CN209162258U - A kind of nozzle and the flash method spinning equipment equipped with the nozzle - Google Patents
A kind of nozzle and the flash method spinning equipment equipped with the nozzle Download PDFInfo
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- CN209162258U CN209162258U CN201821501901.9U CN201821501901U CN209162258U CN 209162258 U CN209162258 U CN 209162258U CN 201821501901 U CN201821501901 U CN 201821501901U CN 209162258 U CN209162258 U CN 209162258U
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Abstract
The utility model provides a kind of nozzle, including cylindrical spray orifice and tubaeform path, cylindrical spray orifice are connected with tubaeform path, further includes cylindrical path, and cylindrical spray orifice, tubaeform path and cylindrical path are sequentially connected；When nozzle sprays fluid, fluid passes sequentially through cylindrical spray orifice, tubaeform path and cylindrical path.A kind of flash method spinning equipment equipped with the nozzle is also provided.Nozzle provided by the utility model can equably improve fibre bundle that nozzle ejects in the width of the single layer fibre mesh sheet formed after the reflection of pendulum wire disk, and the width of single layer fibre mesh sheet is wider, and the probability that winding occurs in fiber in mesh sheet is lower.
Description
Technical field
The utility model belongs to the technical field of non-woven fabrics, and polymer solution is passed through flash method particularly with regard to a kind of
Spinneret nozzle into the net and flash method spinning equipment equipped with the nozzle.
Background technique
Flash method spinneret net-forming technology be by DuPont Corporation eighties of last century sixties utility model a skill
Art, it is to be ejected into normal temperature and pressure from spinneret orifice by the way that polymer and solvent are mixed into solution in the environment of high temperature and pressure
In environment, solvent from liquid phase at high temperature under high pressure, to normal temperature and pressure environment when evaporate rapidly, polymer passes through spinneret orifice
Extruding, drawing-off, scattering are formed the fibre bundle for containing many superfine fibres, and fibre bundle is ejected on pendulum wire disk, pendulum wire
Disk, which has the function of reflecting fibre bundle, diverges to a mesh-like structure, and flaky web can be swung laying and existed
On one mobile lace curtaining, one layer of web with certain grammes per square metre and width is formed；Fiber mat drops to shifting from pendulum wire disk
During dynamic lace curtaining, can be by an electrostatic amplifier or air amplifier, the effect of this amplifier by fiber mat into
One step widens, and reduces the intermeshing ratio of fiber, can reduce and the ratio of simultaneously silk occurs in finished product because fiber is wound.This
Fiber web layer again by the effect of the calendering of later process, heat bonding etc., be formed one have light, tough, tear-proof,
The extraordinary sheeting of the advantages that waterproof and breathable.Therefore, in the art, spinneret equipment, which has been largely fixed, ejects
Fiber quality, and then influence the quality of final finished；And the core component that nozzle is equipped as spinneret, structure design
On difference, directly influence the difference of final finished.
In the nozzle design in existing flash method spinneret net-forming technology, there is individual cylinder design, i.e. spray orifice is
One cylindrical body；There are flare design, the i.e. loudspeaker of for example same opening of spray orifice；Also cylindrical and tubaeform combination sets
Meter.Since the Major Difficulties of flash method spinneret net-forming technology are how to ensure the filametntary performance of ejection and the fiber of formation
The uniformity of net, therefore, the design of nozzle are always the project of relevant manufacturers emphasis research and development.
Utility model content
The purpose of the utility model is to overcome above-mentioned defect existing in the prior art, the utility model provides one kind
For by polymer solution from the nozzle being ejected into the pressure-reducing chamber in flash method spinning equipment on pendulum wire disk, using following technology
Scheme:
A kind of nozzle, including cylindrical spray orifice and tubaeform path, the cylinder spray orifice are connected with tubaeform path, also
Including cylindrical path, the cylinder spray orifice, the tubaeform path and the cylindrical path are sequentially connected；The nozzle
When spraying fluid, the fluid passes sequentially through the cylindrical spray orifice, the tubaeform path and the cylindrical path.
Preferably, the cylindrical spray orifice, the tubaeform path and the cylindrical path are coaxial.
Preferably, the tubaeform path includes slot end, and the diameter of the cylinder spray orifice is D1, the slot end
Diameter is D2, and D2 >=4D1.
Preferably, the tubaeform path further includes wide mouth end, and the slot end is connect with the cylindrical spray orifice, described
Wide mouth end connect with the cylindrical path, and the diameter in the diameter of the wide mouth end and the cylinder path is D3, and D3
> D2.
Preferably, the angular aperture in the tubaeform path is A1, and 10 °≤A1≤35 °.
Preferably, the length in the tubaeform path is L2, and the length in the cylinder path is L3, and 0.5L2≤L3
≤1.5L2。
The utility model also provides a kind of flash method spinning equipment, using following technical scheme:
A kind of flash method spinning equipment further includes above-mentioned nozzle.
Preferably, the flash method spinning equipment further includes pressure-reducing chamber and pendulum wire disk, and the nozzle is mounted on described subtract
Solution is ejected on the pendulum wire disk by pressure chamber, the nozzle.
Content according to the present utility model can equably improve nozzle injection using the new type nozzle of the utility model
Fibre bundle out is got in the width of single layer fibre mesh sheet formed after the reflection of pendulum wire disk, the width of single layer fibre mesh sheet
Width, the probability that winding occurs in fiber in mesh sheet is lower, and therefore, the light transmission of the fiber web layer formed by fiber mat laying is uniform
It spends all right, occurs and the phenomenon that silk is fewer, the uniformity for the product being thus made is better.Meanwhile fiber mat is not
Can be wide, because of superfine fibre limited amount in fiber mat, if fiber mat is wide, it is likely that there is big crack,
Also it is unfavorable for the raising of the finished product uniformity.
It should be understood that foregoing general description and following detailed description are all exemplary, and it is intended to mention
For the further explanation of claimed technology.
Detailed description of the invention
The utility model embodiment is described in more detail in conjunction with the accompanying drawings, the utility model above-mentioned and its
Its purpose, feature and advantage will be apparent.Attached drawing is used to provide to further understand the utility model embodiment, and
And part of specification is constituted, it is used to explain the utility model together with the utility model embodiment, not constitute to this reality
With novel limitation.Unless explicitly stated otherwise, otherwise attached drawing is not considered as drawn to scale.In the accompanying drawings, identical reference label
Typically represent same components or step.In the accompanying drawings:
Fig. 1 is a kind of structural schematic diagram of flash method spinning equipment preferred embodiment provided by the utility model；
Fig. 2 is a kind of schematic cross-section of nozzle preferred embodiment provided by the utility model；
A kind of Fig. 3 structural schematic diagram of nozzle preferred embodiment provided by the utility model；
In figure: 1- flash method spinning equipment；2- nozzle；3- fibre bundle；4- fiber mat；5- fiber web layer；6-
Reaction kettle；The pressure-reducing chamber 7-；8- pendulum wire disk；9- air amplifier；10- moves lace curtaining；I- cylinder spray orifice；II- loudspeaker
Shape path；III- cylinder path；
The diameter of cylindrical spray orifice is identified as D1；The length mark of cylindrical spray orifice is L1；The minimum in tubaeform path is straight
Diameter is identified as D2；The maximum gauge in tubaeform path is identified as D3；The length mark in tubaeform path is L2；Tubaeform path
Opening angle is identified as A1；The diameter in cylindrical path is identical as the maximum gauge in tubaeform path, is identified as D3；Cylindrical river in Zhejiang Province
The length mark in road is L3, and the direction of arrow A is the flow direction of solution.
Specific embodiment
In order to enable the purpose of this utility model, technical solution and advantage become apparent, retouch in detail below with reference to accompanying drawings
State example embodiment according to the present utility model.Obviously, described embodiment is only that a part of the utility model is implemented
Example, rather than the whole embodiments of the utility model, it should be appreciated that the utility model is not by the limit of example embodiment described herein
System.Based on embodiment described herein, those skilled in the art are obtained in the case where not making the creative labor
All other embodiment should all be fallen within the protection scope of the utility model.In the present description and drawings, it will use identical
Appended drawing reference indicate substantially the same element and function, and duplicate explanation to these elements and function will be omitted.This
Outside, for clarity and brevity, it is convenient to omit for the explanation of function and construction known in the art.
For nozzle provided by the utility model for spraying fluid, which is not limited to water, solution (such as polymer), may be used also
To be fuel oil (such as gasoline, diesel oil etc.), gas (such as air, oxygen, nitrogen etc.) can also be.The utility model was with should
For nozzle is mounted in flash method spinning equipment, schematically illustrated for spraying solution.
As shown in Fig. 2 (in conjunction with Fig. 1, Fig. 3), the utility model provides a kind of nozzle 2, including cylindrical spray orifice I and loudspeaker
Shape path II, the cylinder spray orifice I are connected with tubaeform path II, further include cylindrical path III, the cylinder spray orifice
I, the tubaeform path II and the cylinder path III are sequentially connected；When the nozzle 2 sprays fluid, the fluid according to
It is secondary to pass through the cylindrical spray orifice I, the tubaeform path II and the cylinder path III.Spray provided by the utility model
Mouth has the three stage structure being made of the cylindrical spray orifice I, the tubaeform path II and the cylinder path III,
When the nozzle is used in flash method spinning equipment 1, the solution that polymer is formed after being dissolved passes through three under high pressure effect
After segmentation structure, it is ejected.Due to the effect of high pressure and extruding, drawing-off, the scattering of nozzle 2, the polymer ejected is just
Form the fibre bundle 3 for containing many superfine fibres.Using nozzle provided by the utility model, nozzle can be improved and eject
The fibre bundle 3 come is in the width of single layer fibre mesh sheet 4 formed after the reflection of pendulum wire disk 8, to promote laying in mobile network
The uniformity of fiber web layer 5 on curtain 10.
The cylinder spray orifice I, the tubaeform path II and the cylinder path III are coaxial, and three preferably uses
Coaxial structure, can make according to this structure injection it is more smooth and injection resistance it is small.Technical solution according to the present utility model,
It is contemplated that three can also be out-of-alignment, or only wherein the two is coaxial.
The tubaeform path II includes slot end, and the diameter of the cylinder spray orifice I is D1, the diameter at the slot end
For D2, the tubaeform path II further includes wide mouth end, and the slot end is connect with the cylinder spray orifice I, the wide mouth end
Connect with the cylinder path III, in conjunction with Fig. 2, the cross section in the tubaeform path be it is trapezoidal, wherein a trapezoidal bottom edge
As slot end, another bottom edge are wide mouth end, it is preferable that it is above-mentioned it is trapezoidal be isosceles trapezoid, can make solution injection more evenly.
The diameter D2 at the slot end preferably satisfies D2 >=4D1, preferably not less than the diameter D1 of the cylindrical spray orifice I
5D1≤D2≤6D1.Solution sprays from the lesser cylinder spray orifice I of diameter, is diffused into the slot end being relatively large in diameter,
Increase projected area.
The diameter of the diameter of the wide mouth end and the cylinder path III are D3, and are met: D3 > D2, in conjunction with figure
2, i.e., a trapezoidal bottom edge length is greater than the length on another bottom edge.Technical solution according to the present utility model, is readily apparent that
, the diameter of the diameter of the wide mouth end and the cylinder path III can with difference, such as the former be greater than the latter or
Person the latter is greater than the former.
The angular aperture in the tubaeform path is A1 (in conjunction with Fig. 2), and is met: 10 °≤A1≤35 °, it is preferable that preferably 15 °
≤A1≤20°。
The length of the cylinder spray orifice III is L1, and the length of the tubaeform path II is L2, the cylinder path
The length of III is L3, and is met: 0.5L2≤L3≤1.5L2, preferably 0.9L2≤L3≤1.2L2.
During the experiment, it is found by the applicant that each structure in nozzle (such as: cylindrical spray orifice I, tubaeform path II and circle
Cylindricality path III) size between have a very close connection, and whether the size of each structure for can networking and networking after injection
The uniformity, width have very big relationship.In technical solutions of the utility model, by the preferred size of above-mentioned design, injection
The quality of the fiber formed afterwards, the uniformity of fiber mat and width, formation the transmission uniformity of fiber web layer can reach
Preferable state.
In order to show influence of the new type nozzle of the utility model to formed web and finished product, selected from a kind of tradition
Nozzle compared with nozzle provided by the utility model, pass through the observation of appearance and the test pair of product correlation performance parameters
Than to determine the performance of nozzle provided by the utility model.Wherein, test conventional spout contains only cylindrical spray orifice and tubaeform
The combination in path.
The polymer that applicant selects is polyethylene mixture, and solvent is dichloromethane mixture, and the concentration of polymer is
15%.Test result is as follows shown in table 1:
Subordinate list 1
By table 1 as a result, it has been found that, using nozzle provided by the utility model, the tension failure of obtained fibre bundle is strong
Degree is obviously improved, and averagely promotes amplitude close to 20%；The finite width of fiber mat is also obviously improved.To embody fiber
Netting width increases the influence to the uniformity for being formed by fiber web layer, passes through the production after translumination observation fiber web layer cold rolling
Product, for comparing difference of the finished product in the uniformity.
It uses in table 1 and numbers as the light transmission figure after fiber web layer cold rolling obtained by 1 conventional spout；Using being compiled in table 1
Light transmission figure obtained by new type nozzle number for 3 after fiber web layer cold rolling；Compare above-mentioned two light transmission figure, the former " black line
Item " is more than the latter in quantity and length, becomes apparent from, and " black line " is characterized as the doubling phenomena in a kind of degree；And
In whole uniformity, the latter will be substantially better than the former.
As shown in Figure 1, being a kind of structural schematic diagram of flash method spinning equipment preferred embodiment provided by the utility model.
The flash method spinning equipment 1 includes nozzle 2, fibre bundle 3, fiber mat 4, fiber web layer 5, reaction kettle 6, pressure-reducing chamber 7, pendulum wire
Disk 8, air amplifier 9, mobile lace curtaining 10, under use state, polymer solvent matched with its is added by the direction for illustrating A
It is mixed in reaction kettle 6, polyolefin can be used in the polymer, such as linear high-density polyethylene, polypropylene and poly- first
Base amylene etc., is high temperature and high pressure environment in reaction kettle 6, and polymer is molten by the solvent institute in liquid phase under conditions of high temperature and pressure
Solution, for dissolved solution by pressure-reducing chamber 7, the nozzle 2 is installed in the outlet in pressure-reducing chamber 7, and solution passes sequentially through described new
The cylindrical spinneret orifice of type nozzle, tubaeform path, cylindrical path, are ejected on pendulum wire disk 8；Since solvent is from hot environment
Evaporated rapidly under to normal temperature environment, the polymer under dissolved state since the evaporation of solvent and the reduction of temperature solidify rapidly, by
In the effect of high pressure and extruding, drawing-off, the scattering of nozzle, the polymer ejected just forms one and contains many superfine fibres
Fibre bundle 3, fibre bundle 3 are ejected on pendulum wire disk 8, since the refraction and swing of pendulum wire disk act on, fibre bundle 3 are reflected and is dissipated
It is in the fiber mat 4 of mesh-like structure at one, and the round-trip laying of fiber mat 4 is existed by the quick rotary oscillation of pendulum wire disk 8
On the mobile lace curtaining 10 of 8 lower section of pendulum wire disk；Fiber mat 4 can initially pass through air amplifier before dropping to mobile lace curtaining 10
9, fiber mat 4 is further widened and reduces the intermeshing ratio of fiber by purpose；Due to swinging for fiber mat 4
Direction is vertical with the mobile direction of advance of lace curtaining 10, and the just quick laying on moving lace curtaining 10 of fiber mat 4 forms a piece of tool
There is the fiber web layer 5 of certain grammes per square metre and width, mobile lace curtaining 10 advances along the direction of diagram C, before fiber web layer 5 is transmitted
Into by cold rolling, winding, into next process.
Nozzle provided by the utility model make injection after formed the quality of fiber, the uniformity of fiber mat and width,
The transmission uniformity of the fiber web layer of formation can reach preferable state.It can equably be mentioned using the nozzle of the utility model
Width of the fibre bundle that high nozzle ejects in the single layer fibre mesh sheet formed after the reflection of pendulum wire disk, single layer fibre mesh sheet
Width it is wider, the probability that winding occurs in fiber in mesh sheet is lower, therefore, the fiber web layer formed by fiber mat laying
The phenomenon that transmission uniformity is all right, simultaneously silk occurs is fewer, and the uniformity for the product being thus made is better.Meanwhile it is fine
Tieing up mesh sheet cannot be wide, because of superfine fibre limited amount in fiber mat, if fiber mat is wide, it is likely that occurs big
Crack, be also unfavorable for the raising of the finished product uniformity.
Specifically, those skilled in the art can select the specific component with principle according to the present utility model
Property setting, as long as can be realized the principle of the control method of the utility model.
It should be noted that purpose of the term as used in this specification merely for description particular implementation, rather than
It is intended to limit the utility model.Unless the context clearly indicates otherwise, otherwise singular as used herein
" one ", "one" and "the" be also intended to including plural form.The terms "include", "comprise" or its any other variant are intended to
Cover non-exclusive inclusion, so that the process, method, article or equipment for including a series of elements not only includes those
Element, but also including other elements that are not explicitly listed, or further include for this process, method, article or setting
Standby intrinsic element.In the absence of more restrictions, the element limited by sentence " including ... ", it is not excluded that wrapping
Include in the process, method, article or equipment of the element that there is also other identical elements.
Those skilled in the art should understand that: the above various embodiments is only to illustrate the technical side of the utility model
Case, rather than its limitations；Although the present invention has been described in detail with reference to the aforementioned embodiments, but the skill of this field
Art personnel are possible to modify the technical solutions described in the foregoing embodiments, or special to some or all of technologies
Sign is equivalently replaced；And these are modified or replaceed, the utility model right that it does not separate the essence of the corresponding technical solution
The range of claim.
Claims (8)
1. a kind of nozzle, including cylindrical spray orifice and tubaeform path, the cylinder spray orifice is connected with tubaeform path, special
Sign is: it further include cylindrical path, the cylinder spray orifice, the tubaeform path and the cylindrical path successively phase
Even；When the nozzle injection fluid, the fluid passes sequentially through the cylindrical spray orifice, the tubaeform path and the cylinder
Shape path.
2. nozzle according to claim 1, it is characterised in that: the cylinder spray orifice, the tubaeform path and described
Cylindrical path is coaxial.
3. nozzle according to claim 1, it is characterised in that: the tubaeform path includes slot end, the cylinder
The diameter of spray orifice is D1, and the diameter at the slot end is D2, and D2 >=4D1.
4. nozzle according to claim 3, it is characterised in that: the tubaeform path further includes wide mouth end, the slot
End is connect with the cylindrical spray orifice, and the wide mouth end is connect with the cylinder path, the diameter of the wide mouth end and described
The diameter in cylindrical path is D3, and D3 > D2.
5. nozzle according to claim 1, it is characterised in that: the angular aperture in the tubaeform path is A1, and 10 °≤A1
≤35°。
6. nozzle according to claim 1, it is characterised in that: the length in the tubaeform path is L2, the cylinder
The length in path is L3, and 0.5L2≤L3≤1.5L2.
7. a kind of flash method spinning equipment, it is characterised in that: further include nozzle described in any one of claims 1-6.
8. flash method spinning equipment according to claim 7, it is characterised in that: it further include pressure-reducing chamber and pendulum wire disk, it is described
Nozzle is mounted on the pressure-reducing chamber, and solution is ejected on the pendulum wire disk by the nozzle.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821501901.9U CN209162258U (en) | 2018-09-14 | 2018-09-14 | A kind of nozzle and the flash method spinning equipment equipped with the nozzle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821501901.9U CN209162258U (en) | 2018-09-14 | 2018-09-14 | A kind of nozzle and the flash method spinning equipment equipped with the nozzle |
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| Publication Number | Publication Date |
|---|---|
| CN209162258U true CN209162258U (en) | 2019-07-26 |
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ID=67331220
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821501901.9U Active CN209162258U (en) | 2018-09-14 | 2018-09-14 | A kind of nozzle and the flash method spinning equipment equipped with the nozzle |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110904517A (en) * | 2018-09-14 | 2020-03-24 | 厦门当盛新材料有限公司 | Nozzle and flash evaporation spinning equipment with same |
| CN112011891A (en) * | 2020-09-08 | 2020-12-01 | 北京康烯科技创新研究有限公司 | Non-layered molybdenum nanosheet/graphene-based fiber membrane and preparation method thereof |
| CN115142142A (en) * | 2022-06-24 | 2022-10-04 | 厦门当盛新材料有限公司 | Spray head and flash spinning equipment with same |
| WO2023207293A1 (en) * | 2022-04-28 | 2023-11-02 | 上海迅江科技有限公司 | Enhancement-type combined flash evaporation/electrostatic spinning apparatus |
-
2018
- 2018-09-14 CN CN201821501901.9U patent/CN209162258U/en active Active
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110904517A (en) * | 2018-09-14 | 2020-03-24 | 厦门当盛新材料有限公司 | Nozzle and flash evaporation spinning equipment with same |
| CN112011891A (en) * | 2020-09-08 | 2020-12-01 | 北京康烯科技创新研究有限公司 | Non-layered molybdenum nanosheet/graphene-based fiber membrane and preparation method thereof |
| WO2023207293A1 (en) * | 2022-04-28 | 2023-11-02 | 上海迅江科技有限公司 | Enhancement-type combined flash evaporation/electrostatic spinning apparatus |
| CN115142142A (en) * | 2022-06-24 | 2022-10-04 | 厦门当盛新材料有限公司 | Spray head and flash spinning equipment with same |
| CN115142142B (en) * | 2022-06-24 | 2024-01-12 | 厦门当盛新材料有限公司 | Shower nozzle and be equipped with flash spinning equipment of this shower nozzle |
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of utility model: Nozzle and flashing method spinning equipment provided with same Effective date of registration: 20200622 Granted publication date: 20190726 Pledgee: China Everbright Bank Limited by Share Ltd. Xiamen branch Pledgor: XIAMEN DANGSHENG NEW MATERIALS Co.,Ltd. Registration number: Y2020980003329 |
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| PC01 | Cancellation of the registration of the contract for pledge of patent right |
Date of cancellation: 20210709 Granted publication date: 20190726 Pledgee: China Everbright Bank Limited by Share Ltd. Xiamen branch Pledgor: XIAMEN DANGSHENG NEW MATERIALS Co.,Ltd. Registration number: Y2020980003329 |
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| PC01 | Cancellation of the registration of the contract for pledge of patent right |