CN103046148B - A kind of micro Denier polyamide fibre preparation assembly that certainly boosts - Google Patents
A kind of micro Denier polyamide fibre preparation assembly that certainly boosts Download PDFInfo
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- CN103046148B CN103046148B CN201310028473.8A CN201310028473A CN103046148B CN 103046148 B CN103046148 B CN 103046148B CN 201310028473 A CN201310028473 A CN 201310028473A CN 103046148 B CN103046148 B CN 103046148B
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Abstract
The present invention relates to and provides a kind of micro Denier polyamide fibre preparation assembly that certainly boosts, comprise housing, the top cover of housing, the distribution network of enclosure interior and be positioned at the spinnerets of distribution network lower floor, between top cover to distribution network, be provided with that first crosses filter sand, filter, second crosses filter sand and spacer screen successively.Micro Denier polyamide fibre preparation provided by the invention filters the design of tissue gradient hierarchies with from boosting component internal, and be provided with corresponding filter between the layers, upper thin time of preserving gradient structure close, the strainability of stabilising arrangement, and the replacement cycle of extension fixture, enhance productivity, the AA increasing finished product leads.
Description
Technical field
The present invention relates to synthetic fiber filament field devices, be specifically related to a kind of micro Denier polyamide fibre preparation assembly that certainly boosts.
Background technology
Polyamide fibre micro Denier full-drawn yarn refers to the polyamide fibre full-drawn yarn of individual thread dawn number DPF below 1.0.The English FullyDrawnYarn of full-drawn yarn, is called for short FDY.The English full name of DPF is denierperfilament, and namely " DENIER " number of every root monofilament, is called for short: D or " dawn "." DENIER " describes the degree of the tow thickness of fiber.And the ultra-fine full-drawn yarn of polyamide fibre micro Denier cryogenic high pressure refers to that individual thread dawn number is less than 1.0D, total denier in the ultrafine wire FDY kind of below 20D.It because total denier is ultra-fine, soft, moisture pick-up properties is good, perspire is effective is widely used among slim underskirt fabric, Lingerie fabric and the various slim clothing fabric needing softness, moisture absorption and perspire effect.Just polyamide fibre micro Denier FDY have individual thread fine, be unable to undergo that external force is vulnerable to destroy, the ultra-fine again feature of total denier, make on existing polyamide fibre FDY production equipment machine, rely on traditional polyamide fibre FDY manufacturing technique method to be difficult to realize, frequent appearance winding end breakage rate is high, spinning cake cylinder is heavy little, the situations such as AA rate of grade is low, even if winding product out reluctantly, because the disconnected stock lousiness of its finished product is many, the powerful low requirements of weaving process that not only can not meet Warp Knitted Fabrics, also can not meet the requirement of common low speed footwear machine braiding.
Even if the assembly preparing polyamide fibre micro Denier full-drawn yarn traditionally increases from boosting assembly, because self-filtering sand assembly is single, or the design of its sand inner gradient is unreasonable, thus can not meet the requirement of existing high-quality polyamide fibre FDY finished product production technology.At present, general enterprises uses monocomponent filter sand mostly, and minority enterprise starts to arrange two components and crosses filter sand, but owing to not arranging middle spacer web.Cross filter sand and impact rear easily staggered vibration by pressurized melt, finally in disturbance state, progressive filter gradient close under tool not being dredged.This can cause filtration irregular, and causes the brute force of monofilament between tow uneven, can be reflected in the inconsistent of spinnerets ejection strand time on this is apparent; On the other hand, when not possessing or lose filter gradient very soon, can cause from the assembly chamber inner filtration that boosts unequal, indivedual local excessively filtration, impurity shutoff, cause spinneret orifice to block, have impact on from boosting assembly life-span, reducing production efficiency.
Summary of the invention
The object of this invention is to provide the preparation of a kind of micro Denier polyamide fibre with from boosting assembly, solving one or more in above-mentioned prior art problem.
According to an aspect of the present invention, provide a kind of micro Denier polyamide fibre preparation assembly that certainly boosts, the distribution network of housing, top cover, enclosure interior and be positioned at the spinnerets of distribution network lower floor, is provided with between top cover to distribution network that first crosses filter sand, filter, second crosses filter sand and spacer screen successively.
Micro Denier polyamide fibre preparation provided by the invention crosses the design of filter sand tissue gradient hierarchies with from boosting component internal, and be provided with corresponding filter between the layers, the strainability of Absorbable organic halogens device, the replacement cycle of extension fixture, enhance productivity, increase finished product AA and lead.
In some embodiments, top cover and first is crossed between filter sand and is provided with block, is provided with distribution plate between distribution network and spacer screen.Top cover and the first block crossed between filter sand can reduce the percussion entering and cross filter sand from the assembly melt that boosts to first.The melt that distribution plate can mixingly boost, reaches the effect of the gained melt of homogenizing and dispersion.
In some embodiments, spacer screen comprises supporting network and the metal nonwoven fabric of supporting network and second excessively between filter sand.Adopt metal nonwoven fabric can arrange finer and close mesh further, supporting network provides the support of above-mentioned metal nonwoven fabric, keeps the fine and closely woven of filtering accuracy, promotes spinning melt quality, enhances productivity.
In some embodiments, block adopts 30 to 50 object stainless (steel) wires, first crosses filter sand 5 adopts 40 to 60 object metal sands, filter adopts 50 to 60 object stainless (steel) wires, second crosses filter sand 6 adopts 60 to 80 object metal sands, the nominal pore of metal nonwoven fabric is 5 to 15 μm, and supporting network adopts 50 object stainless (steel) wires, and distribution network adopts 250 order stainless (steel) wires.In hierarchical design, on the basis that each layer gradient is clearly demarcated, provide the enforcement parameter of optimization, improve the quality of spinning melt, improve the top grade rate of polyamide fibre micro Denier full-drawn yarn further.
In some embodiments, between housing and top cover, be provided with sealing ring, ensure the No leakage compact siro spinning technology between housing and top cover, thus reduce the generation of assembly spillage phenomenon, the service life of assurance device.
To sum up, provided by the invention from boosting assembly, self-filtering sand organizes reasonable graduationization to design, and be provided with corresponding filter between the layers, and keep the fine and closely woven of filtering accuracy, the strainability of Absorbable organic halogens device, improve the melting effect from boosting assembly provided by the invention, promote spinning melt quality, increase finished product AA and lead; And the replacement cycle of extension fixture, enhance productivity.
Accompanying drawing explanation
Fig. 1 is the structural representation of micro Denier polyamide fibre preparation from boosting assembly in an embodiment of the present invention;
Fig. 2 is the comparison diagram of the initial pressure change curve in time of certainly the boost assembly of micro Denier polyamide fibre preparation from boosting assembly and prior art in an embodiment of the present invention.
Detailed description of the invention
Below in conjunction with Figure of description, the present invention is described in more detail.
As shown in Figure 1, the structural representation of micro Denier polyamide fibre preparation from boosting assembly in an embodiment of the present invention.Comprise cylindrical shell 1, the top cover 2 that housing 1 is provided with from top to bottom successively; 30 to 50 object stainless steel blocks 51; 40 to 60 orders first cross filter sand 5; 50 to 60 order stainless steel filters 52; Nominal pore is the metal nonwoven fabric 532 layers of 5 to 15 μm; The supporting network 531 of 50 order support metal nonwoven fabric 532; Distribution plate 54; 250 order stainless steel distribution network 3 and spinneretss 4.Sealing ring 11 is also provided with between housing 1 and top cover 2.
The sealing ring 11 be provided with between housing 1 and top cover 2.Ensure the No leakage compact siro spinning technology between housing and top cover, thus reduce the generation of assembly spillage phenomenon, thus the service life of assurance device.Block 51 can reduce melt and enter the percussion crossing filter sand 5 when boosting assembly to first.First mistake filter sand 5 and the second mistake filter sand 6 select irregular diamond-type metal sand.Filter 52 is separated first and is crossed filter sand 5 and second and cross filter sand 6, the inner reasonably functionally graded design of holding device, and provides first to cross filter sand 5 supporting role.Adopt metal nonwoven fabric 532 finer and close mesh can be set further, keep the fine and closely woven of filtering accuracy, promote spinning melt quality, enhance productivity.Supporting network 531 provides above-mentioned metal nonwoven fabric 532 to support.The melt that distribution plate can mixingly boost, reaches the effect of the gained melt of homogenizing and dispersion.
The micro Denier polyamide fibre preparation that the present embodiment provides filters the design of tissue gradient hierarchies with from component internal of boosting, and is provided with corresponding filter or supporting network between the layers, stablizing of assurance device gradient design.
Provided by the invention from the design of boosting component delamination, maintenance is dredged lower close gradient-structure gradient, improve the quality of spinning melt, significantly improve the top grade rate of polyamide fibre micro Denier full-drawn yarn.
Allow the melt of the ultra-fine full-drawn yarn of polyamide fibre micro Denier being obtained spinning high pressure (16000kPa during initial life cycle by " instantaneously " of this assembly from the object of boosting assembly apparatus, 22000kPa during end life cycle), both this melt screw rod had before this been avoided, the molecular weight degradation that causes of high temperature for a long time in pipeline and casing, " instantaneously " of melt before extruding as-spun fibre is made again to obtain energy, obtained high-quality as-spun fibre, and this melt easily makes again melt even from being mixed by flowing fast under high-pressure situations, ensure that the even of as-spun fibre inherent quality, stable, the fiber irregularity generated is low, bar makes a good job of, even dyeing brute force is high.
For the effect from boosting assembly provided by the invention of testing and assessing further, for specification " polyamide fibre 9D/10F micro Denier ultra-fine FDY finished silk " preparation technology: by dry sliced for polyamide fibre raw material, the screw rod melting plant controlled through low temperature (246 DEG C to 252 DEG C) becomes melt, this melt enters 252 DEG C of casings to 256 DEG C of low temperature controls (boiling point is the low temperature biphenyl-biphenyl ether gas system of 244 DEG C) again and becomes low-temperature melt, this low-temperature melt is by the melt high pressure obtaining 16000kPa (initial life cycle pressure) to 22000kPa (terminating life cycle pressure) from boosting assembly of special formula Design, this pressurized melt is extruded after after spinnerets 4 and is formed as-spun fibre, lateral blowing cooling forming is entered after this as-spun fibre is introduced into " 100mm slow cooling district ", again after atomizer oils and naturally cools through the path of 2 to 3 meters after 0.5 to 1.2%, realized the drawing-off of 1.10 to 1.80 times at the first godet roller and the second seal wire hot-rolling by the pre-network of 80 to 120kPa, obtained FDY filament enters the ultra-fine full drawing-off finished product spinning cake of polyamide fibre micro Denier that high speed winding head package becomes 4 to 6kg again after Network device.
The said goods, test through GB GB/T14344 chemical fiber filament Erichsen test method, fracture strength reaches 4.76cN/dtex, presentation quality " high-class product " (AA) rate reaches 95.6%, compare product obtained from boosting assembly under the prior art that same method records, its fracture strength 3.96cN/dtex, presentation quality " high-class product " (AA) rate 90.8% all has significantly to be improved.
In addition, along with the increase of device service time, the initial pressure of this device can slowly increase, and when component pressure reaches the mechanical seal limit (empirical value 22000kPa), assembly must be changed, and enters the operation in next cycle.Record oneself from boosting assembly and prior art provided by the invention through test and boost assembly melt pressure curve comparison effect as shown in Figure 2.Transverse axis X indication device service time in Fig. 2, in units of sky; Longitudinal axis Y represents from boosting assembly melt pressure, by kPa in units of.A is provided by the invention from boosting assembly melt pressure curve, and initial pressure is 16000kPa; B is the assembly of the boosting certainly melt pressure curve that prior art provides, and initial pressure is 11000kPa.And the replacement cycle from boosting assembly provided by the invention can reach 90 days, and the replacement cycle of common component is between 40 to 60 days.Therefore the present invention extends the replacement cycle of device, significantly improves production efficiency.In addition the invention provides from boosting assembly melt pressure curvilinear motion rate little, therefore the suitable prior art of device performance is more stable.
More than statement is only preferred embodiment of the present invention, and it should be pointed out that to those skilled in the art, without departing from the concept of the premise of the invention, can also make some distortion and improvement, these also should be considered as within protection scope of the present invention.
Claims (2)
1. the micro Denier polyamide fibre preparation assembly that certainly boosts, it is characterized in that, comprise: the distribution network (3) that housing (1), top cover (2), described housing (1) are inner and be positioned at the spinnerets (4) of described distribution network (3) lower floor, filter sand (5), filter (52), second cross filter sand (6) and spacer screen (53) to be excessively provided with first between described top cover (2) to described distribution network (3) successively
Described top cover (2) and described first is crossed between filter sand (5) and is provided with block (51), is provided with distribution plate (54) between described distribution network (3) and described spacer screen (53);
Described spacer screen (53) comprises supporting network (531) and the metal nonwoven fabric (532) of described supporting network (531) and described second excessively between filter sand (6);
Described block (51) adopts 30 to 50 object stainless (steel) wires, described first crosses filter sand (5) adopts 40 to 60 object metal sands, described filter (52) adopts 50 to 60 object stainless (steel) wires, described second crosses filter sand (6) adopts 60 to 80 object metal sands, the nominal pore of described metal nonwoven fabric (532) is 5 to 15 μm, described supporting network (531) adopts 50 object stainless (steel) wires, and described distribution network (3) adopts 250 order stainless (steel) wires.
2. a kind of micro Denier polyamide fibre preparation according to claim 1 is with from boosting assembly, it is characterized in that: be provided with sealing ring (11) between described housing (1) and described top cover (2).
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| CN201310028473.8A CN103046148B (en) | 2013-01-21 | 2013-01-21 | A kind of micro Denier polyamide fibre preparation assembly that certainly boosts |
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| CN201310028473.8A CN103046148B (en) | 2013-01-21 | 2013-01-21 | A kind of micro Denier polyamide fibre preparation assembly that certainly boosts |
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| CN103046148B true CN103046148B (en) | 2015-12-30 |
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Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN105671651B (en) * | 2014-11-20 | 2018-11-20 | 中国石油化工股份有限公司 | The preparation method of polyacrylonitrile fibre |
| CN104963005A (en) * | 2015-06-06 | 2015-10-07 | 茅伟萍 | Automatic boosting assembly |
| CN107904674B (en) * | 2017-11-30 | 2023-06-27 | 神马博列麦（平顶山）气囊丝制造有限公司 | Spinning component for industrial filament production of nylon 66 air bags |
| CN108315826B (en) * | 2017-12-29 | 2021-06-01 | 黎明职业大学 | Filtration regeneration system of old and useless non-woven fabrics |
| CN108251901B (en) * | 2017-12-29 | 2021-05-11 | 黎明职业大学 | Method for preparing fibers by doping waste non-woven fabric reclaimed materials |
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| JP3920491B2 (en) * | 1999-03-23 | 2007-05-30 | ナブテスコ株式会社 | Spinning pack for melt spinning and assembling method thereof |
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| US5662947A (en) * | 1993-06-21 | 1997-09-02 | Rieter Automatik Gmbh | Nozzle plate holding device for spinning of continuous filaments |
| US5997789A (en) * | 1997-03-31 | 1999-12-07 | Toray Industries, Inc. | Process of melt-spinning synthetic fiber |
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