CN104805513B - Production method of polyamide-6 fiber - Google Patents
Production method of polyamide-6 fiber Download PDFInfo
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- CN104805513B CN104805513B CN201510201143.3A CN201510201143A CN104805513B CN 104805513 B CN104805513 B CN 104805513B CN 201510201143 A CN201510201143 A CN 201510201143A CN 104805513 B CN104805513 B CN 104805513B
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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
Abstract
The invention discloses a production method of polyamide-6 fiber. The production method comprises the following steps: a, adding polyamide-6 chips to a screw extruder, and carrying out melted extrusion; b, spinning; c, carrying out cooling forming on silk bundles by using cross air blow by using a cross air blow spinning cooling device and oiling the cooled silk bundles, wherein the cross air blow to the silk bundles in the cross air blow spinning cooling device is divided into an upper layer and a lower layer which are independent of each other, wherein the upper layer of cross air blow is obliquely blown out upwards, and the lower layer of cross air blow is taken as a main body and horizontally blown out from a cross air blow cylinder; d, carrying out pre-interlacing, drafting, interlacing and winding; e, carrying out inspection package. According to the production method disclosed by the invention, the cross air blow is adopted to substitute for side air blow, so that a melt is uniformly cooled in each direction; the phenomenon that the inner layers and the outer layers of the silk bundles cannot be uniformly cooled is effectively avoided, and the unevenness rate of the silk bundles is reduced, so that the molding quality of the silk bundles is greatly improved; the polyamide-6 fiber prepared by the production method disclosed by the invention is excellent in various performances and has favorable market competitiveness.
Description
Technical field
The present invention relates to a kind of production method of chemical fibre, especially a kind of production method of nylon-6 fiber.
Background technology
The principal item of chinlon is aliphatic polyamide fiber, and it can be synthesized with a kind of monomer, such as lactams or amino
Acid.Now the Arabic numerals after chinlon title show the carbon atom number of lactams used or aminoacid, such as chinlon 6, brocade
Synthetic fibre 66 etc..Chinlon 6 is polycaprolactam fiber, and " the chemical fibre dictionary " of 95 years first edition second printings page 412 discloses
This concept: in China's abbreviation chinlon 6, product has monofilament, multifilament, textured filament and chopped fiber etc. to polycaprolactam fiber, adopts
Obtain finished fiber with melt direct spinning or slice spinning legal system.Chinlon 6 product has high intensity, wear-resisting, flexibility and skin
The characteristic such as sense of touch is gentle, has wide in clothing, silk, umbrella, fishnet silk, cord fabric thread, carpet silk and engineering plastics field
Purposes, is consequently belonging to the main flow kind of domestic chemical fiber enterprise, and nylon fabric is also most common fabric on market.
Chinese patent zl2013103368307 discloses a kind of chinlon high-speed spinning process, and its spinning adopts ring wind quenching,
Belong to immediate prior art.Chinese patent zl201220462989.4 discloses a kind of Novel ring blowing device, it with tradition
Novel ring blowing device difference is that the cooling wind being blown into from blast pipe runs up under the stop of inner core, through double-deck plain net
Rectification equal wind effect after, eventually enter in ring Blowing drum, it is than the advantage of prior art: can make cold in ring Blowing drum
But wind evenly, is disadvantageous in that cooling performance is not good, and with spinning high-speed downstream, ring blowing is easily askew by band, especially exists
The ejection section cooling effect of as-spun fibre not good it is therefore desirable to improve.
Content of the invention
The invention aims to a kind of spinning cooling effect that can ensure that solving the deficiency of above-mentioned technology and designing
The production method of nylon-6 fiber.
A kind of production method of the nylon-6 fiber designed by the present invention, comprises the steps:
A, chinlon 6 section is added in screw extruder carries out melt extruded；
B, the blend melt of melting is transported to spinning manifold, by dosing pump, melt extrusion is carried out in filament spinning component
Spinning；
C, cooling forming is carried out to tow with ring blowing using ring blowing spinning chiller, then the tow after cooling is entered
Row oils, and is used for being divided into upper and lower two-layer and separate, upper strata to the ring blowing of tow in described ring blowing spinning chiller
Ring blowing tilt upward blowout, lower layer circular air blow be main body, from ring Blowing drum level blowout, its at the middle and upper levels ring blowing temperature and
Humidity is less than lower layer circular air blow；
D, the tow after oiling is carried out pre- network by path and silk door, then tow is led with chilling roller, hot-rolling
Stretch, by the tow screening network after drawing-off, then tow importing mound bobbins are carried out high-speed winding and become cylinder；
E, after the assay was approved, packs to nylon-6 fiber.
Preferably scheme is: 17.5～19.5 DEG C of temperature of ring blowing, speed are 0.4～0.5m/s to described step c at the middle and upper levels,
Humidity 65%～78%, 18～20 DEG C of lower layer circular air blow temperature, speed are 0.4～0.5m/s, humidity 67%～80%.
Preferably scheme is: in described step a, the thermal treatment zone of screw extruder is six, and its temperature is an area 260～262
DEG C, 265～268 DEG C of 2nd area, 265～268 DEG C of 3rd area, 265～268 DEG C of 4th area, 265～268 DEG C of 5th area, six areas 265～268
DEG C, melt pressure is 11.5～12.5mpa；In described step b, the temperature of spinning manifold is 265～270 DEG C；In described step d
Drawing-off first carries out drawing-off using two chilling rollers, after carry out drawing-off using two hot-rollings, heat roller temperature is 150～170 DEG C, drawing-off times
Speed is 1.1；Winding speed is 4000～4200m/min.
Preferably scheme is: the ring blowing spinning chiller adopting in step c includes ring blowing device and air conditioner
Group, described ring blowing device include frame, lift cylinders, elevating lever, the first blast pipe, the second blast pipe, the first outer tube, outside second
Cylinder, the 3rd outer tube, guiding air duct, ring Blowing drum and airfast inner core；Described guiding air duct, ring Blowing drum and inner core are from upper
Down set gradually and communicate, described lift cylinders and elevating lever frame are located in frame, the first blast pipe and the second blast pipe
It is located in frame, the first blast pipe and the second blast pipe are designed with deformation section and regulating valve；Described second outer tube is connected to
Below one outer tube, described 3rd outer tube is connected to below the second outer tube, the piston rod of described lift cylinders and elevating lever top all with
Described 3rd outer tube bottom is connected, and is provided with described guiding air duct inside described first outer tube, described guiding air duct is covered with tiltedly
Oblique through hole to up-draught；From oblique through hole, blowout is upper layer circular air blow；Described ring Blowing drum is located at described second outer tube
Interior, it is described lower layer circular air blow from the wind of ring Blowing drum blowout, described inner core is located in described 3rd outer tube and bottom exceeds
Described 3rd outer tube；Region between described first outer tube and guiding air duct is the first ring-shaped cavity, described second outer tube and ring
Region between Blowing drum is the second ring-shaped cavity, and the region between described 3rd outer tube and inner core is the 3rd ring-shaped cavity, institute
State the first ring-shaped cavity not connect with the second ring-shaped cavity, described second ring-shaped cavity is connected with the 3rd ring-shaped cavity, described
One blast pipe is connected on the 3rd outer tube and is communicated with described second ring-shaped cavity, and described second blast pipe is connected to the first outer tube
Communicate above and with described first ring-shaped cavity, be provided with the retainer ring being covered with through hole, described ring Blowing drum bottom in the second outer tube bottom
Portion is connected in retainer ring, accompanies ring-type mesh sheet between described second outer tube and the 3rd outer tube；Set in described first ring-shaped cavity
There is ring-type homogenating plate, described ring-type homogenating plate is covered with the first equal air holes；Described air conditioning unit inclusion fresh wind tube, backwind tube, row
Put pipe, return fan, return air spray chamber, drain valve, new air-valve, coarse filter one, coarse filter two, front-mounted heating device, preposition surface cooler,
First spray chamber, the second spray chamber, the first rearmounted surface cooler, the second rearmounted surface cooler, the first rearmounted heater, second rearmounted plus
Hot device, the first pressure fan, the second pressure fan, the first fine filter, the second fine filter, the first air outlet and the second air outlet, described
Fresh wind tube, coarse filter one, coarse filter two, front-mounted heating device, preposition surface cooler are sequentially connected, and new air-valve is located on fresh wind tube, institute
State backwind tube to be connected with fresh wind tube, described return fan and return air spray chamber are located on backwind tube, described delivery pipe and backwind tube
Be connected, described drain valve is located on delivery pipe, after described preposition surface cooler connect two branch roads, on wherein one branch road according to
Secondary be provided with the first spray chamber, the first rearmounted surface cooler, the first rearmounted heater, the first pressure fan and the first air outlet, in addition one
Second spray chamber, the second rearmounted surface cooler, the second rearmounted heater, the second pressure fan and the second air-supply are sequentially provided with bar branch road
Mouthful, described first air outlet communicates with the first blast pipe of ring blowing device, and the of described second air outlet and ring blowing device
Two blast pipes communicate.
Preferably scheme is: is additionally provided with annular fan cover in described first outer tube, the undergauge section at described annular fan cover top is led to
Cross bearing to be connected on the first outer tube, the ring segment of annular fan cover bottom is covered with the second equal air holes, the ring of annular fan cover bottom
Shape section is arranged side by side with ring-type homogenating plate, and the undergauge section at described annular fan cover top is exposed in the first outer tube upper surface and undergauge section
It is provided with gear.
Preferably scheme is: the motor that described gear drives its rotating with is in transmission connection, and motor is by controlling
Device processed controls, and wherein: described first equal air holes and the second their registration of equal air holes are x, controller is using control stepping electricity
Machine rotates and to adjust the size of registration x and then to control the air quantity entering guiding air duct.
Preferably scheme is: is provided with the first point for measuring temperature in described first ring-shaped cavity, is provided with the in the second ring-shaped cavity
Two points for measuring temperature, it is t1 that described first point for measuring temperature records temperature, and it is t2 that the second point for measuring temperature records temperature, t1*a+t2*b is as final
Value of feedback tf of measurement, arranges standard value tb in controller, and tf is more than the value increasing registration x during tb, and tf subtracts when being less than tb
The value of little registration x.
Preferably scheme is: described second spray chamber is using freezing Water spray.
The production method of the nylon-6 fiber designed by the present invention, is dried using ring and replaces cross air blasting, make melt in each side
Uniformly cool down upwards, effectively prevent the even phenomenon of tow ectonexine inhomogeneous cooling, reduce the yarn unevenness of tow, make silk
The Forming Quality of bundle greatly promotes, and also shortens cool time simultaneously, is used for the ring to tow in ring blowing spinning chiller
Blowing is divided into upper and lower two-layer and separate, and the pathogenic wind-warm of ring blowing can form two sections of independent controls, and cooling effect is more preferably (existing
The blowing of technology medium ring only has a kind of temperature), and upper layer circular air blow tilts upward that to be about to wind under blowout, tow down fast, slightly upwardly
The cooling wind blowing can be used for offsetting the descending impact bringing of tow, improves the cooling effect of the ejection section in as-spun fibre, lower floor
Ring is dried as main body, level blowout from ring Blowing drum, and this section of refrigerating mode is identical with traditional ring blowing, plays what spinning cooled down
Effect；Its at the middle and upper levels ring blowing temperature and humidity be less than lower layer circular air blow, on the one hand improve the cooling of the ejection section of as-spun fibre
Effect, the relatively low pathogenic wind-warm in upper strata mixes the overall cooling effect of raising with lower layer circular air blow, makes spinning cooling effect more preferably；Using
The nylon-6 fiber various aspects of performance that this method is obtained is excellent, has the good market competitiveness, can improve the benefit of enterprise.
Brief description
Fig. 1 is the ring blowing spinning chiller medium ring blowing device that adopted of production method of embodiment 1 nylon-6 fiber
Structural representation；
Fig. 2 is the enlarged drawing at a in Fig. 1；
Fig. 3 be embodiment 1 nylon-6 fiber the ring blowing spinning chiller that adopted of production method in air conditioning unit
System schematic；
Fig. 4 is the ring blowing spinning chiller medium ring blowing device that adopted of production method of embodiment 5 nylon-6 fiber
Structural representation；
Fig. 5 is the enlarged drawing of the first outer cylinder portion shown in Fig. 4；
Fig. 6 is the enlarged drawing at b in Fig. 5；
Fig. 7 is the schematic diagram of another kind of step motor drive structure in embodiment 5.
Specific embodiment
The invention will be further described to combine accompanying drawing below by embodiment.
Embodiment 1:
The production method of the nylon-6 fiber described by the present embodiment, comprises the steps:
A, chinlon 6 section is added in screw extruder carries out melt extruded；
B, the blend melt of melting is transported to spinning manifold, by dosing pump, melt extrusion is carried out in filament spinning component
Spinning；
C, cooling forming is carried out to tow with ring blowing using ring blowing spinning chiller, then the tow after cooling is entered
Row oils, and is used for being divided into upper and lower two-layer and separate, upper strata to the ring blowing of tow in described ring blowing spinning chiller
Ring blowing tilt upward blowout, lower layer circular air blow be main body, from ring Blowing drum level blowout, its at the middle and upper levels ring blowing temperature and
Humidity is less than lower layer circular air blow；
D, the tow after oiling is carried out pre- network by path and silk door, then tow is led with chilling roller, hot-rolling
Stretch, by the tow screening network after drawing-off, then tow importing mound bobbins are carried out high-speed winding and become cylinder；
E, after the assay was approved, packs to nylon-6 fiber.
Wherein: in described step a the thermal treatment zone of screw extruder be six, its temperature be 260 DEG C of an area, 265 DEG C of 2nd area,
Three 265 DEG C of areas, 265 DEG C of 4th area, 265 DEG C of 5th area, 265 DEG C of 6th area, melt pressure is 11.5mpa；Spinning manifold in described step b
Temperature be 265 DEG C；17.5 DEG C of temperature of ring blowing, speed are 0.4m/s to described step c at the middle and upper levels, humidity 65%, and lower floor's ring blows
Air temperature 18, speed are 0.4, humidity 67%.In described step d, drawing-off first carries out drawing-off using two chilling rollers, adopts two afterwards
Hot-rolling carries out drawing-off, and heat roller temperature is 150 DEG C, and drawing-off speed is 1.1；Winding speed is 4000m/min.
In order to realize above-mentioned technique, the ring blowing spinning chiller that spy is researched and developed using our company, adopt in step c
Ring blowing spinning chiller includes ring blowing device 101 and air conditioning unit 102, and described ring blowing device 101 includes machine
Frame 103, lift cylinders 104, elevating lever 105, the first blast pipe 106, the second blast pipe 107, the first outer tube 108, the second outer tube
109th, the 3rd outer tube 110, guiding air duct 111, ring Blowing drum 112 and airfast inner core 113；Described guiding air duct 111, ring
Blowing drum 112 and inner core 113 set gradually from top to bottom and communicate, and tow passes through between which and cooled down, described lifting
Cylinder 104 and elevating lever 105 frame 103 are located in frame 103, and the first blast pipe 106 and the second blast pipe 107 are also provided in frame
On 103, the first blast pipe 106 and the second blast pipe 107 are designed with deformation section 114 and regulating valve 115, deformation section 114 is arranged
Purpose be to coordinate lifting, the purpose of regulating valve 115 setting is to adjust wind speed；Described second outer tube 109 is even
It is connected on below the first outer tube 108, described 3rd outer tube 110 is connected to below the second outer tube 109, the piston of described lift cylinders 104
Bar is all connected with described 3rd outer tube 110 bottom with elevating lever 105 top, be provided with inside described first outer tube 108 described in lead
To air duct 111, described guiding air duct 111 is covered with the oblique through hole 154 of oblique up-draught；From oblique through hole 154, blowout is
Upper layer circular air blow；Described ring Blowing drum 112 is located in described second outer tube 109, is described from the wind of ring Blowing drum 112 blowout
Lower layer circular air blow, described inner core 113 is located in described 3rd outer tube 110 and bottom exceeds described 3rd outer tube 110；Described first
Region between outer tube 108 and guiding air duct 111 is the first ring-shaped cavity 116, described second outer tube 109 and ring Blowing drum 112
Between region be the second ring-shaped cavity 117, the region between described 3rd outer tube 110 and inner core 113 be the 3rd ring-shaped cavity
118, described first ring-shaped cavity 116 is not connected with the second ring-shaped cavity 117, described second ring-shaped cavity 117 and the 3rd ring-type
Cavity 118 connects, and described first blast pipe 106 is connected on the 3rd outer tube 110 and is communicated with described second ring-shaped cavity 117,
Described second blast pipe 107 is connected on the first outer tube 108 and is communicated with described first ring-shaped cavity 116, in the second outer tube 109
Bottom is provided with the retainer ring 119 being covered with through hole, and described ring Blowing drum 112 bottom is connected in retainer ring 119, described second outer tube
109 and the 3rd accompany ring-type mesh sheet 120 between outer tube 110；It is provided with ring-type homogenating plate 121, institute in described first ring-shaped cavity 116
State and the first equal air holes 122 is covered with ring-type homogenating plate 121；Described air conditioning unit 102 include fresh wind tube 131, backwind tube 132, row
Put pipe 133, return fan 134, return air spray chamber 135, drain valve 136, new air-valve 137, coarse filter 1, coarse filter 2 139,
Front-mounted heating device 140, preposition surface cooler 141, the first spray chamber 142, the second spray chamber 143, the first rearmounted surface cooler 144,
Two rearmounted surface coolers 145, the first rearmounted heater 146, the second rearmounted heater 147, the first pressure fan 148, the second pressure fan
149th, the first fine filter 150, the second fine filter 151, the first air outlet 152 and the second air outlet 153 is described fresh wind tube 131, thick
Filter 1, coarse filter 2 139, front-mounted heating device 140, preposition surface cooler 141 are sequentially connected, and new air-valve 137 is located at fresh wind tube
On 131, described backwind tube 132 is connected with fresh wind tube 131, and described return fan 134 and return air spray chamber 135 are located at backwind tube
On 132, described delivery pipe 133 is connected with backwind tube 132, and described drain valve 136 is located on delivery pipe 133, described preposition table
Cooler 141 connects two branch roads below, and wherein one branch road is sequentially provided with the first spray chamber 142, the first rearmounted surface cooler
144th, the first rearmounted heater 146, the first pressure fan 148 and the first air outlet 152, is in addition sequentially provided with second on a branch road
Spray chamber 143, the second rearmounted surface cooler 145, the second rearmounted heater 147, the second pressure fan 149 and the second air outlet 153, institute
State the first air outlet 152 to communicate with the first blast pipe 106 of ring blowing device 101, described second air outlet 153 and ring blowing fill
Put 101 the second blast pipe 107 to communicate.
This ring blowing spinning chiller, it air conditioning unit 102 has two outlets, it is possible to provide different pathogenic wind-warm and wet
Degree, during use, fresh air and workshop return air are respectively through fresh wind tube 131, coarse filter 1, coarse filter 2 139, front-mounted heating device
140th, preposition surface cooler 141 obtains preliminary treatment, enters two different branch roads respectively from preposition surface cooler 141 wind out,
Obtain spray chamber dedusting in each branch road, and control different temperature and humidity using rearmounted surface cooler with rearmounted heater,
Blow out (i.e. first air outlet 152 and second air outlet 153) from different air outlet after fine straining eventually, the first air outlet 152 with
First blast pipe 106 of ring blowing device 101 communicates, the second blast pipe of described second air outlet 153 and ring blowing device 101
107 communicate, and in ring blowing device 101, blast pipe based on the first blast pipe 106, from the cooling of the first air outlet 152 blowout
Wind enters the 3rd outer tube 110 through the first blast pipe 106, is the 3rd ring-shaped cavity 118, in this 3rd ring in the 3rd outer tube 110
In shape cavity 1187, cooling wind energy is enough uniformly distributed, and finally runs up, and enters through ring-type mesh sheet 120 and retainer ring 119
Second ring-shaped cavity 117, ring-type mesh sheet 120 and retainer ring 119 make the cooling wind running up become to be more uniformly distributed, the second ring
Cooling wind in shape cavity 117 has substantially eliminated the impact from the first blast pipe 106 single admission, makes the second ring chamber
Cooling wind pathogenic wind-warm blast all ratios within body 117 are more uniform, carry out main cooling eventually through ring Blowing drum 112 to tow, due to
Cooling wind ratio is more uniform, and cooling effect is more preferable；On the other hand, from the second air outlet 153 blowout cooling wind through the second blast pipe
107 enter the first outer tube 108 in, there is in the first outer tube 108 one piece of ring-type homogenating plate 121, ring-type homogenating plate 121 be also for
Eliminate the impact of single admission, make from second blast pipe 107 be blown into wind is evenly distributed, and eventually through guiding air duct
111 blow obliquely, and tow is cooled down, and on these, layer circular air blow tilts upward that to be about to wind under blowout, tow down fast, slightly to
On blow cooling wind can be used for offset the descending impact bringing of tow, improve as-spun fibre ejection section cooling effect, carry
High product quality；And the first ring-shaped cavity 116 does not connect with the second ring-shaped cavity 117, and both wind regimes are derived from independent propping up
Road, therefore can be independently controlled to upper layer circular air blow and lower layer circular air blow, to coordinate different products.This ring blowing is spun
Silk chiller, the height of the first outer tube 108 is much smaller than the second outer tube 109, typically can select between 1:5 to 1:10；Tiltedly lead to
The acclivitous angle in hole 154 can be chosen between 5 degree to 45 degree, such as 10 degree, 20 degree etc..Ring Blowing drum 112 is compared with knot
Structure, the structure that such as can be made with non-woven fabrics or wire netting.
Embodiment 2:
The production method of the nylon-6 fiber described by the present embodiment, the difference of control parameter as different from Example 1:
In described step a the thermal treatment zone of screw extruder be six, its temperature be 262 DEG C of an area, 268 DEG C of 2nd area, 268 DEG C of 3rd area, four
268 DEG C of area, 268 DEG C of 5th area, 268 DEG C of 6th area, melt pressure is 12.5mpa；In described step b, the temperature of spinning manifold is 270
℃；19.5 DEG C of temperature of ring blowing, speed are 0.5m/s to described step c at the middle and upper levels, humidity 78%, 20 DEG C of lower layer circular air blow temperature,
Speed is 0.5m/s, humidity 80%.In described step d, drawing-off first carries out drawing-off using two chilling rollers, after entered using two hot-rollings
Row drawing-off, heat roller temperature is 170 DEG C, and drawing-off speed is 1.1；Winding speed is 4200m/min.
Embodiment 3:
The production method of the nylon-6 fiber described by the present embodiment, the difference of control parameter as different from Example 2:
In described step a the thermal treatment zone of screw extruder be six, its temperature be 261 DEG C of an area, 267 DEG C of 2nd area, 267 DEG C of 3rd area, four
267 DEG C DEG C of area, 267 DEG C of 5th area, 267 DEG C of 6th area, melt pressure is 12mpa；In described step b, the temperature of spinning manifold is 267
℃；18 DEG C of temperature of ring blowing, speed are 0.4m/s to described step c at the middle and upper levels, humidity 70%, 18.5 DEG C of lower layer circular air blow temperature,
Speed is 0.4m/s, humidity 75%.In described step d, drawing-off first carries out drawing-off using two chilling rollers, after entered using two hot-rollings
Row drawing-off, heat roller temperature is 160 DEG C, and drawing-off speed is 1.1；Winding speed is 4100m/min.
The nylon-6 fiber performance parameter being obtained in above three embodiment is as follows:
Embodiment 4:
The production method of the nylon-6 fiber described by the present embodiment, difference from Example 1 is to ring blowing spinning
Chiller, as improving further, is additionally provided with annular fan cover 123 in described first outer tube 108, described annular fan cover 123 is pushed up
The undergauge section 124 in portion is connected on the first outer tube 108 by bearing 125, and the ring segment 126 of annular fan cover 123 bottom is covered with
Second equal air holes 129, the ring segment 126 of annular fan cover 123 bottom and ring-type homogenating plate 121 are arranged side by side, described annular fan cover
The undergauge section 124 at 123 tops exposes the first outer tube 108 upper surface and undergauge section 124 is provided with gear 127.
In the present embodiment, gear 127 rotates and annular fan cover 123 can be driven to rotate, the second equal wind after annular fan cover 123 rotation
The registration x of hole 129 and the first equal air holes 122 just there occurs change, enters guiding air duct 111 air quantity and also can be adjusted, root
According to different kinds, can be with manual adjustment gear 127 position, to obtain the registration adaptable with institute production product.
Embodiment 5:
The production method of the nylon-6 fiber described by the present embodiment, difference from Example 4 is to ring blowing spinning
As improving further, that is, described gear 127 and the motor 128 of its rotating of driving are in transmission connection chiller, step
Stepper motor 128 is controlled by controller 130, wherein: described first equal air holes 122 and the second equal their registration of air holes 129 are
X, controller 130 to adjust the size of registration x and then to control entrance guiding air duct 111 using controlling motor 128 to rotate
Air quantity.
Compared to embodiment 1, this is the introduction of and automatically controls, and so that pathogenic wind-warm is controlled more reasonable, can adjust gear 127 makes weight
Right x 50%, can choose a point for measuring temperature in the first ring-shaped cavity 116, carry out closed loop control to registration for x, temperature
Increase the value of registration x when spending high, increase cooling air quantity, improve cooling effect, when temperature is low, reduce the value of registration x, reduce
Cooling air quantity is it is ensured that cooling effect；Closed loop control can be controlled using pid.
In order to consider every possible angle to whole system, in described first ring-shaped cavity 116, it is provided with the first point for measuring temperature 155,
It is provided with the second point for measuring temperature 156, it is t1 that described first point for measuring temperature records temperature, the second point for measuring temperature records in second ring-shaped cavity 117
Temperature is t2, t1*a+t2*b, as value of feedback tf of final measurement, arranges standard value tb in controller 130, and tf is more than tb
The value of Shi Zeng great registration x, tf is less than the value reducing registration x during tb, because two crural ring blowings are true in ring Blowing drum 112
On be mixed with, therefore need to take into account the temperature of lower layer circular air blow, therefore using sampled signal is weighted process
Method, wherein a are more than b, and such as a is 0.9, b is 0.1, make the weight that the first ring-shaped cavity 116 records temperature be more than the second ring chamber
Body 117, because controller 130 can only be adjusted to the cooling wind in the first ring-shaped cavity 116.
The effect of regulating valve 115 is constant, and compared with technology, for controlled wind speed on deep bid, and controller 130 is using control
Motor 128 processed rotates and to adjust the size of registration x and then to control the air quantity entering guiding air duct 111 to be independently of adjusting
Valve 115, in general, regulating valve 115 is distant, there is lag situation in the controlling, and regulating valve 115 aperture changes to guiding
Air duct 111 air quantity changes needs the regular hour, controls insensitive, and precision of regulating valve 115 itself is problematic simultaneously；And I am public
This ring blowing spinning chiller of department's invention is provided with, in the nearest position of distance guiding air duct 111, the knot adjusting air quantity
Structure, delayed little, make area using the motor 128 being accurately controlled angle and move, control effect is good.Motor 128 sliding tooth
It is prior art that wheel 127 rotates, and can directly drive little gear 157 to engage with gear 127 using motor 128 as shown in Figure 6
To realize (gear 127 can improve control accuracy more than little gear 157), the structure of Fig. 7 to may also be employed, i.e. motor 128
Drive leading screw 158, leading screw 158 reciprocating slide block 159 screw thread can coordinate that (leading screw 158 may pass through with one on pedestal 160
Slide block 159), slide block 159 arranges gear 127 and engages, pedestal 160 can be located on the second blast pipe 107, could be secured to
On first outer tube 108；Motor 128 rotating can carry movable slider 159 to move back and forth, and realizes the rotation of gear 127, thus real
The regulation of existing registration x.
In embodiments above, using freezing Water spray, chilled water temperature is low, except temp effect for described second spray chamber 143
More preferably, it is more beneficial for manufacturing layer circular air blow.
Embodiment 6:
The production method of the nylon-6 fiber described by the present embodiment, for manufacturing chinlon 6 color silk, its step includes: a, general
Chinlon 6 section and Masterbatch mixing, mixed section are added in screw extruder to carry out melting together with Masterbatch and squeeze
Pressure, the weight of Masterbatch is the 3% of coupon weight；
B, the blend melt of melting is transported to spinning manifold, by dosing pump, melt extrusion is carried out in filament spinning component
Spinning；
C, cooling forming is carried out to tow with ring blowing using ring blowing spinning chiller, then the tow after cooling is entered
Row oils, and is used for being divided into upper and lower two-layer and separate, upper strata to the ring blowing of tow in described ring blowing spinning chiller
Ring blowing tilt upward blowout, lower layer circular air blow be main body, from ring Blowing drum level blowout, its at the middle and upper levels ring blowing temperature and
Humidity is less than lower layer circular air blow；
D, the tow after oiling is carried out pre- network by path and silk door, then tow is led with chilling roller, hot-rolling
Stretch, by the tow screening network after drawing-off, then tow importing mound bobbins are carried out high-speed winding and become cylinder；
E, after the assay was approved, packs to nylon-6 fiber.
Wherein: in described step a the thermal treatment zone of screw extruder be six, its temperature be 261 DEG C of an area, 266 DEG C of 2nd area,
Three 266 DEG C of areas, 266 DEG C of 4th area, 266 DEG C of 5th area, 266 DEG C of 6th area, melt pressure is 12mpa；Spinning manifold in described step b
Temperature is 267 DEG C；17.5 DEG C of temperature of ring blowing, speed are 0.4m/s to described step c at the middle and upper levels, humidity 70%, lower layer circular air blow
Temperature 18, speed are 0.4, humidity 72%.In described step d, drawing-off first carries out drawing-off using two chilling rollers, adopts two heat afterwards
Roller carries out drawing-off, and heat roller temperature is 150 DEG C, and drawing-off speed is 1.1；Winding speed is 4000m/min.
And produce the ring blowing spinning chiller that required ring blowing spinning chiller adopts our company's specially research,
Select and the ring blowing spinning chiller identical structure described in embodiment 1 or embodiment 5, there is identical technology
Effect.
Wherein Masterbatch can be chosen from the market, and the formula of our company may also be employed, and that is, Masterbatch is by pigment, carrier tree
Fat, dispersant are constituted, and vector resin selects chinlon 6 section, and dispersant adopts Tissuemat E, and (weight) ratio of preparing is 3: 6: 1,
Pigment can select as needed, such as selects pigment black.
Obtained chinlon 6 color silk has particular color, test performance: line density (dtex) 72.4, line density deviation ratio
(%) 0.16, line density coefficient of variation cv (%) 0.36, fracture strength (cn/dtex)
4.31, fracture strength coefficient of variation cv (%) 4.46, elongation at break (%) 36.6, extension at break coefficient of variation cv
(%) 7.09, boiling water shrinkage (%) 9.3, this bright and beautiful 6 synthetic fibre color mercerising pools uniformly, have good market value.
Above-described embodiment be only explanation for example to the design of the present invention it will be apparent that, the protection domain of this patent does not limit
In above-described embodiment.
Various equivalent modifications or supplement that those skilled in the art are made to above-described embodiment, all should fall into this patent
Protection domain.
Claims (7)
1. a kind of production method of nylon-6 fiber, is characterized in that comprising the steps:
A, chinlon 6 section is added in screw extruder carries out melt extruded；
B, the blend melt of melting is transported to spinning manifold, by dosing pump, melt extrusion is spun in filament spinning component
Silk；
C, cooling forming is carried out to tow with ring blowing using ring blowing spinning chiller, then on the tow after cooling is carried out
Oil, is used for the blowing of the ring of tow is divided into upper and lower two-layer and separate, upper strata ring blows in described ring blowing spinning chiller
Wind tilts upward blowout, lower layer circular air blow be main body, from ring Blowing drum level blowout, its at the middle and upper levels ring blowing temperature and humidity
Less than lower layer circular air blow；
D, the tow after oiling is carried out pre- network by path and silk door, then tow is carried out drawing-off with chilling roller, hot-rolling, will
Tow screening network after drawing-off, then tow importing mound bobbins are carried out high-speed winding and become cylinder；
E, after the assay was approved, packs to nylon-6 fiber；
Wherein, the ring blowing spinning chiller adopting in step c includes ring blowing device (101) and air conditioning unit (102),
Described ring blowing device (101) include frame (103), lift cylinders (104), elevating lever (105), the first blast pipe (106), second
Blast pipe (107), the first outer tube (108), the second outer tube (109), the 3rd outer tube (110), guiding air duct (111), ring Blowing drum
And airfast inner core (113) (112)；Described guiding air duct (111), ring Blowing drum (112) and inner core (113) are from top to bottom
Set gradually and communicate, described lift cylinders (104) and elevating lever (105) frame (103) are located in frame (103), the first air intake
Pipe (106) and the second blast pipe (107) are also provided in frame (103), on the first blast pipe (106) and the second blast pipe (107)
It is designed with deformation section (114) and regulating valve (115)；Described second outer tube (109) is connected to below the first outer tube (108), described
3rd outer tube (110) is connected to below the second outer tube (109), the piston rod of described lift cylinders (104) and elevating lever (105) top
All it is connected with described 3rd outer tube (110) bottom, inside described first outer tube (108), be provided with described guiding air duct (111), institute
State the oblique through hole (154) that oblique up-draught is covered with guiding air duct (111)；From oblique through hole (154), blowout is upper strata ring
Blowing；Described ring Blowing drum (112) is located in described second outer tube (109), and the wind blowing out from ring Blowing drum (112) is described
Lower layer circular air blow, described inner core (113) is located in described 3rd outer tube (110) and bottom exceeds described 3rd outer tube (110)；
Region between described first outer tube (108) and guiding air duct (111) is the first ring-shaped cavity (116), described second outer tube
(109) region and ring Blowing drum (112) between is the second ring-shaped cavity (117), described 3rd outer tube (110) and inner core
(113) region between is the 3rd ring-shaped cavity (118), and described first ring-shaped cavity (116) is with the second ring-shaped cavity (117) no
Connection, described second ring-shaped cavity (117) connected with the 3rd ring-shaped cavity (118), and described first blast pipe (106) is connected to the
Three outer tube (110) are upper and communicate with described second ring-shaped cavity (117), and described second blast pipe (107) is connected to the first outer tube
(108) communicate on and with described first ring-shaped cavity (116), be provided with, in the second outer tube (109) bottom, the retainer ring being covered with through hole
(119), described ring Blowing drum (112) bottom is connected in retainer ring (119), described second outer tube (109) and the 3rd outer tube
(110) accompany ring-type mesh sheet (120) between；It is provided with ring-type homogenating plate (121), described ring in described first ring-shaped cavity (116)
First equal air holes (122) is covered with shape homogenating plate (121)；Described air conditioning unit (102) include fresh wind tube (131), backwind tube
(132), delivery pipe (133), return fan (134), return air spray chamber (135), drain valve (136), new air-valve (137), coarse filter
One (138), coarse filter two (139), front-mounted heating device (140), preposition surface cooler (141), the first spray chamber (142), the second spray
Drench room (143), the first rearmounted surface cooler (144), the second rearmounted surface cooler (145), the first rearmounted heater (146), after second
Put heater (147), the first pressure fan (148), the second pressure fan (149), the first fine filter (150), the second fine filter
(151), the first air outlet (152) and the second air outlet (153), described fresh wind tube (131), coarse filter one (138), coarse filter two
(139), front-mounted heating device (140), preposition surface cooler (141) are sequentially connected, and new air-valve (137) is located on fresh wind tube (131), institute
State backwind tube (132) to be connected with fresh wind tube (131), described return fan (134) and return air spray chamber (135) are located at backwind tube
(132) on, described delivery pipe (133) is connected with backwind tube (132), and described drain valve (136) is located on delivery pipe (133),
Described preposition surface cooler (141) below connects two branch roads, wherein one article branch road is sequentially provided with the first spray chamber (142), the
One rearmounted surface cooler (144), the first rearmounted heater (146), the first pressure fan (148) and the first air outlet (152), in addition one
Be sequentially provided with bar branch road the second spray chamber (143), the second rearmounted surface cooler (145), the second rearmounted heater (147), second
First air intake of pressure fan (149) and the second air outlet (153), described first air outlet (152) and ring blowing device (101)
Pipe (106) communicates, and described second air outlet (153) is communicated with second blast pipe (107) of ring blowing device (101).
2. the production method of nylon-6 fiber according to claim 1, is characterized in that: described step c ring blowing temperature at the middle and upper levels
17.5～19.5 DEG C of degree, speed are 0.4～0.5m/s, humidity 65%～78%, and 18～20 DEG C of lower layer circular air blow temperature, speed are
0.4～0.5m/s, humidity 67%～80%.
3. the production method of nylon-6 fiber according to claim 2, is characterized in that: screw extruder in described step a
The thermal treatment zone is six, its temperature is 260～262 DEG C of an area, 265～268 DEG C of 2nd area, 265～268 DEG C of 3rd area, four areas 265～
268 DEG C, 265～268 DEG C of 5th area, 265～268 DEG C of 6th area, melt pressure be 11.5～12.5mpa；Manifold in described step b
The temperature of body is 265～270 DEG C；In described step d, drawing-off first carries out drawing-off using two chilling rollers, after carried out using two hot-rollings
Drawing-off, heat roller temperature is 150～170 DEG C, and drawing-off speed is 1.1；Winding speed is 4000～4200m/min.
4. the production method of nylon-6 fiber according to claim 1, is characterized in that also setting in described first outer tube (108)
There is annular fan cover (123), the undergauge section (124) at described annular fan cover (123) top is connected to the first outer tube by bearing (125)
(108), on, the ring segment (126) of annular fan cover (123) bottom is covered with the second equal air holes (129), annular fan cover (123) bottom
Ring segment (126) be arranged side by side with ring-type homogenating plate (121), the undergauge section (124) at described annular fan cover (123) top is exposed
First outer tube (108) upper surface and undergauge section (124) is provided with gear (127).
5. the production method of nylon-6 fiber according to claim 4, is characterized in that described gear (127) drives it with one
The motor (128) of rotating is in transmission connection, and motor (128) is controlled by controller (130), wherein: described first is equal
Air holes (122) and the second equal their registration of air holes (129) are x, and controller (130) is turned using control motor (128)
Move the size to adjust registration x and then control the air quantity entering guiding air duct (111).
6. the production method of nylon-6 fiber according to claim 5, is characterized in that in described first ring-shaped cavity (116)
It is provided with the first point for measuring temperature (155), is provided with the second point for measuring temperature (156) in the second ring-shaped cavity (117), described first point for measuring temperature is surveyed
Temperature is t1, it is t2 that the second point for measuring temperature records temperature, t1*a+t2*b as value of feedback tf of final measurement, in controller
(130) setting standard value tb in, tf is more than the value increasing registration x during tb, and tf is less than the value reducing registration x during tb.
7. the production method of nylon-6 fiber according to claim 6, is characterized in that described second spray chamber (143) adopts
Freezing Water spray.
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| CN201510201143.3A CN104805513B (en) | 2015-04-24 | 2015-04-24 | Production method of polyamide-6 fiber |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN105040131B (en) * | 2015-09-10 | 2017-05-31 | 浙江宝莲纤维科技有限公司 | A kind of spinning shaft system |
| CN105386140B (en) * | 2015-12-29 | 2018-04-27 | 重庆市大通茂纺织科技有限公司 | A kind of chemical fibre ring blows cooling means |
| CN109112648A (en) * | 2017-06-23 | 2019-01-01 | 江苏天地化纤有限公司 | A kind of tangent line air inlet type cooling device in spinning |
| CN110512293B (en) * | 2019-08-22 | 2022-02-25 | 安徽天瑞塑业有限公司 | Nylon yarn wire drawing production heat sink of environmental protection |
| CN113846387A (en) * | 2021-09-17 | 2021-12-28 | 扬州天富龙科技纤维有限公司 | Preparation process of waste cloth head foam spun monofilament 100D black polyester staple fiber |
| CN113802194B (en) * | 2021-09-17 | 2022-07-15 | 宁波天诚化纤有限公司 | Polypropylene-polyethylene composite fiber spinning equipment |
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Effective date of registration: 20161221 Address after: 464000 Guangshan, Henan province Guandu River Industrial Zone, No. Aviation Road, No. 1 Applicant after: Guangshan Qunli Chemical Fiber Co. Ltd. Address before: Guali town Xiaoshan District Hangzhou city 311243 dew Ting Cun Zhejiang province Zhejiang Meisibang Chemical Fiber Co. Ltd. Applicant before: Zhejiang Mesbon Chemical Fibre Limited |
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