CN103614861A - Polyester filament needle-punched geotechnical cloth production method - Google Patents
Polyester filament needle-punched geotechnical cloth production method Download PDFInfo
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- CN103614861A CN103614861A CN201310565017.7A CN201310565017A CN103614861A CN 103614861 A CN103614861 A CN 103614861A CN 201310565017 A CN201310565017 A CN 201310565017A CN 103614861 A CN103614861 A CN 103614861A
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Abstract
The invention belongs to the technical field of geotechnical cloth manufacturing and discloses a polyester filament needle-punched geotechnical cloth production method. The technical process of the method includes enabling polyester chips to enter a high-efficiency self-exhausting screw extruder for filtering by a filter after being dried by a rotary drum, enabling the polyester chips to enter a spinning machine to ejecting melt filaments by a spinneret plate through a metering pump, performing cooling forming through cross air blowing, drafting through tubular airflow and lapping through a pendulum-type filament placing machine, laying a fiber web on woven fabric, synchronously unwinding the woven fabric through an unwinding machine in front of a lapper, enabling the woven fabric and the web to enter a pre-needle-punching machine for needle-punching presetting, performing re-reinforcing setting through a main needle-punching machine 1 and restoration setting through a main needle-punching machine 2, performing cloth containing through a cloth-containing tensioner, and coiling through edge cutting. High-strength polyester filament geotechnical cloth produced by the method is high in strength, low in elongation and longer in service life when being applied in engineering. By the method, conventional crystallizing and drying processes are omitted, so that a lot of electric energy is saved and cost is low.
Description
Technical field
A kind of polyester filament acupuncture of the present invention geotextiles production method, belongs to geotextiles manufacturing technology field.
Background technology
Existing geotextiles production method needs crystallizing and drying system, and investment is large, and polyester slice is dried comprehensively, the wind-warm syndrome of crystallization heater and drying heater all needs to be controlled at 140-180 ℃, power consumption is large, and the method is from polyester filament production line implantation technique, high for geotextiles production cost.If do not add woven cloth in material, the intensity of material is low, extends greatly, and percentage elongation reaches 50-70%, the protection of material, reinforcement, isolation, anti-settling poor performance.Lack main needing machine and be subject to the constraint of pin larger to production line, often shut down, the raw material that all will waste 300Kg left and right is shut down in the start of this class production line, and waste is large, production cost is high.
Summary of the invention
In order to solve the deficiencies in the prior art, the invention provides a kind of polyester filament acupuncture geotextiles production method, its object, for enhancing productivity, reduces production costs.
The technical solution used in the present invention is: the step that a kind of polyester filament acupuncture geotextiles production method adopts is as follows:
(1) polyester raw material is placed in to rotary drum inner drying, by efficiently from degassing extruder melt extruded;
(2) melt enters and by measuring pump, quantitatively delivers to assembly spinnerets after spinning manifold and spray, and forms melt thread;
(3) adopting temperature is 15-22 ℃, and the hot blast of relative humidity 50-90% is to as-spun fibre cooling processing;
(4) adopt heat pipe-type air drawing, the temperature of extension apparatus is controlled 70-80 ℃;
(5) adopt double pendulum chip four connecting rod swaying mechanism pendulum wires, a pair of upper and lower two pendulums of each correspondence;
(6) tow is evenly taped against fiber on the guipure of lapper by yarn swaying machine;
(7) adopt permanent tension force to unreel, the speed that unreels is controlled 1-15m/min;
(8) pre-needling machine adopts upper thorn formula sizing, punch frequency: 200-1200 time/min, and 2000-4000 piece/m of needle plate bestock, acupuncture traverse 40-60mm, the dark 0-10mm of pin;
(9) main needing machine 1 adopts lower thorn formula to reinforce sizing, punch frequency: 200-1200 time/min, and 3000-6000 piece/m of needle plate bestock, acupuncture traverse 30-50mm, the dark 0-10mm of pin;
(10) main needing machine 2 adopts upper thorn formula reparation sizing, punch frequency: 200-1200 time/min, and 3000-5000 piece/m of needle plate bestock, acupuncture traverse 20-50mm, the dark 0-10mm of pin;
(11) Rong Buji holds cloth, trimming rolling.
Adopt above-mentioned technical scheme, drum dried and the mode of being efficiently combined from degassing extruder, though polyester slice is not got rid of moisture completely after rotary drum dryer inner drying, but can discharge rapidly efficiently forming steam in vented screw extruder, to melt, can not exert an influence, therefore can guarantee final product quality.
The highest 100KN/m of material knitting cloth intensity high-tensile strength using, extend and be less than 30%, after acupuncture sizing, the combination property of material is splendid, uses, protection, strengthens in engineering, and isolation anti-settling performance is strong, makes engineering more stable.If much more especially three needing machines establish a main needing machine 2, when production line is just started shooting, pre-needling machine is not had an injection, can be without this machine, after pre-needling machine is had an injection, can start this machine, and only set up pricker with the pre-needling machine correspondence position of having an injection, acupuncture bad position is repaired, so greatly extended the available machine time.Reduced production cost.
The invention has the beneficial effects as follows: the technological process of this polyester filament acupuncture geotextiles production method is that polyester slice enters efficiently from the filtration of vented screw extruder process filter after drum dried, enter again spinning machine and from spinnerets, spray melt filament by measuring pump, again by lateral blowing cooling forming, tubular type air drawing, the lapping of oscillating-chip yarn swaying machine, fibre web is layered in woven cloth, the unreeling machine of woven cloth before by lapper synchronously unreels, woven cloth and net enter pre-needling machine acupuncture pre-setting again, the sizing of reinforcing again of main acupuncture 1, the reparation sizing of main acupuncture 2, through holding cloth tensioner, hold cloth again, finally by trimming rolling.Make high strength polyester filament yarn geotextiles, the high and low elongation of intensity of product, is applied in engineering longer service life.The method, does not have traditional crystallization, and drying process is saved a large amount of electric energy, and cost is low.
The specific embodiment
This polyester filament acupuncture geotextiles production method concrete steps are as follows:
(1) drum dried: by polyester raw material be placed in drum dried in: 50 ~ 70 ℃ of 40-90 minute of baking temperature;
(2) melt extruded: by efficiently from degassing extruder melt extruded, screw rod district temperature is controlled 260-295 ℃, if material has aqueous vapor automatically to discharge in melting process;
(3) filter filters: the melt of efficiently extruding from degassing extruder needs to filter: pressure reduction≤6Mpa after filter before filter, pressure: 6-8Mpa after filter;
(4) spinning machine adopts double spinning manifold: melt enters quantitatively to be delivered to assembly spinnerets by measuring pump after spinning manifold and spray, and forms melt thread, and spin manifold temperature 285-295 ℃, adopts biphenyl heating, component pressure 8-30 Mpa;
(5) as-spun fibre is cooling: employing temperature is 15-22 ℃, and the hot blast of relative humidity 50-90% is processed, blast 350-500pa, wind speed 0.1-0.35m/s;
(6) drawing-off: adopt heat pipe-type air drawing, the temperature of extension apparatus is controlled 70-80 ℃, and air-flow adopts compressed air, pressure 0.4-0.7 Mpa;
(7) pendulum wire: adopt double pendulum chip four connecting rod swaying mechanisms, a pair of upper and lower two pendulums of each correspondence.Two pendulum angle 35 ~ 40 degree, eccentric 12-18mm is adjustable for pendulum wire, and 400-600mm is adjustable for pendulum wire height;
(8) lapping: tow is evenly taped against fiber on the guipure of lapper by yarn swaying machine, and guipure is similar to conveyer belt, linear velocity 1-15m/min, air draught wind speed 1-5 m/s;
(9) woven cloth unreels: adopt permanent tension force to unreel, the speed of woven cloth is consistent with the speed of lapper, and the speed that unreels is controlled 1-15m/min;
(10) pre-needling machine sizing: thorn formula in employing, punch frequency: 200-1200 time/min, 2000-4000 piece/m of needle plate bestock, acupuncture traverse 40-60mm, the dark 0-10mm of pin;
(11) main acupuncture 1 machine is reinforced sizing: adopt lower thorn formula, punch frequency: 200-1200 time/min, and 3000-6000 piece/m of needle plate bestock, acupuncture traverse 30-50mm, the dark 0-10mm of pin;
(12) main acupuncture 2 machine maintenance are shaped again: thorn formula in employing, and punch frequency: 200-1200 time/min, 3000-5000 piece/m of needle plate bestock, acupuncture traverse 20-50mm, the dark 0-10mm of pin;
(13) Rong Buji holds cloth: for later process last volume changes axle buffer memory cloth, hold cloth amount 20-50m;
(14) trimming rolling: trimming adopts slab cutter rolling, cylinder pressure control range 0.1-0.6Mpa, up-coiler speed 0-30m/min.
Illustrate a kind of concrete production process of polyester filament acupuncture geotextiles below:
(1) drum dried: by polyester raw material be placed in drum dried in: 63 ℃ of baking temperatures, 70 minutes;
(2) melt extruded, by efficiently from degassing extruder melt extruded, each district's temperature of screw rod is controlled 290 ℃, 275 283 290 ℃, tetra-290 ℃, 6th district, district 291℃ 5th district, ℃, 3rd district, ℃, 2nd district, a district, if material has aqueous vapor automatically to discharge in melting process;
(3) filter filters: the melt of efficiently extruding from degassing extruder needs to filter: pressure reduction≤6Mpa after filter before filter, pressure: 8Mpa after filter;
(4) spinning machine, adopts double spinning manifold: melt enters quantitatively to be delivered to assembly spinnerets by measuring pump after spinning manifold and spray, and forms melt thread, and 290 ℃ of spin manifold temperatures, adopt biphenyl Steam Heating, assembly initial pressure 10 Mpa;
(5) as-spun fibre is cooling: adopting temperature is 18 ℃, and the hot blast of relative humidity 75% is processed, blast 500pa, wind speed 0.3m/s;
(6) drawing-off: adopt heat pipe-type air drawing, the temperature of extension apparatus is controlled 75 ℃, and air-flow adopts compressed air, pressure 0.60 Mpa;
(7) pendulum wire: adopt double pendulum chip four connecting rod swaying mechanisms, a pair of upper and lower two pendulums of each correspondence, two pendulum angle 39 degree, eccentric 18mm is adjustable for pendulum wire, and 580mm is adjustable for pendulum wire height;
(8) lapping: tow is evenly taped against fiber on the guipure of lapper by yarn swaying machine, and guipure is similar to conveyer belt, linear velocity 5m/min, air draught wind speed 1.9 m/s;
(9) woven cloth unreels: adopt permanent tension force to unreel, the speed of woven cloth is consistent with the speed of lapper, and the speed that unreels is controlled 5m/min;
(10) pre-needling machine sizing: thorn formula in employing, punch frequency: 1000 times/min, 2800 pieces/m of needle plate bestock, acupuncture traverse 40mm, the dark 8.5mm of pin;
(11) main acupuncture 1 machine is reinforced sizing: adopt lower thorn formula, punch frequency: 950 times/min, and 3500 pieces/m of needle plate bestock, acupuncture traverse 30mm, the dark 7.5mm of pin;
(12) main acupuncture 2 machine maintenance are shaped again: thorn formula in employing, and punch frequency: 1000 times/min, 3000 pieces/m of needle plate bestock, acupuncture traverse 30mm, the dark 8.5mm of pin;
(13) Rong Buji holds cloth, for later process last volume changes axle buffer memory cloth, holds cloth amount 20-50m;
(14) trimming rolling: trimming adopts slab cutter rolling, cylinder pressure control range 0.4Mpa, up-coiler speed 5m/min.
Claims (1)
1. a polyester filament acupuncture geotextiles production method, is characterized in that: the step that the method adopts is as follows:
(1) polyester raw material is placed in to rotary drum inner drying, by efficiently from degassing extruder melt extruded;
(2) melt enters and by measuring pump, quantitatively delivers to assembly spinnerets after spinning manifold and spray, and forms melt thread;
(3) adopting temperature is 15-22 ℃, and the hot blast of relative humidity 50-90% is to as-spun fibre cooling processing;
(4) adopt heat pipe-type air drawing, the temperature of extension apparatus is controlled 70-80 ℃;
(5) adopt double pendulum chip four connecting rod swaying mechanism pendulum wires, a pair of upper and lower two pendulums of each correspondence;
(6) tow is evenly taped against fiber on the guipure of lapper by yarn swaying machine;
(7) adopt permanent tension force to unreel, the speed that unreels is controlled 1-15m/min;
(8) pre-needling machine adopts upper thorn formula sizing, punch frequency: 200-1200 time/min, and 2000-4000 piece/m of needle plate bestock, acupuncture traverse 40-60mm, the dark 0-10mm of pin;
(9) main acupuncture 1 machine adopts lower thorn formula to reinforce sizing, punch frequency: 200-1200 time/min, and 3000-6000 piece/m of needle plate bestock, acupuncture traverse 30-50mm, the dark 0-10mm of pin;
(10) main needing machine adopts upper thorn formula reparation sizing, punch frequency: 200-1200 time/min, and 3000-5000 piece/m of needle plate bestock, acupuncture traverse 20-50mm, the dark 0-10mm of pin;
(11) Rong Buji holds cloth, trimming rolling.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201310565017.7A CN103614861A (en) | 2013-11-14 | 2013-11-14 | Polyester filament needle-punched geotechnical cloth production method |
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| CN201310565017.7A CN103614861A (en) | 2013-11-14 | 2013-11-14 | Polyester filament needle-punched geotechnical cloth production method |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104131412A (en) * | 2014-07-16 | 2014-11-05 | 东华大学 | Manufacturing method of composite structure soil engineering filter material |
| CN106436018A (en) * | 2016-10-25 | 2017-02-22 | 肇庆俊富纤网材料有限公司 | Automotive interior ornamental cloth manufacturing method |
| CN107938177A (en) * | 2017-12-27 | 2018-04-20 | 大连华阳新材料科技股份有限公司 | With position iso-fineness polyester filament geotextiles preparation method |
| CN108978033A (en) * | 2017-06-01 | 2018-12-11 | 无锡市振基土工材料有限公司 | A kind of production technology of terylene short fiber needle-punched geotextiles |
| CN114481447A (en) * | 2022-01-25 | 2022-05-13 | 苏州艾美医疗用品有限公司 | Production equipment and production process of medical non-woven fabric |
| CN114717832A (en) * | 2022-04-18 | 2022-07-08 | 江苏天鸟高新技术股份有限公司 | Rapid detection method for broken needles for spinning |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN104131412A (en) * | 2014-07-16 | 2014-11-05 | 东华大学 | Manufacturing method of composite structure soil engineering filter material |
| CN106436018A (en) * | 2016-10-25 | 2017-02-22 | 肇庆俊富纤网材料有限公司 | Automotive interior ornamental cloth manufacturing method |
| CN108978033A (en) * | 2017-06-01 | 2018-12-11 | 无锡市振基土工材料有限公司 | A kind of production technology of terylene short fiber needle-punched geotextiles |
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| CN114717832A (en) * | 2022-04-18 | 2022-07-08 | 江苏天鸟高新技术股份有限公司 | Rapid detection method for broken needles for spinning |
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Application publication date: 20140305 |