CN107012522B - Produce the production line and its production technology of the compound short fibre of Three-dimensional crimped hollow type terylene - Google Patents
Produce the production line and its production technology of the compound short fibre of Three-dimensional crimped hollow type terylene Download PDFInfo
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- CN107012522B CN107012522B CN201710307762.XA CN201710307762A CN107012522B CN 107012522 B CN107012522 B CN 107012522B CN 201710307762 A CN201710307762 A CN 201710307762A CN 107012522 B CN107012522 B CN 107012522B
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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
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- D—TEXTILES; PAPER
- D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
- D01D—MECHANICAL METHODS OR APPARATUS IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES OR RIBBONS
- D01D5/00—Formation of filaments, threads, or the like
- D01D5/08—Melt spinning methods
- D01D5/088—Cooling filaments, threads or the like, leaving the spinnerettes
- D01D5/092—Cooling filaments, threads or the like, leaving the spinnerettes in shafts or chimneys
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- D—TEXTILES; PAPER
- D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
- D01D—MECHANICAL METHODS OR APPARATUS IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES OR RIBBONS
- D01D5/00—Formation of filaments, threads, or the like
- D01D5/24—Formation of filaments, threads, or the like with a hollow structure; Spinnerette packs therefor
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- D—TEXTILES; PAPER
- D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
- D01D—MECHANICAL METHODS OR APPARATUS IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES OR RIBBONS
- D01D5/00—Formation of filaments, threads, or the like
- D01D5/28—Formation of filaments, threads, or the like while mixing different spinning solutions or melts during the spinning operation; Spinnerette packs therefor
- D01D5/30—Conjugate filaments; Spinnerette packs therefor
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- D—TEXTILES; PAPER
- D10—INDEXING SCHEME ASSOCIATED WITH SUBLASSES OF SECTION D, RELATING TO TEXTILES
- D10B—INDEXING SCHEME ASSOCIATED WITH SUBLASSES OF SECTION D, RELATING TO TEXTILES
- D10B2331/00—Fibres made from polymers obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds, e.g. polycondensation products
- D10B2331/04—Fibres made from polymers obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds, e.g. polycondensation products polyesters, e.g. polyethylene terephthalate [PET]
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- Spinning Methods And Devices For Manufacturing Artificial Fibers (AREA)
Abstract
The invention discloses a kind of production lines and its production technology for producing Three-dimensional crimped hollow type terylene short fiber, it is characterized in that, by two kinds of components by slice, screening, metal detection, it is dry, feeding, it squeezes out, filtering, spinning, metering, filament spinning component technique, two components are mixed in filament spinning component, using spinneret, circular blow wind, tentatively oil, path, it oils, traction, feeding machine, fiber barrel repeat system technique, using the above scheme, the raw material of different component is being handled by different leading portion production lines, two components are mixed in filament spinning component again, since every monofilament is by A, two kinds of different component compositions of B, and the heat-shrinkable of the two is variant, thus cause fiber crimp performance different.The intrinsic crimp properties of this fiber itself can become readily apparent from and stablize after loose thermal finalization.
Description
Technical field
The present invention relates to terylene short fiber preparation field, in particular to a kind of compound short fibre of production Three-dimensional crimped hollow type terylene
Production line and its production technology.
Background technique
Three-dimensional static electric field is widely used in due to having the advantages that light-weight, bulkiness is good, warmth retention property is good
The fields such as bedding and clothing, toy, non-woven fabrics.
Currently, the Chinese patent of Publication No. CN101328636A discloses a kind of production work of three-dimensional static electric field
Skill, it includes:
Spinning technique process:
The outer circular blow tow cooling → spinning shaft → of spinning manifold → metering pump → filament spinning component → semi-open-type oils →
Up- coiler → traction device → feeding unit → fiber barrel reciprocating apparatus → fiber barrel conveying.
Aftertreatment technology process:
Fiber barrel → creel → upper silk guide frame → lower silk guide frame → five roller guiding machines → immersion cell → first drafting machine →
Drawing-off bath → the second drafting machine → steam heating box → third drafting machine → folded silk machine → curling preheating cabinet → crimping machine → silk
The upper silicone oil machine → traction machine → cutting machine → piddler Slicking apparatus → dryer → baling press of beam coolconveyer → catch knot device → →
Finished product middle database.
Spinning workshop section: special designing is used on circular blow wind apparatus and is modified, spinneret uses the single hole of special designing, four
Hole, seven apertures in the human head or nine hole hollow type spinnerets, spinning technique use Asymmetrical cooling mode, so that fiber generates non-uniform cooling
Effect obtains the rolled efficiency of screw type after the processing of spinning later.
Treatment and finishing section: increase spray silicone oil machine before cutting machine, increase piddler Slicking apparatus, dryer after cutting machine.
Spin three-dimensional hollow polyester staple fiber, main technique are as follows: (cut the polyester fondant of inherent viscosity 0.64~0.67
Piece) or returnable bottle piece progress melt spinning, spinning speed is between 800~1250 ms/min;Using high wind speed, Asymmetrical cooling
Mode, raw tow (undrawn yarn) obtained use two draft process in treatment and finishing section.One of drawing-off is in the first drawing-off
It is carried out between machine and the second drafting machine, two drawing-offs carry out between the second drafting machine and third drafting machine.With plain edition and height
Fibre bundle after stretching unlike strong type process flow first passes through cutting and enters back into progress high temperature relaxation heat setting in dryer
(165~180 DEG C), so that the three-dimensional crimp effect of fiber is further apparent and strengthens.
The core of the preparation process of this three-dimensional static electric field is embodied in using Asymmetrical cooling mode, so that fiber
Non-uniform cooling effect is generated, this planning device is with low investment, and technique is relatively easy, but the tow density journey that spinneret goes out
Spend it is different, by Asymmetrical cooling mode technique after, batching performance can be affected, fiber it is last to batch performance, fluffy
Loose performance has difference.
Summary of the invention
A purpose of the invention is to provide a kind of production line for producing the compound short fibre of Three-dimensional crimped hollow type terylene, has
Curling stability and the excellent advantage of bulkiness.
Above-mentioned technical purpose of the invention has the technical scheme that
A kind of production line producing the compound short fibre of Three-dimensional crimped hollow type terylene, including arrange according to the following steps first
Raw material leading portion: the first slicer → first dry → the first feed bin → first screw rod of screening the → the first metal detector → first squeezes
Press → first filter → the first spinning manifold → the first metering pump;
Second raw material leading portion: the second slicer → the second dry → the second feed bin of screening the → the second metal detector → second
→ the second screw extruder → the second filter → the second spinning manifold → the second metering pump;
First raw material leading portion and the second raw material leading portion converge to filament spinning component, and are arranged with filament spinning component according to the following steps
→ spinneret → circular blow wind → tentatively oils → path → winding oiling machine → dragger → feeding-wheel → fiber barrel repeat system.
Two kinds of materials can be led to by using above-mentioned technical proposal using the first raw material leading portion and the second raw material leading portion
Cross the production line carry out it is compound, the first raw material and the second raw material converge in filament spinning component, then carry out spinneret, the fiber after spinneret
The performance of available two kinds of materials, then carry out the better fiber of available the batching property of asymmetric ring wind quenching.
Further setting: it is located at spinneret preamble position in the filament spinning component and is equipped with raw material point.
By using above-mentioned technical proposal, for the equipment in filament spinning component, two kinds of materials are the spinning before spinning process
Converge in component, using the runner in filament spinning component, filtration system, the melt phase of two kinds of materials is made on a position appropriate
Converge, sprays it on same spinneret.
Further setting: the circular blow wind is center wind cooled circular blow wind.
By using above-mentioned technical proposal, the melt stream of extrusion is cooled to by center wind cooled circular blow wind apparatus
Shape;So that generating non-uniform microstructure on strand section, reach unsymmetrical excavation molding.
Further setting: the center wind cooled circular blow wind apparatus is ellipsoid.
By using above-mentioned technical proposal, the ellipsoid that circular blow wind apparatus has can be such that coghill net hole sprays distinguished and admirable
With an arc gradual change, tow can be blown more scattered in the medium position of ellipsoid, and cooling effect is more preferable.
It is a further object of the present invention to provide a kind of techniques for producing the compound short fibre of Three-dimensional crimped hollow type terylene, have
Curling stability and the excellent advantage of bulkiness.
Above-mentioned technical purpose of the invention has the technical scheme that
A kind of technique according to the above-mentioned production line production compound short fibre of Three-dimensional crimped hollow type terylene, according to the following steps
It carries out: 1, being sliced, take two kinds of raw materials for belonging to polyester series, packed two kinds is taken to belong at the feed stock chip of polyester series
Reason, complies with processing request;
2, it sieves, the other impurities for removing overlength slice and not cleaning out;
3, implicit metal impurities are fallen in metal detection, the external magnet in conveyer belt top, cooperation conveyer belt vibration absorption;
4, dry, slice is transported into dry gas generator, and compressed air is dried through molecular sieve drying device, it is ensured that dry chip
Moisture content is stablized in 50PPM or less;
5, the raw material that two kinds belong to polyester series is continuously sent to frequency conversion control by feeding out of dry gas generator feed bin
In two independent screw extruders of system;
6, squeeze out, screw extruder by the compacting of the solid slice of conveying, melting, be kneaded after at extrusion molding, screw extruding
The screw slenderness ratio of machine is 28:1, and the circle of screw speed 40 to 60 is per minute, head pressure 25MPa;
7, it filters, melt enters pre-filtering impurity in double switch filtering devices, mixed by the static state of each manifold later
Clutch makes in filtration system without dead angle and guarantee polyester fondant uniformity of temperature profile;
8, spinning manifold, melt enter in spinning manifold, and spinning body temperature is 266 DEG C -274 DEG C, spinning manifold
Interior distribution circuit system ensure that identical by the melt residence time of distribution circuit system to each spinning position;Using being assemblied in
Needle valve before every spinning position can realize the independent closing of each spinning position;
9, it measures, after melt is by distribution circuit, needle valve, the metering pump meter through the control driving of frequency converter transmission device
Amount is flowed into filament spinning component with uniform flux, and metering pump is pressurized melt, to adapt to spinning needs, metering pump speed for 20 to
50 circles are per minute;
10, filament spinning component is equipped with filter screen, filtration core or filter sand in filament spinning component using horizontal metering pump drive, with
The mechanical admixture and gel particles in the raw material melt that two kinds belong to polyester series are filtered off, two kinds of originals for belonging to polyester series are reduced
Existing viscosity differences between the melt of material;
11, it mixes, two melts is mixed in filament spinning component, which is located at before spinneret;
12, spinneret is extruded into melt stream after two kinds of melts converge from spinneret orifice, in this step, in
Empty spinneret obtains spun filament by hollow spinneret plate, 190 millimeters of hollow spinneret plate diameter of section, 192 holes is arranged;
13, the melt stream of circular blow wind, extrusion carries out cooling forming by center wind cooled circular blow wind apparatus;So that strand is cut
Non-uniform microstructure is generated on face, reaches unsymmetrical excavation molding;
14, it tentatively oils, to improve electrostatic phenomenon, while increasing cohesive force between precursor, using narrow in spinning blowing window
Seam annular oiling machine oils to tow is appropriate in advance;
15, path passes through spinning shaft after being cooled and solidified by the cooling indoor center wind cooled circular blow wind apparatus of silk
Guide to winding panel;
16, it oils, the tow of each spinning position passes through the winding panel of oiling machine, by the aluminum oxide finish oil disc of frequency control
It is two-sided to oil;
17, it draws, by steering roller guide, the tow of 32 spinning positions is merged into one tow, passes through four independences
Seven rollers of frequency control draw machine travel;Specifically, the spinning machine shares four spinning manifolds, every cabinet has eight spinning positions,
Count 32 spinning positions;Each spinning position has a needle valve, a metering pump, a set of driving device and a set of filament spinning component respectively
Composition;
18, feeding machine is sent into the feeding-wheel of the feeding machine of frequency control, falls into round fiber barrel;
19, fiber barrel repeat system, by PLC may be programmed industrial control system control fiber barrel reciprocating apparatus traversing trolley and
Vertical dynamic trolley carries out location control, the accurate positioning and reciprocating motion for controlling fiber barrel reciprocating apparatus, and round fiber barrel is back and forth
System enters tow uniform shakedown in the fiber barrel on fiber barrel repeat system.
The leading portion of two kinds of feedstock processings is provided by above-mentioned technique by using above-mentioned technical proposal, by different component
Raw material handled by different leading portion production lines, then two components are mixed in filament spinning component, due to every monofilament
It is made of two kinds of different components of A, B, and the heat-shrinkable of the two is variant, thus cause fiber crimp performance different.This
The intrinsic crimp properties of kind fiber itself can become readily apparent from and stablize after loose thermal finalization.
Further setting: the center wind cooled circular blow wind apparatus is dried outward from center, and 550 millimeters of blowing height is adopted
With cylinder mesh outlet air form, per hour, circular blow air temperature is 20 DEG C -22 DEG C to 850 cubic metres of blowing amount, the circular blow rheumatism
Degree is 75% to 80%.
By using above-mentioned technical proposal, center wind cooled circular blow wind apparatus is dried outward from center, and blowing height 500 arrives
600 millimeters, easily there is the non-uniform phenomenon of thickness in blowing excessive height tow, and blowing height is too low, and tow crimping degree is deteriorated,
I.e. three-dimensional crimp effect is deteriorated, and using 550 millimeters of blowing height, tow even thickness, crimp property is superior;Using open
Air regulator form, blowing amount 800 to 920/h, the excessively high tow uniformity of blowing amount are deteriorated, and the too low tow windward side of blowing amount is cooling
Speed reduces, and shrinking percentage reduces, three-dimensional crimp reduced performance, and blowing amount uses 850/h, and circular blow wind speed 1.4 arrives 1.5m/s;Collection
Middle ring blowing temperature is 20 DEG C -22 DEG C, and wind-warm syndrome is too low, and crack easily occurs in tow, excessively high that amount of crimp is easily caused to be deteriorated, circular blow wind
Humidity is 72% to 80%, and humidity influences the cooling effect and crimpness of tow, using 75% circular blow wind moisture.
Further setting: the center wind cooled circular blow wind apparatus is ellipsoid, and mesh is uniformly laid with to ellipsoid periphery.
By using above-mentioned technical proposal, the ellipsoid that center wind cooled circular blow wind apparatus has can make coghill net hole
Spray it is distinguished and admirable there is an arc gradual change, tow can be blown more scattered in the medium position of ellipsoid, and cooling effect is more preferable.
Further setting: two kinds of raw materials for belonging to polyester series are PET slice and PBT slice.
By using above-mentioned technical proposal, PET slice and PBT slice have similar spinning to belong to polyester series
Condition and good compatible cohesive force.
Detailed description of the invention
Fig. 1 is the schematic diagram for producing the production line of the compound short fibre of Three-dimensional crimped hollow type terylene;
Fig. 2 is the process flow diagram for producing the technique of the compound short fibre of Three-dimensional crimped hollow type terylene;
Fig. 3 is circular blow wind apparatus schematic diagram;
In figure, 1, spinneret;2, oiling machine;3, tow;4, air dispelling hole;5, gaseous diffuser;6, collect beam spot;7, path.
Specific embodiment
Below in conjunction with attached drawing, invention is further described in detail.
Embodiment 1:
A kind of production line producing the compound short fibre of Three-dimensional crimped hollow type terylene, including preceding spinning production line.
The production line of preceding spinning includes the slicer → screening → metal detector → drying → feed bin → screw rod being arranged successively
Extruder → filter → spinning manifold → metering pump → filament spinning component → spinneret → circular blow wind → tentatively oils → and path →
Wind oiling machine → dragger → feeding-wheel → fiber barrel repeat system.
Embodiment 2:
A kind of technique producing the compound short fibre of Three-dimensional crimped hollow type terylene is as follows: including fore-spinning.
Fore-spinning is as follows:
1, it is sliced, takes two kinds of raw materials for belonging to polyester series, packed two kinds is taken to belong to the feed stock chip of polyester series
Processing, the granular size of slice need technique to require, and uniformly to comply with processing request;
2, it sieves, the other impurities for removing overlength slice and not cleaning out;It removes overlength slice and does not clean out
Other impurities, two kinds of raw material handling packings for belonging to polyester series and slice are all made of mechanically actuated, it is understood that there may be slice is uneven
It is even or have the case where other types plastics are not removed, it is sliced and too long is coagulated completely during heating melts soft there may be unmelted
The phenomenon that glue, and the fusing point of other types plastics and raw material are different, will affect drying effect and melt if do not removed
Uniformity;
3, implicit metal impurities are fallen in metal detection, the external magnet in conveyer belt top, cooperation conveyer belt vibration absorption;Recycling
The raw material formed after plastic processing, if do not removed, it is equal may to seriously affect melt containing complete metal particle is not removed
Even property can also block spinneret orifice, cause the dual decline of efficiency and quality;
4, dry, slice is transported into dry gas generator, and compressed air is dried through molecular sieve drying device, dry 10-11
Hour, it is ensured that dry chip moisture content is stablized in 50PPM hereinafter, its purpose is first is that the surface water and internal water that removing is sliced, prevent
In melting process at a higher temperature, big degradation occurs for melt, and purpose makes to be sliced hardness second is that the crystallinity that raising is sliced
Become larger and softening temperature is got higher, makes its non-breakable abrasion during transport, adhesion is not easy in drying;
5, the raw material that two kinds belong to polyester series is continuously sent to frequency conversion control by feeding out of dry gas generator feed bin
In two independent screw extruders of system;
6, squeeze out, screw extruder by the compacting of the solid slice of conveying, melting, be kneaded after at extrusion molding, screw extruding
The screw slenderness ratio of machine is 28:1, and the circle of screw speed 40 to 60 is per minute, head pressure 25MPa;
7, it filters, melt enters pre-filtering impurity in double switch filtering devices, mixed by the static state of each manifold later
Clutch makes in filtration system without dead angle and guarantee polyester fondant uniformity of temperature profile;
8, spinning manifold, melt enter in spinning manifold, and spinning body temperature is 266 DEG C -274 DEG C, in spinning manifold
Distribution circuit system ensure that it is identical by the melt residence time of distribution circuit system to each spinning position;It is every using being assemblied in
Needle valve before spinning position can realize the independent closing of each spinning position;
9, it measures, after melt is by distribution circuit, needle valve, the metering pump meter through the control driving of frequency converter transmission device
Amount is flowed into filament spinning component with uniform flux, and metering pump can be such that melt is pressurized, and to adapt to spinning needs, metering pump speed is
20 to 50r/min;
10, filament spinning component is equipped with filter screen, filtration core or filter sand in filament spinning component using horizontal metering pump drive, with
The mechanical admixture and gel particles in the raw material melt that two kinds belong to polyester series are filtered off, two kinds of originals for belonging to polyester series are reduced
Existing viscosity differences between the melt of material;
11, it mixes, two melts is located in filament spinning component and are mixed, which is located at before spinneret;
12, spinneret is extruded into melt stream after two kinds of melts converge from spinneret orifice, in this step, in
Empty spinneret obtains spun filament by empty spinneret, and 192 holes are arranged in 190 millimeters of empty spinneret diameter of section;
13, the melt stream of circular blow wind, extrusion carries out cooling forming by center wind cooled circular blow wind apparatus;So that tow is cut
Non-uniform microstructure is generated on face, reaches unsymmetrical excavation molding, and circular blow wind apparatus is dried outward from center, blowing height
500 to 600 millimeters, easily there is the non-uniform phenomenon of thickness, too low, the tow crimping degree of blowing height in blowing excessive height tow
It is deteriorated, i.e., three-dimensional crimp effect is deteriorated, and using 550 millimeters of blowing height, tow even thickness, crimp property is superior;Using
Open air regulator form, blowing amount 800 to 920/h, the excessively high tow uniformity of blowing amount are deteriorated, and the too low tow of blowing amount is windward
Face cooling velocity reduces, and shrinking percentage reduces, three-dimensional crimp reduced performance, and blowing amount uses 850/h, and circular blow wind speed 1.4 arrives
1.5m/s;Concentrating circular blow wind-warm syndrome is 20 DEG C -22 DEG C, and wind-warm syndrome is too low, and crack easily occurs in tow, excessively high that amount of crimp is easily caused to become
Difference, circular blow wind moisture are 72% to 80%, and humidity influences the cooling effect and crimpness of tow, using 75% circular blow rheumatism
Degree;Circular blow uses column type gaseous diffuser, and diffuser wall is evenly distributed with rib type or round air dispelling hole guarantees that air-dispersing is uniform,
90 to 140 millimeters of diffuser diameter, 40 to 60 millimeters of height cooperate the diameter of hollow spinneret plate and spinneret hole number and increase and decrease,
Using the gaseous diffuser of 130 mm dia, 50 height, uniform air-dispersing, guarantee tow are equal outward by center for gaseous diffuser
It is unified to facilitate tow overall performance for even wind-engaging;
14, it tentatively oils, to improve electrostatic phenomenon, while increasing cohesive force between precursor, using narrow in spinning blowing window
Seam annular oiling machine oils to tow is appropriate in advance, is conducive to prevention tow and is embraced in constriction because of electrostatic, is conducive to spin speed
Raising and spinneret hole number increase;
15, path passes through spinning after tow is cooled and solidified by cooling down the indoor center wind cooled circular blow wind apparatus of silk
Then path boundling guides to winding panel;
16, it oils, the tow of each spinning position passes through the winding panel of oiling machine, by the aluminum oxide finish oil disc of frequency control
Two-sided to oil, micro-pore structure, the film surface thickness that oils is uniform, increases synnema and saves from damage, eliminates electrostatic, reduces friction;
17, it draws, by steering roller guide, the tow of 32 spinning positions is merged into one tow, passes through four independences
Seven rollers of frequency control draw machine travel;Specifically, the spinning machine shares four spinning manifolds, every cabinet has eight spinning positions,
Count 32 spinning positions;Each spinning position has a needle valve, a metering pump, a set of driving device and a set of filament spinning component respectively
Composition;
18, feeding machine is sent into the feeding-wheel of the feeding machine of frequency control, falls into round fiber barrel;
19, fiber barrel repeat system, by PLC may be programmed industrial control system control fiber barrel reciprocating apparatus traversing trolley and
Vertical dynamic trolley carries out location control, the accurate positioning and reciprocating motion for controlling fiber barrel reciprocating apparatus, and fiber barrel repeat system makes
The uniform shakedown of tow enters in the round fiber barrel on fiber barrel repeat system.
Fore-spinning passes through above-mentioned each step, and Raw material processing is had latent crimp at what can be further processed in itself
Spun filament.Specific mechanism is as follows: spinneret is hollow circular, during wire-beam forming, because being blown using center wind cooled annular
Wind apparatus, quenching circular blow after cold wind blows over windward side, cannot blow through tow layer when spinneret is sufficiently large and tow is more again, this
Sample, when wire vent, the degree of molecular orientation of the windward side of every silk is far longer than leeward, so that it is different to generate two sides shrinking percentage
Effect, this just makes fiber itself, and there are latent crimps, and after after the stretch processing of spinning process, windward side, which is shunk, is greater than leeward receipts
Contracting, in the shape of a spiral, after thermal finalization, 360 ° of spiral rotatings are made in this curling to fiber centered on fiber axis, and fiber is made to occupy three
Dimension space, since this curling is related with fibrous inner structure, curling waveform is steady and permanent.
The above embodiments are only explanation of the invention, are not limitation of the present invention, those skilled in the art
Member can according to need the modification that not creative contribution is made to the present embodiment after reading this specification, but as long as at this
All by the protection of Patent Law in the scope of the claims of invention.
Claims (6)
1. a kind of technique of the production line production compound short fibre of Three-dimensional crimped hollow type terylene, it is characterised in that: according to the following steps
It carries out: 1, being sliced, take two kinds of raw materials for belonging to polyester series, packed two kinds is taken to belong at the feed stock chip of polyester series
Reason, complies with processing request;
2, it sieves, the other impurities for removing overlength slice and not cleaning out;
3, implicit metal impurities are fallen in metal detection, the external magnet in conveyer belt top, cooperation conveyer belt vibration absorption;
4, dry, slice is transported into dry gas generator, and compressed air is dried through molecular sieve drying device, it is ensured that dry chip is aqueous
Rate is stablized in 50PPM or less;
5, the raw material that two kinds belong to polyester series is continuously sent to frequency control out of dry gas generator feed bin by feeding
In two independent screw extruders;
6, squeeze out, screw extruder by the compacting of the solid slice of conveying, melting, be kneaded after through extrusion molding, screw extruder
Screw slenderness ratio is 28:1, and the circle of screw speed 40 to 60 is per minute, head pressure 25MPa;
7, it filtering, melt enters pre-filtering impurity in double switch filtering devices, pass through the static mixer of each manifold later,
Make in filtration system without dead angle and guarantee polyester fondant uniformity of temperature profile;
8, spinning manifold, melt enter in spinning manifold, and spinning body temperature is 266 DEG C -274 DEG C, and intracorporal point of manifold
It ensure that with pipe-line system identical by the melt residence time of each spinning position of distribution circuit system;Before being assemblied in every spinning position
Needle valve can realize the independent closing of each spinning position;
9, it measures, after melt is by distribution circuit, needle valve, the metering pump-metered through the control driving of frequency converter transmission device, with
Uniform flux flows into filament spinning component, and metering pump is pressurized melt, and to adapt to spinning needs, metering pump speed is that 20 to 50 circles are every
Minute;
10, filament spinning component is equipped with filter screen, filtration core or filter sand in filament spinning component using horizontal metering pump drive, to filter off
Two kinds of mechanical admixtures and gel particles belonged in the raw material melt of polyester series reduce the raw material that two kinds belong to polyester series
Existing viscosity differences between melt;
11, it mixes, two melts is mixed in filament spinning component, hybrid position is located at before spinneret;
12, spinneret is extruded into melt stream after two kinds of melts converge from spinneret orifice, in this step, using hollow spray
Filament plate obtains spun filament by hollow spinneret plate, 190 millimeters of hollow spinneret plate diameter of section, 192 holes is arranged;
13, the melt stream of circular blow wind, extrusion carries out cooling forming by center wind cooled circular blow wind apparatus;So that on strand section
Non-uniform microstructure is generated, unsymmetrical excavation molding is reached;The center wind cooled circular blow wind apparatus is blown outward from center
Wind, 550 millimeters of blowing height, using cylinder mesh outlet air form, per hour, circular blow air temperature is 20 to 850 cubic metres of blowing amount
DEG C -22 DEG C, the circular blow wind moisture is 75% to 80%;The center wind cooled circular blow wind apparatus is ellipsoid, and mesh is uniform
It is laid with to ellipsoid periphery;
14, it tentatively oils, to improve electrostatic phenomenon, while increasing cohesive force between precursor, slit is used in spinning blowing window
Annular oiling machine oils to tow is appropriate in advance;
15, path is guided to after being cooled and solidified by the cooling indoor center wind cooled circular blow wind apparatus of silk by spinning shaft
Wind panel;
16, it oils, the tow of each spinning position passes through the winding panel of oiling machine, two-sided by the aluminum oxide finish oil disc of frequency control
It oils;
17, it draws, by steering roller guide, the tow of 32 spinning positions is merged into one tow, passes through four independent frequency conversions
Seven rollers of control draw machine travel;Specifically, spinning machine shares four spinning manifolds, every cabinet has eight spinning positions, Ji Sanshi
Two spinning positions;Each spinning position is respectively by a needle valve, a metering pump, a set of driving device and a set of filament spinning component composition;
18, feeding machine is sent into the feeding-wheel of the feeding machine of frequency control, falls into round fiber barrel;
19, fiber barrel repeat system may be programmed the traversing trolley of the fiber barrel reciprocating apparatus of industrial control system control by PLC and be indulged dynamic
Trolley carries out location control, the accurate positioning and reciprocating motion for controlling fiber barrel reciprocating apparatus, and fiber barrel repeat system makes tow
Uniform shakedown enters in the round fiber barrel on fiber barrel repeat system.
2. technique according to claim 1, it is characterised in that: two kinds of raw materials for belonging to polyester series are PET slice and PBT
Slice.
3. a kind of production of the technique production compound short fibre of Three-dimensional crimped hollow type terylene according to claim 1 to 2
Line, it is characterised in that: including the first raw material leading portion arranged according to the following steps: the first slicer → first the → the first gold medal of screening
Belong to dry → the first feed bin → first screw extruder → first filter → first spinning manifold → the first of detector → first
Metering pump;
Second raw material leading portion: the second slicer → the second dry → the second feed bin → the of screening the → the second metal detector → second
Two screw extruders → the second filter → the second spinning manifold → the second metering pump;
First raw material leading portion and the second raw material leading portion converge to filament spinning component, and are arranged with filament spinning component → spray according to the following steps
Filament plate → circular blow wind → tentatively oils → path → winding oiling machine → dragger → feeding-wheel → fiber barrel repeat system.
4. the production line of the production compound short fibre of Three-dimensional crimped hollow type terylene according to claim 3, it is characterised in that: institute
It states to be located at spinneret preamble position in filament spinning component and is equipped with raw material point.
5. the production line of the production compound short fibre of Three-dimensional crimped hollow type terylene according to claim 3, it is characterised in that: institute
Stating circular blow wind is center wind cooled circular blow wind.
6. the production line of the production compound short fibre of Three-dimensional crimped hollow type terylene according to claim 5, it is characterised in that: institute
Stating center wind cooled circular blow wind apparatus is ellipsoid.
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