is refined into superfine fibre.The polymer fluid melted is needed in the spinning process, at a high speed
The hot-air of high temperature, energy consumption is larger, and spun fibre diameter is at 1 micron or more.
Existing ultrafine fiber preparation device is prepared using meltblown in superfine fibre detailed process, and staff is by polymer
Graininess slice added in from hopper A, the then extruding by high temperature screw rod B and heat effect, it is poly- that particle slice, which melts,
Polymer melt.Polymer melt is squeezed out by the quantitative output action of distribution cavity C from spinneret orifice D, the polymer melt of extrusion
It is blowed and sprayed by the air-flow of the wind turbine E high temperature and high speeds generated and draws and attenuates into superfine fibre, the ultrafine fiber preparation device such as Fig. 1 institutes
Show.
It should be noted that it is blowing and spraying for continuous uniform air-flow that the air-flow of existing melt blown technology, which blows and sprays mode, fiber is straight
The limit of diameter is 1 micron.In conventional meltblown, two strands of air-flows are symmetrical, have downward sum velocity, fiber in center line air-flow
It can vertical drop after spinneret orifice extrusion.That is, fiber can be by the downward drafting force of air-flow.It is if as shown in Fig. 2, fine
Tie up L directions（Fiber is axial）Parallel with airflow direction, fiber is known as frictional resistance F by the drafting force of air-flowp, i.e. conventional meltblown
The drawing-off of fiber is to be carried out drawing-off by the frictional resistance of air-flow by fiber in technique.If in addition, the speed of air-flow and fibre
It ties up axially vertical, then the airflow acting force that fiber is subject to is known as pressure drag FN, it is frictional resistance F in fig. 2pWith resultant force
FtAngle.
Inventor has found that pressure drag is apparent more much larger than the drawing-off effect of frictional resistance to the drawing-off effect of fiber, and
Fiber significantly fails to efficiently use the drawing-off effect of pressure drag in conventional meltblown technique, so as to cause traditional in industrialized production
Melt blown technology is difficult the limit of 1 micron of breakthrough, and the application of melt-blown micro fibre non-woven fabric material is very greatly depending on fiber is straight
Diameter, fibre diameter is thinner, and application range is wider.
Invention content
In view of the above-mentioned problems existing in the prior art, the present invention provides a kind of fiber preparation facilities, prepared by the fiber
Device is by setting alternation flow generator so that when meltblown is used to prepare superfine fibre, air-flow occurs this preparation facilities
It is that leading drawing-off mode carries out drawing-off that device, which can generate alternation air-flow and pressure drag is carried out to polymer melt, so as to improve
Thinner superfine fibre is prepared in Draft Effect.Technical scheme is as follows：
An embodiment of the present invention provides a kind of fiber preparation facilities, including hopper, high temperature screw rod, distribution cavity, flow generator,
Flow type calorifier, fumarole and spinneret orifice, it is characterised in that：
The hopper, the other end of the high temperature screw rod and the distribution cavity phase are provided with above one end of the high temperature screw rod
Even；The flow generator is provided with the flow type calorifier；The spinneret orifice is set to the lower end of the distribution cavity, and institute
State two fumaroles for being symmetrically arranged with that relative level is in predetermined angle at left and right sides of spinneret orifice；The flow generator leads to
It crosses described two fumaroles of two snorkels respectively with the distribution cavity lower end to be connected, the hopper passes through the high temperature
Screw rod connects in the distribution cavity body with the spinneret orifice；Alternation flow generator is additionally provided in the flow generator,
It is alternation air-flow that the alternation flow generator, which is used to that the flow generator to be made to pass through the air-flow variation that two fumaroles generate,；
The alternation flow generator includes cam follower, cam shaft, connecting rod, fixed link, moving stop and power and supplies
To device, wherein：
One end hollow out of the moving stop is provided with the venthole consistent with the snorkel caliber, and the one of the moving stop
One end with the connecting rod is held to be rotatably connected；
The other end of the connecting rod is rotatably connected with the fixed link, and the fixed link is fixedly installed on the cam follower
Table side, and the position of the fixed link is located at predetermined position on the radius of the cam follower；
The cam shaft is set to the predeterminated position of the flow generator bottom, the cam shaft and the cam follower
It is fixedly linked, and the position of the cam shaft is located at predetermined position on the radius of the cam follower；
The power supply device can be driven with the cam shaft to be connected, for providing the dynamic of rotation to the cam shaft
Power so as to which the cam follower be driven to be rotated centered on the cam shaft, and drives the moving stop in the horizontal direction
Left and right moves back and forth；
When being moved to the leftmost side, left side snorkel is blocked the moving stop by the moving stop, right side snorkel and institute
State the venthole connection of moving stop；For the moving stop when being moved to the rightmost side, right side snorkel is by the movement
Baffle blocks, and left side snorkel is not blocked by the moving stop.
In a preferred embodiment, the alternation flow generator further includes sliding slot, and the sliding slot is parallel to described
The moving direction of moving stop is set to the moving stop both sides, for ensureing that the moving stop moves in the horizontal direction.
In a preferred embodiment, the material of the cam follower is stainless steel material.
In a preferred embodiment, the preparation facilities further includes fiber and collects conveyer belt.
Compared with prior art, fiber preparation facilities provided by the invention has the following advantages：
By setting alternation flow generator so that when meltblown is used to prepare superfine fibre, air-flow occurs this preparation facilities
It is that leading drawing-off mode carries out drawing-off that device, which can generate alternation air-flow and pressure drag is carried out to polymer melt, so as to improve
Thinner superfine fibre is prepared in Draft Effect, is applicable to the multiple fields application such as medical material, filtering adsorbing material.
Description of the drawings
Attached drawing herein is incorporated into specification and forms the part of this specification, shows the implementation for meeting the present invention
Example, and in specification together principle for explaining the present invention.
Fig. 1 is a kind of schematic device of existing ultrafine fiber preparation device.
Fig. 2 is a kind of stress diagram of fiber in airflow field.
Fig. 3 be under equal conditions fiber by pressure drag and the stress relation schematic diagram of frictional resistance.
Fig. 4 is the schematic device according to a kind of fiber preparation facilities shown in an exemplary embodiment.
Fig. 5 is the status diagram according to a kind of power supply device shown in an exemplary embodiment.
Fig. 6 is the status diagram according to another power supply device shown in an exemplary embodiment.
Fig. 7 is the track mechanical simulation figure that polymer melt stretches in a kind of mechanical model.
Fig. 8 is the variation diagram of fibre diameter that a kind of mechanical simulation result obtains.
Specific embodiment
Below in conjunction with specific embodiment（But it is not limited to illustrated embodiment) it is of the invention with attached drawing detailed description, the present embodiment
Only for illustrating the present invention, the scope of the present invention should not be limited by the examples specific method, and the present invention can make various in the application
The modification and variation of form and structure, these are similarly in the present patent application right based on the equivalent form on the basis of the present invention will
Seek protection domain.
The process that inventor prepares existing ultrafine fiber preparation device shown in FIG. 1 using meltblown fiber is studied
It was found that two strands of air-flows in existing melt-blown process are supplied by a wind turbine is unified, i.e., two strands of left and right air-flow is continuous and symmetrical, fine
That dimension is subject to is frictional resistance FpEffect, is found by force analysis, under equal conditions, pressure drag FNThe drawing-off of fiber is imitated
Rate is frictional resistance FpMany times, as shown in figure 3, being prepared it illustrates existing ultrafine fiber preparation device using meltblown fine
During dimension, fiber is by pressure drag F under equal conditionsNWith frictional resistance FpStress relation schematic diagram.
In order to more preferably utilize pressure drag FNDrawing-off is carried out to fiber, it is that two strands of left and right air-flows alternately blow and spray that the present invention, which uses,
Air-flow blow and spray mode, fiber is caused with this（Polymer melt）Drawing-off acted on by pressure drag, realization efficiently lead
It stretches.
Fig. 4 is according to a kind of schematic device of fiber preparation facilities shown in an exemplary embodiment, which prepares
Device includes hopper 10, high temperature screw rod 20, distribution cavity 30, flow generator 40, flow type calorifier 50, fumarole 60 and spinneret
Hole 70.
Be provided with the hopper 10 above one end of the high temperature screw rod 20, the other end of the high temperature screw rod 20 with it is described
Cavity 30 is distributed to be connected；The flow generator 40 is provided with the flow type calorifier 50；The spinneret orifice 70 is set to described
The lower end of cavity 30 is distributed, and the left and right sides of the spinneret orifice 70 is symmetrically arranged with two that relative level is in predetermined angle
Fumarole 60；The flow generator 40 passes through the described two sprays with 30 lower end of the distribution cavity respectively of two snorkels 90
Stomata 60 is connected, and the hopper 10 is connected by the high temperature screw rod 20 in the distribution cavity 30 with the spinneret orifice 70
It is logical；Alternation flow generator 80 is additionally provided in the flow generator 50, the alternation flow generator 80 is described for making
The air-flow variation that flow generator 40 is generated by two fumaroles 60 is alternation air-flow.
It should be noted that pressure gauge or flow can also be set on flow generator 50 (flow generator should be 40)
Table, for detecting or controlling the circulation of flow generator interior air-flow.
In embodiments of the present invention, the alternation flow generator 80 includes cam follower 81, cam shaft 82, connecting rod
83rd, fixed link 84, moving stop 85 and power supply device 86, wherein：
One end hollow out of the moving stop 85 is provided with the venthole 87 consistent with 90 caliber of snorkel, the mobile gear
One end of plate 85 and one end of the connecting rod 83 are rotatably connected；
The other end of the connecting rod 83 is rotatably connected with the fixed link 84, and the fixed link 84 is fixedly installed on described convex
81 table side of rotor is taken turns, and the position of the fixed link 84 is located at predetermined position on the radius of the cam follower 81；
The cam shaft 82 is set to the predeterminated position of 40 bottom of flow generator, the cam shaft 82 with it is described convex
Wheel rotor 81 is fixedly linked, and the position of the cam shaft 82 is located at predetermined position on the radius of the cam follower 81；
The power supply device 86 can be driven with the cam shaft 82 to be connected, for providing rotation to the cam shaft 82
Power, so as to which the cam follower 81 be driven to be rotated centered on the cam shaft 82, and drive the moving stop 85
Left and right moves back and forth in the horizontal direction；
When being moved to the leftmost side, left side snorkel 90 is blocked the moving stop 85 by the moving stop 85, right side ventilation
Pipe 90 is connected with the venthole 87 of the moving stop 85；When being moved to the rightmost side, right side leads to the moving stop 85
Tracheae 90 is blocked by the moving stop 85, and left side snorkel 90 is not blocked by the moving stop 85.
In a feasible embodiment, power supply device 86 can be external electro-motor.
Optionally, the alternation flow generator 80 further includes sliding slot 88, and the sliding slot 88 is parallel to the moving stop
85 moving direction is set to 85 both sides of moving stop, for ensureing that the moving stop 85 moves in the horizontal direction.
Optionally, the material of the cam follower 81 is stainless steel material.
Stainless steel material is comparatively heat-resisting, and is conveniently replaceable, and cost is relatively low.
Optionally, the preparation facilities further includes fiber and collects conveyer belt.
Fiber collects the underface that conveyer belt is located at spinneret orifice 70, for collecting the superfine fibre that drawing-off obtains.
During fiber preparation facilities provided in this embodiment is used to prepare superfine fibre, staff first starts gas
Flow-generator 40, flow generator 40 is under the heating effect of flow type calorifier 50 to two fumaroles of 30 lower end of distribution cavity
60 conveying high-temperature gas, the high-temperature gas before by snorkel 90, moving stop 85 under the gearing of cam follower 81,
Make left and right in the horizontal direction to move back and forth.As shown in figure 5, in the status diagram of power supply device shown in Fig. 5, it is described
Moving stop 85 is moved to the leftmost side, at this point, left side snorkel 90 is blocked by the moving stop, right side snorkel 90 with it is described
The venthole 87 of moving stop 85 connects；As shown in fig. 6, in the status diagram of power supply device shown in Fig. 6,
Moving stop 85 is moved to the rightmost side, at this point, right side snorkel 90 is blocked by the moving stop 85, left side snorkel 90 not by
The moving stop blocks.Moving stop 85 periodically replaces the situation of Fig. 5 and Fig. 6 under the action of cam follower 81, so as to
So that the unidirectional high-temperature gas that flow generator 40 generates is after 80s by the ventilation of left and right two into alternation flow generator
The air-flow variation that pipe 90 exports is alternation air-flow.
Then, staff is by material（That is polymer）Hopper 10 is sent into, material is from hopper 10 after high temperature screw rod 20
It is melted as polymer melt, and enters distribution cavity body 30, sprayed by the spinneret orifice 70 for distributing 30 lower section of cavity.
Polymer melt from spinneret orifice 70 spray while, left and right two snorkels 90 to the left and right fumarole 60 export friendship
Become the efficient drawing-off based on the polymer melt progress pressure drag that air-flow alternately sprays spinneret orifice 70, so as to be prepared compared with
Thin superfine fibre.
In order to preferably verify pressure drag F in real processNThe drawing-off of fiber in melt blown process is acted on, inventor's profit
With mechanical model in preparation facilities provided by the invention by the stretching introducing portion pressure drag F of polymer meltNEffect.
Wherein, mechanical model is obtained by Lagrangian method " pearl-chain " model, and polymer melt stretches in mechanical model
Track mechanical simulation figure is as shown in fig. 7, the variation for the fibre diameter that mechanical simulation result obtains is as shown in Figure 8.In fig. 8, " nothing
Disturbance " refers to simulating polymer melt only by frictional resistance FpObtained variation in fiber diameter is acted on, i.e. conventional meltblown is led
Stretch mode." having disturbance " refers in drawing process, adds pressure drag FNEffect.
Fig. 8 is demonstrated in melt blown process, if not having pressure drag FNEffect, obtained fibre diameter can there are one again
Increased process, this is unfavorable for melt-blown product（It is more thinner better to be meltblown product requirement fineness）.But add in interaction air-flow
The pressure drag F blowed and sprayedNAfterwards, the diameter of polymer melt persistently reduces.This is exactly that melt-blown process is required.
In conclusion fiber preparation facilities provided by the invention is by setting alternation flow generator so that this preparation fills
It puts when meltblown is used to prepare superfine fibre, flow generator can generate alternation air-flow and carry out pressure difference resistance to polymer melt
Power is that leading drawing-off mode carries out drawing-off, and by the linear stretch of conventional meltblown, the interaction for becoming alternation air-flow stretches so that fine
Dimension is acted on by apparent pressure drag drawing-off, and so as to improve Draft Effect, thinner superfine fibre is prepared, applicable
In the multiple fields application such as medical material, filtering adsorbing material.
Although having used general explanation, specific embodiment and experiment above, the present invention is described in detail,
But on the basis of the present invention, can it be modified or be improved, this will be apparent to those skilled in the art.Cause
This, these modifications or improvements, belong to the scope of protection of present invention without departing from theon the basis of the spirit of the present invention.
Those skilled in the art will readily occur to the other of the present invention after the invention of specification and practice here is considered
Embodiment.The present invention is directed to cover the present invention any variations, uses, or adaptations, these modifications, purposes or
Adaptive change follow the general principle of the present invention and including undocumented common knowledge in the art of the invention or
Conventional techniques.It should be understood that the invention is not limited in the accurate knots for being described above and being shown in the drawings
Structure, and various modifications and changes may be made without departing from the scope thereof.
Claims (4)
1. a kind of fiber preparation facilities, including hopper, high temperature screw rod, distribution cavity, flow generator, flow type calorifier, jet
Hole and spinneret orifice, it is characterised in that：
The hopper, the other end of the high temperature screw rod and the distribution cavity phase are provided with above one end of the high temperature screw rod
Even；The flow generator is provided with the flow type calorifier；The spinneret orifice is set to the lower end of the distribution cavity, and institute
State the described two fumaroles for being symmetrically arranged with that relative level is in predetermined angle at left and right sides of spinneret orifice；The air-flow occurs
Device is connected by described two fumaroles of two snorkels respectively with the distribution cavity lower end, and the hopper passes through described
High temperature screw rod connects in the distribution cavity body with the spinneret orifice；The generation of alternation air-flow is additionally provided in the flow generator
Device, it is alternation gas that the alternation flow generator, which is used to that the flow generator to be made to pass through the air-flow variation that two fumaroles generate,
Stream；
The alternation flow generator includes cam follower, cam shaft, connecting rod, fixed link, moving stop and power and supplies
To device, wherein：
One end hollow out of the moving stop is provided with the venthole consistent with the snorkel caliber, and the one of the moving stop
One end with the connecting rod is held to be rotatably connected；
The other end of the connecting rod is rotatably connected with the fixed link, and the fixed link is fixedly installed on the cam follower
Table side, and the position of the fixed link is located at predetermined position on the radius of the cam follower；
The cam shaft is set to the predeterminated position of the flow generator bottom, the cam shaft and the cam follower
It is fixedly linked, and the position of the cam shaft is located at predetermined position on the radius of the cam follower；
The power supply device can be driven with the cam shaft to be connected, for providing the dynamic of rotation to the cam shaft
Power so as to which the cam follower be driven to be rotated centered on the cam shaft, and drives the moving stop in the horizontal direction
Left and right moves back and forth；
When being moved to the leftmost side, left side snorkel is blocked the moving stop by the moving stop, right side snorkel and institute
State the venthole connection of moving stop；For the moving stop when being moved to the rightmost side, right side snorkel is by the movement
Baffle blocks, and left side snorkel is not blocked by the moving stop.
2. the apparatus according to claim 1, which is characterized in that the alternation flow generator further includes sliding slot, the cunning
The moving direction that slot is parallel to the moving stop is set to the moving stop both sides, for ensureing the moving stop along water
Square to movement.
3. the apparatus according to claim 1, which is characterized in that the material of the cam follower is stainless steel material.
4. the apparatus according to claim 1, which is characterized in that the preparation facilities further includes fiber and collects conveyer belt.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711385642.8A CN108166085B (en) | 2017-12-20 | 2017-12-20 | Fiber preparation device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711385642.8A CN108166085B (en) | 2017-12-20 | 2017-12-20 | Fiber preparation device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108166085A true CN108166085A (en) | 2018-06-15 |
| CN108166085B CN108166085B (en) | 2020-04-24 |
Family
ID=62523054
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711385642.8A Active CN108166085B (en) | 2017-12-20 | 2017-12-20 | Fiber preparation device |
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| Country | Link |
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| CN (1) | CN108166085B (en) |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3755527A (en) * | 1969-10-09 | 1973-08-28 | Exxon Research Engineering Co | Process for producing melt blown nonwoven synthetic polymer mat having high tear resistance |
| US5100435A (en) * | 1990-12-04 | 1992-03-31 | Kimberly-Clark Corporation | Meltblown nonwoven webs made from epoxy/pcl blends |
| US5523033A (en) * | 1993-12-08 | 1996-06-04 | The Board Of Regents Of The University Of Oklahoma | Polymer processing using pulsating fluidic flow |
| CN103451754A (en) * | 2013-09-22 | 2013-12-18 | 北京化工大学 | Differential melt electro-blowing spinning device and technology for preparing nanofibers in batches |
| CN203593813U (en) * | 2013-12-10 | 2014-05-14 | 上海工程技术大学 | Die head device for preparing micro-nano fibers |
| CN204825269U (en) * | 2015-06-26 | 2015-12-02 | 上海工程技术大学 | Little nanofiber's of production liquid spouts non -woven spinning equipment's reversal fluidic generator |
| CN105369365A (en) * | 2015-12-02 | 2016-03-02 | 苏州大学 | Melt-blow nozzle structure for fiber preparation |
| CN206553659U (en) * | 2017-03-16 | 2017-10-13 | 上海工程技术大学 | A kind of asymmetric double flute experiment die head |
-
2017
- 2017-12-20 CN CN201711385642.8A patent/CN108166085B/en active Active
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3755527A (en) * | 1969-10-09 | 1973-08-28 | Exxon Research Engineering Co | Process for producing melt blown nonwoven synthetic polymer mat having high tear resistance |
| US5100435A (en) * | 1990-12-04 | 1992-03-31 | Kimberly-Clark Corporation | Meltblown nonwoven webs made from epoxy/pcl blends |
| US5523033A (en) * | 1993-12-08 | 1996-06-04 | The Board Of Regents Of The University Of Oklahoma | Polymer processing using pulsating fluidic flow |
| CN103451754A (en) * | 2013-09-22 | 2013-12-18 | 北京化工大学 | Differential melt electro-blowing spinning device and technology for preparing nanofibers in batches |
| CN203593813U (en) * | 2013-12-10 | 2014-05-14 | 上海工程技术大学 | Die head device for preparing micro-nano fibers |
| CN204825269U (en) * | 2015-06-26 | 2015-12-02 | 上海工程技术大学 | Little nanofiber's of production liquid spouts non -woven spinning equipment's reversal fluidic generator |
| CN105369365A (en) * | 2015-12-02 | 2016-03-02 | 苏州大学 | Melt-blow nozzle structure for fiber preparation |
| CN206553659U (en) * | 2017-03-16 | 2017-10-13 | 上海工程技术大学 | A kind of asymmetric double flute experiment die head |
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|---|---|
| CN108166085B (en) | 2020-04-24 |
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