CN103334169B - The preparation method of the light body fiber of a kind of colour - Google Patents
The preparation method of the light body fiber of a kind of colour Download PDFInfo
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- CN103334169B CN103334169B CN201310179110.4A CN201310179110A CN103334169B CN 103334169 B CN103334169 B CN 103334169B CN 201310179110 A CN201310179110 A CN 201310179110A CN 103334169 B CN103334169 B CN 103334169B
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Abstract
The present invention relates to a kind of colored light body fiber, particularly relate to the preparation method of the light body fiber of a kind of colour.Carry out according to the following steps: spinning after chip drying → color masterbatch syringe → screw extruder → winding shaping → winding.Preparation method's compact conformation of the light body fiber of colour, improving product class, improves the quality of products.
Description
Technical field
The present invention relates to a kind of colored light body fiber, particularly relate to the preparation method of the light body fiber of a kind of colour.
Background technology
The light body fiber producing processes of colour of the prior art is complicated, and product quality can not be guaranteed, and affects the quality of downstream product.
Summary of the invention
The present invention mainly solves the deficiencies in the prior art, provides a kind of preparation method scientific and reasonable, the preparation method of the light body fiber of colour of Improving The Quality of Products.
Above-mentioned technical problem of the present invention is mainly solved by following technical proposals:
A preparation method for the light body fiber of colour, carries out according to the following steps:
(1), chip drying:
Must reduce the water capacity in section before spinning, low speed spins and requires that section moisture content is below 0.005%, and high-speed spinning requires that the moisture content of section is below 0.003%, and the moisture content of section is wanted evenly, and amount of powder is few;
(1), pre-crystallized hot air circulating system process:
Section enters pre-crystallized fluid bed, air blows in section from bottom to top through web plate, the angle of inclination of web plate is 65 degree, take away the dust in section, each section fully contacts gas, heat transference efficiency is high, and cutting into slices, it is pre-crystallized not carry out with not being subject to applied mechanical load uniformly continous in crystallization process, and the section time of staying is even; The time of staying of section in pre-crystallized fluid bed is 40 minutes, and the intake velocity of air is 13Nm3/min;
Be provided with dust separator in pre-crystallized fluid bed, cut into slices with cut into slices in dust be separated through dust separator, the dust in section enters into dust separator, collect dust separator discharge dust time, dust discharge butterfly valve should be closed; The dust discharge speed of dust separator is 15m/min;
Air in pre-crystallized fluid bed, through the heating of circulating air heater, makes the circulating air in pre-crystallized fluid bed be warmed up to 190 DEG C, and the speed that circulating air heater heats up is 16 DEG C/min, and the time of circulating air heater insulation is uninterruptedly insulation in 24 hours;
Pre-crystallized fluid bed is ventilated by pre-crystallized blower fan;
(2), dry-heat air system process:
Section is after (1), and enter in the drying tower of dry-heat air system, compressed air dehumidifies through dehumidifier, makes compressed air reach the dew point of-80 DEG C, and the intake velocity of dry air is 1.0Nm3/min;
Drying heater in compressed air drying hot-air system after dehumidifying heats, and makes the temperature in compressed air rise to 190 DEG C from 10 DEG C, and the firing rate of drying heater is 12 DEG C/min;
Compressed air after heating enters in drying tower, and compressed air distribution of air flow parts in tower are shunted, and air-flow and section, in reverse flow, make compressed air fully contact with section, form stable piston flow, occur without section bonding phenomenon; The dry time is 40 minutes, and dry temperature is no more than 180 DEG C, and the compressed-air actuated moisture content that circulates is 30ppm, and chip drying terminates;
(2), color masterbatch syringe:
Dried section and Masterbatch are carried out Homogeneous phase mixing in proportion, section is 97:3 with the ratio of Masterbatch, section is A, B and C is the Masterbatch of different colours, open measuring room, put into measuring box, by computer work way selection switch-linear hybrid in " EOIT " mode, A, B, " H/KG " selector switch of C part is arranged on the position of A, in the corresponding unit of desired component upper one is extricated from front two in code switch and is set as 99, the quantity in the hole required for rear two inputs is 30 grams, the quantity in hole is the maximum volume amount weighing box, two components do not weighed are set as " 0000 ", at this moment just can press lower-weighing button to weigh,
A, B and C in color masterbatch syringe tri-the injection ratio of component should ensure A > B > C, 9%, the C component that B component can not exceed gross mass can not exceed 4% of gross mass,
The weight in every for A, B, C group hole is input to corresponding digital switch, first is ten, second is a position, three, four is latter two of decimal point, then by the percentage input digital switch above of corresponding for every component material, check whether the percentage sum of three components equals 100, otherwise computer display err signal, check errorless after, input service completes; Form solid slice;
When Bai Sishi produced by needs, only by machine switched off, component A metering disk need be taken off, with the cover plate of a stainless steel or aluminum, the bearing of exposure is protected, prevent dust from entering, then measuring room is rotated 180 degree, retighten and can start to spin white silk;
The maximum discharge-amount of color masterbatch syringe is 13600g/min; Voltage is: 380V, and electric current is: 50HZ ~ 60HZ; General power is: 1.2KW; Operating temperature: the temperature of control section is: 0 ~ 50 DEG C, the temperature of injector section is: room temperature ~ 160 DEG C;
(3), screw extruder:
Enter in paramount fast spinning screw extruder after step (two), spinning diameter is 75 ~ 200mm, and the excursion of the minimum and maximum extrusion capacity of high speed spinning screw extruder is 1:3, and best extrusion capacity is 65 ~ 80% of maximum extrusion capacity, nut stem material is steel alloy, and via nitride process; The cylindrical of screw rod and bottom land are respectively through polishing, and fineness is at ▽ more than 8; Screw sleeve inwall is lined with centrifugally cast hard alloy steel of 2 ~ 3mm, has very high ABRASION RESISTANCE and high rigidity, and heat transfer is even, long service life; Screw sleeve heating is made up of the porcelain piece electric heating coil heating element heater in 6 districts, and heating element heater adopts high frequency porcelain piece to leave no room for manoeuvre edge material; Heating-up temperature adopts each district independently one group of interconnection system cascade control system, heating accuracy controls at ± 1.5 DEG C, each district all has platinum resistance thermometer to carry out thermometric and temperature control, according to screw diameter determination heating power, the first two district's heating power is large, rear four district's heating powers are little, and according to the difference of each screw rod, the depth depending on screw rod groove can be divided into feed zone, compression section and metering mixing section;
Be divided into 6th district, the first two district is feed zone, and middle 2nd district are compression section, and rear 2nd district are metering mixing section;
The heating-up temperature in the firstth district is 280 DEG C ~ 285 DEG C, and the temperature retention time in the firstth district is 6 hours, and the heating power in the firstth district is 60KW, and the heat time heating time in the firstth district is 4 hours, and melt elapsed time is 7 ~ 10 minutes;
The heating-up temperature in the secondth district is 285 DEG C ~ 288 DEG C, and the temperature retention time in the secondth district is 6 hours, and the heating power in the secondth district is 60KW, and the heat time heating time in the secondth district is 4 hours, and melt elapsed time is 7 ~ 15 minutes;
The heating-up temperature in the 3rd district is 288 DEG C ~ 290 DEG C, and the temperature retention time in the 3rd district is 6 hours, and the heating power in the 3rd district is 60KW, and the heat time heating time in the 3rd district is 4 hours, and melt elapsed time is 7 ~ 15 minutes;
The heating-up temperature in the 4th district is 290 DEG C ~ 293 DEG C, and the temperature retention time in the 4th district is 6 hours, and the heating power in the 4th district is 60KW, and the heat time heating time in the 4th district is 4 hours, and melt elapsed time is 7 ~ 10 minutes;
The heating-up temperature in the 5th district is 293 DEG C ~ 296 DEG C, and the temperature retention time in the 5th district is 6 hours, and the heating power in the 5th district is 60KW, and the heat time heating time in the 5th district is 4 hours, and melt elapsed time is 7 ~ 10 minutes;
The heating-up temperature in the 6th district is 296 DEG C ~ 298 DEG C, and the temperature retention time in the 6th district is 6 hours, and the heating power in the 6th district is 60KW, and the heat time heating time in the 6th district is 4 hours, and melt elapsed time is 7 ~ 10 minutes;
Feed zone: its screw flight groove depth is 15mm, and screw thread is uniform pitch, solid slice enters in screw rod, be fed forward in process, solid slice is also softening by even preheating, and the length of feed zone should be equal to or greater than compression section 2 ~ 3D, and D represents the diameter of screw rod; The length of feed zone is 0.8m, and solid slice is 15 minutes through the time of feed zone;
Compression section: screw flight groove depth is 5mm, and compression section is converted into the process of melt by solid particle during feed zone, and in process, screw compression is 2.5 ~ 3.5 than with the physical compression ratio of material.The length of compression section is 0.5 meter, and melt is 10 minutes through the time of compression section;
Metering mixing section: screw flight groove depth is 7mm, in order to ensure that the even ratio of material and flowing are stablized, the length of metering mixing section is at least greater than 4D, D represents the diameter of screw rod, when metering section length increases, the adverse current of melt in extruder and leakage current amount reduce, output increases, the length of metering section is very large to the pressure influence of gage outfit melt, when length increases, melt increased in the time of staying of metering section, make melt evenly, metering is abundant, pressure oscillation reduces, and melt is 15 minutes through the time of metering mixing section; Melt composition strand;
(4), winding shaping:
Strand enters in up-coiler, namely enters low speed repiece process, and low speed repiece hourly velocity is 3000m/min, and through the running of 50S time, then be transformed into normal production status at a high speed, this hourly velocity reaches 4500m/min; Winding shaping is completed by two parts;
The godet system that Part I is made up of thread guide, shred suction opening, yarn cutter and prison silk device, its effect is that the strand got off from path is cut off by yarn cutter once there is undrawn yarn broken end, then by shred suction opening inspiration silk waste box;
Part II is the silk reciprocating apparatus driven by reversing shaft, auxiliary grooved roller, the winding head of friction roller and chuck composition, and its function has been continuous action, completes winding;
The friction roller of winding head is a synchronization external-rotor motor, to be powered startup, and high-precision ball bearing is housed, be coated with the hard chrome through polishing after surface grinding by static frequency converter;
Reciprocating apparatus is combined by traverse motion threadguide and reversing shaft, and strand moves back and forth piddler by traverse motion threadguide, guides on winding bobbin through auxiliary grooved roller; The commutation of traverse motion threadguide is carried out very slow, and thus inertia force is more weak; Reversing shaft is driven by tooth belt by auxiliary groove drum, and strand is 90 ° around the angle on auxiliary groove drum, and is embedded in groove, and with minimum reverse radius around on silk cylinder; Auxiliary groove drum is driven by asynchronous outer rotor motor, and high precision ball bearing is housed, and by static frequency converter for electric drive, for preventing roll overlap, static frequency converter also arranges interfering frequency, and the number of times of its interference is 1 ~ 20 time/min, and interference magnitude is 0 ~ 5%;
At winch spool pipe clamp built with high precision ball bearing, relaxed away by compressed air control automatic tightening and mistake; The depth of parallelism of the dynamic balancing of winch spool pipe clamp and it and friction roller is to playing an important role smoothly of reeling; Winding head is provided with tailfiber transfer device, the number of turns of the thickness that adjustable bottom silk batches and tailfiber; Winding also has winding bobbin maximum gauge with limit switch, when friction roller slide block constantly raises, when encountering limit switch, namely trigger dynamic switch, raised by friction roller, winding bobbin is braked simultaneously; In addition, once waste silk around entering auxiliary grooved roller or friction roller, mechanical scanning mechanism also can drive limit switch, and winding stops automatically; Whole actions of winding head are by pneumatic control, pneumatically operated pressure needed for it is 0.6mpa, the highest dew point is not higher than 4 DEG C, the compressed air of input will be 40um through precision and metre filter with dehydrator, for each winding yarn doffing cycle, the compressed air consumption of whole winding is 0.030m3; Pressure between friction roller and winding bobbin has bare bobbin bottom silk and normal winding third gear, and the pressure by input compressed-air regulates, and can automatically change;
(5), spinning after winding:
Temperature during spinning is 285 degree, and initial pressure during spinning is 10 ~ 15mpa; The technical parameter of spinnerets in up-coiler: the density of spinneret hole is 1.5 ~ 2.5 holes/cm
2, the diameter of spinneret hole is 0.25 ~ 0.3mm; Adopt the mode of lateral blowing to cool spinneret hole silk out, the wind speed of lateral blowing is 0.4 ~ 0.5m/s, and the scope of fluctuations in wind speed is less than ± 0.81m/s.
Therefore, the preparation method of the light body fiber of a kind of colour of the present invention, compact conformation, improving product class, improves the quality of products.
Detailed description of the invention
Below by embodiment, technical scheme of the present invention is described in further detail.
Embodiment 1: the preparation method of the light body fiber of a kind of colour, carry out according to the following steps:
(1), chip drying:
Must reduce the water capacity in section before spinning, low speed spins and requires that section moisture content is below 0.005%, and high-speed spinning requires that the moisture content of section is below 0.003%, and the moisture content of section is wanted evenly, and amount of powder is few;
(1), pre-crystallized hot air circulating system process:
Section enters pre-crystallized fluid bed, air blows in section from bottom to top through web plate, the angle of inclination of web plate is 65 degree, take away the dust in section, each section fully contacts gas, heat transference efficiency is high, and cutting into slices, it is pre-crystallized not carry out with not being subject to applied mechanical load uniformly continous in crystallization process, and the section time of staying is even; The time of staying of section in pre-crystallized fluid bed is 40 minutes, and the intake velocity of air is 13Nm3/min;
Be provided with dust separator in pre-crystallized fluid bed, cut into slices with cut into slices in dust be separated through dust separator, the dust in section enters into dust separator, collect dust separator discharge dust time, dust discharge butterfly valve should be closed; The dust discharge speed of dust separator is 15m/min;
Air in pre-crystallized fluid bed, through the heating of circulating air heater, makes the circulating air in pre-crystallized fluid bed be warmed up to 190 DEG C, and the speed that circulating air heater heats up is 16 DEG C/min, and the time of circulating air heater insulation is uninterruptedly insulation in 24 hours;
Pre-crystallized fluid bed is ventilated by pre-crystallized blower fan;
(2), dry-heat air system process:
Section is after (1), and enter in the drying tower of dry-heat air system, compressed air dehumidifies through dehumidifier, makes compressed air reach the dew point of-80 DEG C, and the intake velocity of dry air is 1.0Nm3/min;
Drying heater in compressed air drying hot-air system after dehumidifying heats, and makes the temperature in compressed air rise to 190 DEG C from 10 DEG C, and the firing rate of drying heater is 12 DEG C/min;
Compressed air after heating enters in drying tower, and compressed air distribution of air flow parts in tower are shunted, and air-flow and section, in reverse flow, make compressed air fully contact with section, form stable piston flow, occur without section bonding phenomenon; The dry time is 40 minutes, and dry temperature is no more than 180 DEG C, and the compressed-air actuated moisture content that circulates is 30ppm, and chip drying terminates;
(2), color masterbatch syringe:
Dried section and Masterbatch are carried out Homogeneous phase mixing in proportion, section is 97:3 with the ratio of Masterbatch, section is A, B and C is the Masterbatch of different colours, open measuring room, put into measuring box, by computer work way selection switch-linear hybrid in " EOIT " mode, A, B, " H/KG " selector switch of C part is arranged on the position of A, in the corresponding unit of desired component upper one is extricated from front two in code switch and is set as 99, the quantity in the hole required for rear two inputs is 30 grams, the quantity in hole is the maximum volume amount weighing box, two components do not weighed are set as " 0000 ", at this moment just can press lower-weighing button to weigh,
A, B and C in color masterbatch syringe tri-the injection ratio of component should ensure A > B > C, 9%, the C component that B component can not exceed gross mass can not exceed 4% of gross mass,
The weight in every for A, B, C group hole is input to corresponding digital switch, first is ten, second is a position, three, four is latter two of decimal point, then by the percentage input digital switch above of corresponding for every component material, check whether the percentage sum of three components equals 100, otherwise computer display err signal, check errorless after, input service completes; Form solid slice;
When Bai Sishi produced by needs, only by machine switched off, component A metering disk need be taken off, with the cover plate of a stainless steel or aluminum, the bearing of exposure is protected, prevent dust from entering, then measuring room is rotated 180 degree, retighten and can start to spin white silk;
The maximum discharge-amount of color masterbatch syringe is 13600g/min; Voltage is: 380V, and electric current is: 50HZ; General power is: 1.2KW; Operating temperature: the temperature of control section is: 0 DEG C, the temperature of injector section is: room temperature;
(3), screw extruder:
Enter in paramount fast spinning screw extruder after step (two), spinning diameter is 75mm, and the excursion of the minimum and maximum extrusion capacity of high speed spinning screw extruder is 1:3, and best extrusion capacity is 65% of maximum extrusion capacity, nut stem material is steel alloy, and via nitride process; The cylindrical of screw rod and bottom land are respectively through polishing, and fineness is at ▽ more than 8; Screw sleeve inwall is lined with centrifugally cast hard alloy steel of 2mm, has very high ABRASION RESISTANCE and high rigidity, and heat transfer is even, long service life; Screw sleeve heating is made up of the porcelain piece electric heating coil heating element heater in 6 districts, and heating element heater adopts high frequency porcelain piece to leave no room for manoeuvre edge material; Heating-up temperature adopts each district independently one group of interconnection system cascade control system, heating accuracy controls at ± 1.5 DEG C, each district all has platinum resistance thermometer to carry out thermometric and temperature control, according to screw diameter determination heating power, the first two district's heating power is large, rear four district's heating powers are little, and according to the difference of each screw rod, the depth depending on screw rod groove can be divided into feed zone, compression section and metering mixing section;
Be divided into 6th district, the first two district is feed zone, and middle 2nd district are compression section, and rear 2nd district are metering mixing section;
The heating-up temperature in the firstth district is 280 DEG C, and the temperature retention time in the firstth district is 6 hours, and the heating power in the firstth district is 60KW, and the heat time heating time in the firstth district is 4 hours, and melt elapsed time is 7 minutes;
The heating-up temperature in the secondth district is 285 DEG C, and the temperature retention time in the secondth district is 6 hours, and the heating power in the secondth district is 60KW, and the heat time heating time in the secondth district is 4 hours, and melt elapsed time is 7 minutes;
The heating-up temperature in the 3rd district is 288 DEG C, and the temperature retention time in the 3rd district is 6 hours, and the heating power in the 3rd district is 60KW, and the heat time heating time in the 3rd district is 4 hours, and melt elapsed time is 7 minutes;
The heating-up temperature in the 4th district is 290 DEG C, and the temperature retention time in the 4th district is 6 hours, and the heating power in the 4th district is 60KW, and the heat time heating time in the 4th district is 4 hours, and melt elapsed time is 7 minutes;
The heating-up temperature in the 5th district is 293 DEG C, and the temperature retention time in the 5th district is 6 hours, and the heating power in the 5th district is 60KW, and the heat time heating time in the 5th district is 4 hours, and melt elapsed time is 7 minutes;
The heating-up temperature in the 6th district is 296 DEG C, and the temperature retention time in the 6th district is 6 hours, and the heating power in the 6th district is 60KW, and the heat time heating time in the 6th district is 4 hours, and melt elapsed time is 7 ~ 10 minutes;
Feed zone: its screw flight groove depth is 15mm, and screw thread is uniform pitch, solid slice enters in screw rod, is being fed forward in process, and solid slice is also softening by even preheating, and the length of feed zone should be equal to or greater than compression section 2D, and D represents the diameter of screw rod; The length of feed zone is 0.8m, and solid slice is 15 minutes through the time of feed zone;
Compression section: screw flight groove depth is 5mm, and compression section is converted into the process of melt by solid particle during feed zone, and in process, screw compression is 2.5 than with the physical compression ratio of material.The length of compression section is 0.5 meter, and melt is 10 minutes through the time of compression section;
Metering mixing section: screw flight groove depth is 7mm, in order to ensure that the even ratio of material and flowing are stablized, the length of metering mixing section is at least greater than 4D, D represents the diameter of screw rod, when metering section length increases, the adverse current of melt in extruder and leakage current amount reduce, output increases, the length of metering section is very large to the pressure influence of gage outfit melt, when length increases, melt increased in the time of staying of metering section, make melt evenly, metering is abundant, pressure oscillation reduces, and melt is 15 minutes through the time of metering mixing section; Melt composition strand;
(4), winding shaping:
Strand enters in up-coiler, namely enters low speed repiece process, and low speed repiece hourly velocity is 3000m/min, and through the running of 50S time, then be transformed into normal production status at a high speed, this hourly velocity reaches 4500m/min; Winding shaping is completed by two parts;
The godet system that Part I is made up of thread guide, shred suction opening, yarn cutter and prison silk device, its effect is that the strand got off from path is cut off by yarn cutter once there is undrawn yarn broken end, then by shred suction opening inspiration silk waste box;
Part II is the silk reciprocating apparatus driven by reversing shaft, auxiliary grooved roller, the winding head of friction roller and chuck composition, and its function has been continuous action, completes winding;
The friction roller of winding head is a synchronization external-rotor motor, to be powered startup, and high-precision ball bearing is housed, be coated with the hard chrome through polishing after surface grinding by static frequency converter;
Reciprocating apparatus is combined by traverse motion threadguide and reversing shaft, and strand moves back and forth piddler by traverse motion threadguide, guides on winding bobbin through auxiliary grooved roller; The commutation of traverse motion threadguide is carried out very slow, and thus inertia force is more weak; Reversing shaft is driven by tooth belt by auxiliary groove drum, and strand is 90 ° around the angle on auxiliary groove drum, and is embedded in groove, and with minimum reverse radius around on silk cylinder; Auxiliary groove drum is driven by asynchronous outer rotor motor, and high precision ball bearing is housed, and by static frequency converter for electric drive, for preventing roll overlap, static frequency converter also arranges interfering frequency, and the number of times of its interference is 1 time/min, and interference magnitude is 0%;
At winch spool pipe clamp built with high precision ball bearing, relaxed away by compressed air control automatic tightening and mistake; The depth of parallelism of the dynamic balancing of winch spool pipe clamp and it and friction roller is to playing an important role smoothly of reeling; Winding head is provided with tailfiber transfer device, the number of turns of the thickness that adjustable bottom silk batches and tailfiber; Winding also has winding bobbin maximum gauge with limit switch, when friction roller slide block constantly raises, when encountering limit switch, namely trigger dynamic switch, raised by friction roller, winding bobbin is braked simultaneously; In addition, once waste silk around entering auxiliary grooved roller or friction roller, mechanical scanning mechanism also can drive limit switch, and winding stops automatically; Whole actions of winding head are by pneumatic control, pneumatically operated pressure needed for it is 0.6mpa, the highest dew point is not higher than 4 DEG C, the compressed air of input will be 40um through precision and metre filter with dehydrator, for each winding yarn doffing cycle, the compressed air consumption of whole winding is 0.030m3; Pressure between friction roller and winding bobbin has bare bobbin bottom silk and normal winding third gear, and the pressure by input compressed-air regulates, and can automatically change;
(5), spinning after winding:
Temperature during spinning is 285 degree, and initial pressure during spinning is 10mpa; The technical parameter of spinnerets in up-coiler: the density of spinneret hole is 1.5 holes/cm
2, the diameter of spinneret hole is 0.25mm; Adopt the mode of lateral blowing to cool spinneret hole silk out, the wind speed of lateral blowing is 0.4m/s, and the scope of fluctuations in wind speed is less than ± 0.81m/s.
Embodiment 2: the preparation method of the light body fiber of a kind of colour, carry out according to the following steps:
(1), chip drying:
Must reduce the water capacity in section before spinning, low speed spins and requires that section moisture content is below 0.005%, and high-speed spinning requires that the moisture content of section is below 0.003%, and the moisture content of section is wanted evenly, and amount of powder is few;
(1), pre-crystallized hot air circulating system process:
Section enters pre-crystallized fluid bed, air blows in section from bottom to top through web plate, the angle of inclination of web plate is 65 degree, take away the dust in section, each section fully contacts gas, heat transference efficiency is high, and cutting into slices, it is pre-crystallized not carry out with not being subject to applied mechanical load uniformly continous in crystallization process, and the section time of staying is even; The time of staying of section in pre-crystallized fluid bed is 40 minutes, and the intake velocity of air is 13Nm3/min;
Be provided with dust separator in pre-crystallized fluid bed, cut into slices with cut into slices in dust be separated through dust separator, the dust in section enters into dust separator, collect dust separator discharge dust time, dust discharge butterfly valve should be closed; The dust discharge speed of dust separator is 15m/min;
Air in pre-crystallized fluid bed, through the heating of circulating air heater, makes the circulating air in pre-crystallized fluid bed be warmed up to 190 DEG C, and the speed that circulating air heater heats up is 16 DEG C/min, and the time of circulating air heater insulation is uninterruptedly insulation in 24 hours;
Pre-crystallized fluid bed is ventilated by pre-crystallized blower fan;
(2), dry-heat air system process:
Section is after (1), and enter in the drying tower of dry-heat air system, compressed air dehumidifies through dehumidifier, makes compressed air reach the dew point of-80 DEG C, and the intake velocity of dry air is 1.0Nm3/min;
Drying heater in compressed air drying hot-air system after dehumidifying heats, and makes the temperature in compressed air rise to 190 DEG C from 10 DEG C, and the firing rate of drying heater is 12 DEG C/min;
Compressed air after heating enters in drying tower, and compressed air distribution of air flow parts in tower are shunted, and air-flow and section, in reverse flow, make compressed air fully contact with section, form stable piston flow, occur without section bonding phenomenon; The dry time is 40 minutes, and dry temperature is no more than 180 DEG C, and the compressed-air actuated moisture content that circulates is 30ppm, and chip drying terminates;
(2), color masterbatch syringe:
Dried section and Masterbatch are carried out Homogeneous phase mixing in proportion, section is 97:3 with the ratio of Masterbatch, section is A, B and C is the Masterbatch of different colours, open measuring room, put into measuring box, by computer work way selection switch-linear hybrid in " EOIT " mode, A, B, " H/KG " selector switch of C part is arranged on the position of A, in the corresponding unit of desired component upper one is extricated from front two in code switch and is set as 99, the quantity in the hole required for rear two inputs is 30 grams, the quantity in hole is the maximum volume amount weighing box, two components do not weighed are set as " 0000 ", at this moment just can press lower-weighing button to weigh,
A, B and C in color masterbatch syringe tri-the injection ratio of component should ensure A > B > C, 9%, the C component that B component can not exceed gross mass can not exceed 4% of gross mass,
The weight in every for A, B, C group hole is input to corresponding digital switch, first is ten, second is a position, three, four is latter two of decimal point, then by the percentage input digital switch above of corresponding for every component material, check whether the percentage sum of three components equals 100, otherwise computer display err signal, check errorless after, input service completes; Form solid slice;
When Bai Sishi produced by needs, only by machine switched off, component A metering disk need be taken off, with the cover plate of a stainless steel or aluminum, the bearing of exposure is protected, prevent dust from entering, then measuring room is rotated 180 degree, retighten and can start to spin white silk;
The maximum discharge-amount of color masterbatch syringe is 13600g/min; Voltage is: 380V, and electric current is: 55HZ; General power is: 1.2KW; Operating temperature: the temperature of control section is: 20 DEG C, the temperature of injector section is: 100 DEG C;
(3), screw extruder:
Enter in paramount fast spinning screw extruder after step (two), spinning diameter is 150mm, and the excursion of the minimum and maximum extrusion capacity of high speed spinning screw extruder is 1:3, and best extrusion capacity is 75% of maximum extrusion capacity, nut stem material is steel alloy, and via nitride process; The cylindrical of screw rod and bottom land are respectively through polishing, and fineness is at ▽ more than 8; Screw sleeve inwall is lined with centrifugally cast hard alloy steel of 2.5mm, has very high ABRASION RESISTANCE and high rigidity, and heat transfer is even, long service life; Screw sleeve heating is made up of the porcelain piece electric heating coil heating element heater in 6 districts, and heating element heater adopts high frequency porcelain piece to leave no room for manoeuvre edge material; Heating-up temperature adopts each district independently one group of interconnection system cascade control system, heating accuracy controls at ± 1.5 DEG C, each district all has platinum resistance thermometer to carry out thermometric and temperature control, according to screw diameter determination heating power, the first two district's heating power is large, rear four district's heating powers are little, and according to the difference of each screw rod, the depth depending on screw rod groove can be divided into feed zone, compression section and metering mixing section;
Be divided into 6th district, the first two district is feed zone, and middle 2nd district are compression section, and rear 2nd district are metering mixing section;
The heating-up temperature in the firstth district is 283 DEG C, and the temperature retention time in the firstth district is 6 hours, and the heating power in the firstth district is 60KW, and the heat time heating time in the firstth district is 4 hours, and melt elapsed time is 9 minutes;
The heating-up temperature in the secondth district is 287 DEG C, and the temperature retention time in the secondth district is 6 hours, and the heating power in the secondth district is 60KW, and the heat time heating time in the secondth district is 4 hours, and melt elapsed time is 10 minutes;
The heating-up temperature in the 3rd district is 289 DEG C, and the temperature retention time in the 3rd district is 6 hours, and the heating power in the 3rd district is 60KW, and the heat time heating time in the 3rd district is 4 hours, and melt elapsed time is 10 minutes;
The heating-up temperature in the 4th district is 292 DEG C, and the temperature retention time in the 4th district is 6 hours, and the heating power in the 4th district is 60KW, and the heat time heating time in the 4th district is 4 hours, and melt elapsed time is 8 minutes;
The heating-up temperature in the 5th district is 295 DEG C, and the temperature retention time in the 5th district is 6 hours, and the heating power in the 5th district is 60KW, and the heat time heating time in the 5th district is 4 hours, and melt elapsed time is 9 minutes;
The heating-up temperature in the 6th district is 297 DEG C, and the temperature retention time in the 6th district is 6 hours, and the heating power in the 6th district is 60KW, and the heat time heating time in the 6th district is 4 hours, and melt elapsed time is 9 minutes;
Feed zone: its screw flight groove depth is 15mm, and screw thread is uniform pitch, solid slice enters in screw rod, be fed forward in process, solid slice is also softening by even preheating, and the length of feed zone should be equal to or greater than compression section 2.5D, and D represents the diameter of screw rod; The length of feed zone is 0.8m, and solid slice is 15 minutes through the time of feed zone;
Compression section: screw flight groove depth is 5mm, and compression section is converted into the process of melt by solid particle during feed zone, and in process, screw compression is 3 than with the physical compression ratio of material.The length of compression section is 0.5 meter, and melt is 10 minutes through the time of compression section;
Metering mixing section: screw flight groove depth is 7mm, in order to ensure that the even ratio of material and flowing are stablized, the length of metering mixing section is at least greater than 4D, D represents the diameter of screw rod, when metering section length increases, the adverse current of melt in extruder and leakage current amount reduce, output increases, the length of metering section is very large to the pressure influence of gage outfit melt, when length increases, melt increased in the time of staying of metering section, make melt evenly, metering is abundant, pressure oscillation reduces, and melt is 15 minutes through the time of metering mixing section; Melt composition strand;
(4), winding shaping:
Strand enters in up-coiler, namely enters low speed repiece process, and low speed repiece hourly velocity is 3000m/min, and through the running of 50S time, then be transformed into normal production status at a high speed, this hourly velocity reaches 4500m/min; Winding shaping is completed by two parts;
The godet system that Part I is made up of thread guide, shred suction opening, yarn cutter and prison silk device, its effect is that the strand got off from path is cut off by yarn cutter once there is undrawn yarn broken end, then by shred suction opening inspiration silk waste box;
Part II is the silk reciprocating apparatus driven by reversing shaft, auxiliary grooved roller, the winding head of friction roller and chuck composition, and its function has been continuous action, completes winding;
The friction roller of winding head is a synchronization external-rotor motor, to be powered startup, and high-precision ball bearing is housed, be coated with the hard chrome through polishing after surface grinding by static frequency converter;
Reciprocating apparatus is combined by traverse motion threadguide and reversing shaft, and strand moves back and forth piddler by traverse motion threadguide, guides on winding bobbin through auxiliary grooved roller; The commutation of traverse motion threadguide is carried out very slow, and thus inertia force is more weak; Reversing shaft is driven by tooth belt by auxiliary groove drum, and strand is 90 ° around the angle on auxiliary groove drum, and is embedded in groove, and with minimum reverse radius around on silk cylinder; Auxiliary groove drum is driven by asynchronous outer rotor motor, and high precision ball bearing is housed, and by static frequency converter for electric drive, for preventing roll overlap, static frequency converter also arranges interfering frequency, and the number of times of its interference is 10 times/min, and interference magnitude is 2%;
At winch spool pipe clamp built with high precision ball bearing, relaxed away by compressed air control automatic tightening and mistake; The depth of parallelism of the dynamic balancing of winch spool pipe clamp and it and friction roller is to playing an important role smoothly of reeling; Winding head is provided with tailfiber transfer device, the number of turns of the thickness that adjustable bottom silk batches and tailfiber; Winding also has winding bobbin maximum gauge with limit switch, when friction roller slide block constantly raises, when encountering limit switch, namely trigger dynamic switch, raised by friction roller, winding bobbin is braked simultaneously; In addition, once waste silk around entering auxiliary grooved roller or friction roller, mechanical scanning mechanism also can drive limit switch, and winding stops automatically; Whole actions of winding head are by pneumatic control, pneumatically operated pressure needed for it is 0.6mpa, the highest dew point is not higher than 4 DEG C, the compressed air of input will be 40um through precision and metre filter with dehydrator, for each winding yarn doffing cycle, the compressed air consumption of whole winding is 0.030m3; Pressure between friction roller and winding bobbin has bare bobbin bottom silk and normal winding third gear, and the pressure by input compressed-air regulates, and can automatically change;
(5), spinning after winding:
Temperature during spinning is 285 degree, and initial pressure during spinning is 12mpa; The technical parameter of spinnerets in up-coiler: the density of spinneret hole is 2 holes/cm
2, the diameter of spinneret hole is 0.28mm; Adopt the mode of lateral blowing to cool spinneret hole silk out, the wind speed of lateral blowing is 0.45m/s, and the scope of fluctuations in wind speed is less than ± 0.81m/s.
Embodiment 3: the preparation method of the light body fiber of a kind of colour, carry out according to the following steps:
(1), chip drying:
Must reduce the water capacity in section before spinning, low speed spins and requires that section moisture content is below 0.005%, and high-speed spinning requires that the moisture content of section is below 0.003%, and the moisture content of section is wanted evenly, and amount of powder is few;
(1), pre-crystallized hot air circulating system process:
Section enters pre-crystallized fluid bed, air blows in section from bottom to top through web plate, the angle of inclination of web plate is 65 degree, take away the dust in section, each section fully contacts gas, heat transference efficiency is high, and cutting into slices, it is pre-crystallized not carry out with not being subject to applied mechanical load uniformly continous in crystallization process, and the section time of staying is even; The time of staying of section in pre-crystallized fluid bed is 40 minutes, and the intake velocity of air is 13Nm3/min;
Be provided with dust separator in pre-crystallized fluid bed, cut into slices with cut into slices in dust be separated through dust separator, the dust in section enters into dust separator, collect dust separator discharge dust time, dust discharge butterfly valve should be closed; The dust discharge speed of dust separator is 15m/min;
Air in pre-crystallized fluid bed, through the heating of circulating air heater, makes the circulating air in pre-crystallized fluid bed be warmed up to 190 DEG C, and the speed that circulating air heater heats up is 16 DEG C/min, and the time of circulating air heater insulation is uninterruptedly insulation in 24 hours;
Pre-crystallized fluid bed is ventilated by pre-crystallized blower fan;
(2), dry-heat air system process:
Section is after (1), and enter in the drying tower of dry-heat air system, compressed air dehumidifies through dehumidifier, makes compressed air reach the dew point of-80 DEG C, and the intake velocity of dry air is 1.0Nm3/min;
Drying heater in compressed air drying hot-air system after dehumidifying heats, and makes the temperature in compressed air rise to 190 DEG C from 10 DEG C, and the firing rate of drying heater is 12 DEG C/min;
Compressed air after heating enters in drying tower, and compressed air distribution of air flow parts in tower are shunted, and air-flow and section, in reverse flow, make compressed air fully contact with section, form stable piston flow, occur without section bonding phenomenon; The dry time is 40 minutes, and dry temperature is no more than 180 DEG C, and the compressed-air actuated moisture content that circulates is 30ppm, and chip drying terminates;
(2), color masterbatch syringe:
Dried section and Masterbatch are carried out Homogeneous phase mixing in proportion, section is 97:3 with the ratio of Masterbatch, section is A, B and C is the Masterbatch of different colours, open measuring room, put into measuring box, by computer work way selection switch-linear hybrid in " EOIT " mode, A, B, " H/KG " selector switch of C part is arranged on the position of A, in the corresponding unit of desired component upper one is extricated from front two in code switch and is set as 99, the quantity in the hole required for rear two inputs is 30 grams, the quantity in hole is the maximum volume amount weighing box, two components do not weighed are set as " 0000 ", at this moment just can press lower-weighing button to weigh,
A, B and C in color masterbatch syringe tri-the injection ratio of component should ensure A > B > C, 9%, the C component that B component can not exceed gross mass can not exceed 4% of gross mass,
The weight in every for A, B, C group hole is input to corresponding digital switch, first is ten, second is a position, three, four is latter two of decimal point, then by the percentage input digital switch above of corresponding for every component material, check whether the percentage sum of three components equals 100, otherwise computer display err signal, check errorless after, input service completes; Form solid slice;
When Bai Sishi produced by needs, only by machine switched off, component A metering disk need be taken off, with the cover plate of a stainless steel or aluminum, the bearing of exposure is protected, prevent dust from entering, then measuring room is rotated 180 degree, retighten and can start to spin white silk;
The maximum discharge-amount of color masterbatch syringe is 13600g/min; Voltage is: 380V, and electric current is: 60HZ; General power is: 1.2KW; Operating temperature: the temperature of control section is: 50 DEG C, the temperature of injector section is: 160 DEG C;
(3), screw extruder:
Enter in paramount fast spinning screw extruder after step (two), spinning diameter is 200mm, and the excursion of the minimum and maximum extrusion capacity of high speed spinning screw extruder is 1:3, and best extrusion capacity is 80% of maximum extrusion capacity, nut stem material is steel alloy, and via nitride process; The cylindrical of screw rod and bottom land are respectively through polishing, and fineness is at ▽ more than 8; Screw sleeve inwall is lined with centrifugally cast hard alloy steel of 3mm, has very high ABRASION RESISTANCE and high rigidity, and heat transfer is even, long service life; Screw sleeve heating is made up of the porcelain piece electric heating coil heating element heater in 6 districts, and heating element heater adopts high frequency porcelain piece to leave no room for manoeuvre edge material; Heating-up temperature adopts each district independently one group of interconnection system cascade control system, heating accuracy controls at ± 1.5 DEG C, each district all has platinum resistance thermometer to carry out thermometric and temperature control, according to screw diameter determination heating power, the first two district's heating power is large, rear four district's heating powers are little, and according to the difference of each screw rod, the depth depending on screw rod groove can be divided into feed zone, compression section and metering mixing section;
Be divided into 6th district, the first two district is feed zone, and middle 2nd district are compression section, and rear 2nd district are metering mixing section;
The heating-up temperature in the firstth district is 285 DEG C, and the temperature retention time in the firstth district is 6 hours, and the heating power in the firstth district is 60KW, and the heat time heating time in the firstth district is 4 hours, and melt elapsed time is 10 minutes;
The heating-up temperature in the secondth district is 288 DEG C, and the temperature retention time in the secondth district is 6 hours, and the heating power in the secondth district is 60KW, and the heat time heating time in the secondth district is 4 hours, and melt elapsed time is 15 minutes;
The heating-up temperature in the 3rd district is 290 DEG C, and the temperature retention time in the 3rd district is 6 hours, and the heating power in the 3rd district is 60KW, and the heat time heating time in the 3rd district is 4 hours, and melt elapsed time is 15 minutes;
The heating-up temperature in the 4th district is 293 DEG C, and the temperature retention time in the 4th district is 6 hours, and the heating power in the 4th district is 60KW, and the heat time heating time in the 4th district is 4 hours, and melt elapsed time is 10 minutes;
The heating-up temperature in the 5th district is 296 DEG C, and the temperature retention time in the 5th district is 6 hours, and the heating power in the 5th district is 60KW, and the heat time heating time in the 5th district is 4 hours, and melt elapsed time is 10 minutes;
The heating-up temperature in the 6th district is 298 DEG C, and the temperature retention time in the 6th district is 6 hours, and the heating power in the 6th district is 60KW, and the heat time heating time in the 6th district is 4 hours, and melt elapsed time is 10 minutes;
Feed zone: its screw flight groove depth is 15mm, and screw thread is uniform pitch, solid slice enters in screw rod, is being fed forward in process, and solid slice is also softening by even preheating, and the length of feed zone should be equal to or greater than compression section 3D, and D represents the diameter of screw rod; The length of feed zone is 0.8m, and solid slice is 15 minutes through the time of feed zone;
Compression section: screw flight groove depth is 5mm, and compression section is converted into the process of melt by solid particle during feed zone, and in process, screw compression is 3.5 than with the physical compression ratio of material.The length of compression section is 0.5 meter, and melt is 10 minutes through the time of compression section;
Metering mixing section: screw flight groove depth is 7mm, in order to ensure that the even ratio of material and flowing are stablized, the length of metering mixing section is at least greater than 4D, D represents the diameter of screw rod, when metering section length increases, the adverse current of melt in extruder and leakage current amount reduce, output increases, the length of metering section is very large to the pressure influence of gage outfit melt, when length increases, melt increased in the time of staying of metering section, make melt evenly, metering is abundant, pressure oscillation reduces, and melt is 15 minutes through the time of metering mixing section; Melt composition strand;
(4), winding shaping:
Strand enters in up-coiler, namely enters low speed repiece process, and low speed repiece hourly velocity is 3000m/min, and through the running of 50S time, then be transformed into normal production status at a high speed, this hourly velocity reaches 4500m/min; Winding shaping is completed by two parts;
The godet system that Part I is made up of thread guide, shred suction opening, yarn cutter and prison silk device, its effect is that the strand got off from path is cut off by yarn cutter once there is undrawn yarn broken end, then by shred suction opening inspiration silk waste box;
Part II is the silk reciprocating apparatus driven by reversing shaft, auxiliary grooved roller, the winding head of friction roller and chuck composition, and its function has been continuous action, completes winding;
The friction roller of winding head is a synchronization external-rotor motor, to be powered startup, and high-precision ball bearing is housed, be coated with the hard chrome through polishing after surface grinding by static frequency converter;
Reciprocating apparatus is combined by traverse motion threadguide and reversing shaft, and strand moves back and forth piddler by traverse motion threadguide, guides on winding bobbin through auxiliary grooved roller; The commutation of traverse motion threadguide is carried out very slow, and thus inertia force is more weak; Reversing shaft is driven by tooth belt by auxiliary groove drum, and strand is 90 ° around the angle on auxiliary groove drum, and is embedded in groove, and with minimum reverse radius around on silk cylinder; Auxiliary groove drum is driven by asynchronous outer rotor motor, and high precision ball bearing is housed, and by static frequency converter for electric drive, for preventing roll overlap, static frequency converter also arranges interfering frequency, and the number of times of its interference is 20 times/min, and interference magnitude is 5%;
At winch spool pipe clamp built with high precision ball bearing, relaxed away by compressed air control automatic tightening and mistake; The depth of parallelism of the dynamic balancing of winch spool pipe clamp and it and friction roller is to playing an important role smoothly of reeling; Winding head is provided with tailfiber transfer device, the number of turns of the thickness that adjustable bottom silk batches and tailfiber; Winding also has winding bobbin maximum gauge with limit switch, when friction roller slide block constantly raises, when encountering limit switch, namely trigger dynamic switch, raised by friction roller, winding bobbin is braked simultaneously; In addition, once waste silk around entering auxiliary grooved roller or friction roller, mechanical scanning mechanism also can drive limit switch, and winding stops automatically; Whole actions of winding head are by pneumatic control, pneumatically operated pressure needed for it is 0.6mpa, the highest dew point is not higher than 4 DEG C, the compressed air of input will be 40um through precision and metre filter with dehydrator, for each winding yarn doffing cycle, the compressed air consumption of whole winding is 0.030m3; Pressure between friction roller and winding bobbin has bare bobbin bottom silk and normal winding third gear, and the pressure by input compressed-air regulates, and can automatically change;
(5), spinning after winding:
Temperature during spinning is 285 degree, and initial pressure during spinning is 15mpa; The technical parameter of spinnerets in up-coiler: the density of spinneret hole is 2.5 holes/cm
2, the diameter of spinneret hole is 0.3mm; Adopt the mode of lateral blowing to cool spinneret hole silk out, the wind speed of lateral blowing is 0.5m/s, and the scope of fluctuations in wind speed is less than ± 0.81m/s.
Claims (1)
1. a preparation method for the light body fiber of colour, is characterized in that carrying out according to the following steps:
(1), chip drying:
Must reduce the water capacity in section before spinning, low speed spins and requires that section moisture content is below 0.005%, and high-speed spinning requires that the moisture content of section is below 0.003%, and the moisture content of section is wanted evenly, and amount of powder is few;
(1), pre-crystallized hot air circulating system process:
Section enters pre-crystallized fluid bed, air blows in section from bottom to top through web plate, the angle of inclination of web plate is 65 degree, take away the dust in section, each section fully contacts gas, heat transference efficiency is high, and cutting into slices, it is pre-crystallized not carry out with not being subject to applied mechanical load uniformly continous in crystallization process, and the section time of staying is even; The time of staying of section in pre-crystallized fluid bed is 40 minutes, and the intake velocity of air is 13Nm3/min;
Be provided with dust separator in pre-crystallized fluid bed, cut into slices with cut into slices in dust be separated through dust separator, the dust in section enters into dust separator, collect dust separator discharge dust time, dust discharge butterfly valve should be closed; The dust discharge speed of dust separator is 15m/min;
Air in pre-crystallized fluid bed, through the heating of circulating air heater, makes the circulating air in pre-crystallized fluid bed be warmed up to 190 DEG C, and the speed that circulating air heater heats up is 16 DEG C/min, and the time of circulating air heater insulation is uninterruptedly insulation in 24 hours;
Pre-crystallized fluid bed is ventilated by pre-crystallized blower fan;
(2), dry-heat air system process:
Section is after (1), and enter in the drying tower of dry-heat air system, compressed air dehumidifies through dehumidifier, makes compressed air reach the dew point of-80 DEG C, and the intake velocity of dry air is 1.0Nm3/min;
Drying heater in compressed air drying hot-air system after dehumidifying heats, and makes the temperature in compressed air rise to 190 DEG C from 10 DEG C, and the firing rate of drying heater is 12 DEG C/min;
Compressed air after heating enters in drying tower, and compressed air distribution of air flow parts in tower are shunted, and air-flow and section, in reverse flow, make compressed air fully contact with section, form stable piston flow, occur without section bonding phenomenon; The dry time is 40 minutes, and dry temperature is no more than 180 DEG C, and the compressed-air actuated moisture content that circulates is 30ppm, and chip drying terminates;
(2), color masterbatch syringe:
Dried section and Masterbatch are carried out Homogeneous phase mixing in proportion, section is 97:3 with the ratio of Masterbatch, section is A, B and C is the Masterbatch of different colours, open measuring room, put into measuring box, by computer work way selection switch-linear hybrid in " EOIT " mode, A, B, " H/KG " selector switch of C part is arranged on the position of A, in the corresponding unit of desired component upper one is extricated from front two in code switch and is set as 99, the quantity in the hole required for rear two inputs is 30 grams, the quantity in hole is the maximum volume amount weighing box, two components do not weighed are set as " 0000 ", at this moment just can press lower-weighing button to weigh,
A, B and C in color masterbatch syringe tri-the injection ratio of component should ensure A > B > C, 9%, the C component that B component can not exceed gross mass can not exceed 4% of gross mass,
The weight in every for A, B, C group hole is input to corresponding digital switch, first is ten, second is a position, three, four is latter two of decimal point, then by the percentage input digital switch above of corresponding for every component material, check whether the percentage sum of three components equals 100, otherwise computer display err signal, check errorless after, input service completes; Form solid slice;
When Bai Sishi produced by needs, only by machine switched off, component A metering disk need be taken off, with the cover plate of a stainless steel or aluminum, the bearing of exposure is protected, prevent dust from entering, then measuring room is rotated 180 degree, retighten and can start to spin white silk;
The maximum discharge-amount of color masterbatch syringe is 13600g/min; Voltage is: 380V, and electric current is: 50HZ ~ 60HZ; General power is: 1.2KW; Operating temperature: the temperature of control section is: 0 ~ 50 DEG C, the temperature of injector section is: room temperature ~ 160 DEG C;
(3), screw extruder:
Enter in paramount fast spinning screw extruder after step (two), spinning diameter is 75 ~ 200mm, and the excursion of the minimum and maximum extrusion capacity of high speed spinning screw extruder is 1:3, and best extrusion capacity is 65 ~ 80% of maximum extrusion capacity, nut stem material is steel alloy, and via nitride process; The cylindrical of screw rod and bottom land are respectively through polishing, and fineness is at ▽ more than 8; Screw sleeve inwall is lined with centrifugally cast hard alloy steel of 2 ~ 3mm, has very high ABRASION RESISTANCE and high rigidity, and heat transfer is even, long service life; Screw sleeve heating is made up of the porcelain piece electric heating coil heating element heater in 6 districts, and heating element heater adopts high frequency porcelain piece to leave no room for manoeuvre edge material; Heating-up temperature adopts each district independently one group of interconnection system cascade control system, heating accuracy controls at ± 1.5 DEG C, each district all has platinum resistance thermometer to carry out thermometric and temperature control, according to screw diameter determination heating power, the first two district's heating power is large, rear four district's heating powers are little, and according to the difference of each screw rod, the depth depending on screw rod groove can be divided into feed zone, compression section and metering mixing section;
Be divided into 6th district, the first two district is feed zone, and middle 2nd district are compression section, and rear 2nd district are metering mixing section;
The heating-up temperature in the firstth district is 280 DEG C ~ 285 DEG C, and the temperature retention time in the firstth district is 6 hours, and the heating power in the firstth district is 60KW, and the heat time heating time in the firstth district is 4 hours, and melt elapsed time is 7 ~ 10 minutes;
The heating-up temperature in the secondth district is 285 DEG C ~ 288 DEG C, and the temperature retention time in the secondth district is 6 hours, and the heating power in the secondth district is 60KW, and the heat time heating time in the secondth district is 4 hours, and melt elapsed time is 7 ~ 15 minutes;
The heating-up temperature in the 3rd district is 288 DEG C ~ 290 DEG C, and the temperature retention time in the 3rd district is 6 hours, and the heating power in the 3rd district is 60KW, and the heat time heating time in the 3rd district is 4 hours, and melt elapsed time is 7 ~ 15 minutes;
The heating-up temperature in the 4th district is 290 DEG C ~ 293 DEG C, and the temperature retention time in the 4th district is 6 hours, and the heating power in the 4th district is 60KW, and the heat time heating time in the 4th district is 4 hours, and melt elapsed time is 7 ~ 10 minutes;
The heating-up temperature in the 5th district is 293 DEG C ~ 296 DEG C, and the temperature retention time in the 5th district is 6 hours, and the heating power in the 5th district is 60KW, and the heat time heating time in the 5th district is 4 hours, and melt elapsed time is 7 ~ 10 minutes;
The heating-up temperature in the 6th district is 296 DEG C ~ 298 DEG C, and the temperature retention time in the 6th district is 6 hours, and the heating power in the 6th district is 60KW, and the heat time heating time in the 6th district is 4 hours, and melt elapsed time is 7 ~ 10 minutes;
Feed zone: its screw flight groove depth is 15mm, and screw thread is uniform pitch, solid slice enters in screw rod, be fed forward in process, solid slice is also softening by even preheating, and the length of feed zone should be equal to or greater than compression section 2 ~ 3D, and D represents the diameter of screw rod; The length of feed zone is 0.8m, and solid slice is 15 minutes through the time of feed zone;
Compression section: screw flight groove depth is 5mm, and compression section is converted into the process of melt by solid particle during feed zone, and in process, screw compression is 2.5 ~ 3.5 than with the physical compression ratio of material; The length of compression section is 0.5 meter, and melt is 10 minutes through the time of compression section;
Metering mixing section: screw flight groove depth is 7mm, in order to ensure that the even ratio of material and flowing are stablized, the length of metering mixing section is at least greater than 4D, D represents the diameter of screw rod, when metering section length increases, the adverse current of melt in extruder and leakage current amount reduce, output increases, the length of metering section is very large to the pressure influence of gage outfit melt, when length increases, melt increased in the time of staying of metering section, make melt evenly, metering is abundant, pressure oscillation reduces, and melt is 15 minutes through the time of metering mixing section; Melt composition strand;
(4), winding shaping:
Strand enters in up-coiler, namely enters low speed repiece process, and low speed repiece hourly velocity is 3000m/min, and through the running of 50S time, then be transformed into normal production status at a high speed, this hourly velocity reaches 4500m/min; Winding shaping is completed by two parts;
The godet system that Part I is made up of thread guide, shred suction opening, yarn cutter and prison silk device, its effect is that the strand got off from path is cut off by yarn cutter once there is undrawn yarn broken end, then by shred suction opening inspiration silk waste box;
Part II is the silk reciprocating apparatus driven by reversing shaft, auxiliary grooved roller, the winding head of friction roller and chuck composition, and its function has been continuous action, completes winding;
The friction roller of winding head is a synchronization external-rotor motor, to be powered startup, and high-precision ball bearing is housed, be coated with the hard chrome through polishing after surface grinding by static frequency converter;
Reciprocating apparatus is combined by traverse motion threadguide and reversing shaft, and strand moves back and forth piddler by traverse motion threadguide, guides on winding bobbin through auxiliary grooved roller; The commutation of traverse motion threadguide is carried out very slow, and thus inertia force is more weak; Reversing shaft is driven by tooth belt by auxiliary groove drum, and strand is 90 ° around the angle on auxiliary groove drum, and is embedded in groove, and with minimum reverse radius around on silk cylinder; Auxiliary groove drum is driven by asynchronous outer rotor motor, and high precision ball bearing is housed, and by static frequency converter for electric drive, for preventing roll overlap, static frequency converter also arranges interfering frequency, and the number of times of its interference is 1 ~ 20 time/min, and interference magnitude is 0 ~ 5%;
At winch spool pipe clamp built with high precision ball bearing, relaxed away by compressed air control automatic tightening and mistake; The depth of parallelism of the dynamic balancing of winch spool pipe clamp and it and friction roller is to playing an important role smoothly of reeling; Winding head is provided with tailfiber transfer device, the number of turns of the thickness that adjustable bottom silk batches and tailfiber; Winding also has winding bobbin maximum gauge with limit switch, when friction roller slide block constantly raises, when encountering limit switch, namely trigger dynamic switch, raised by friction roller, winding bobbin is braked simultaneously; In addition, once waste silk around entering auxiliary grooved roller or friction roller, mechanical scanning mechanism also can drive limit switch, and winding stops automatically; Whole actions of winding head are by pneumatic control, pneumatically operated pressure needed for it is 0.6mpa, the highest dew point is not higher than 4 DEG C, the compressed air of input will be 40um through precision and metre filter with dehydrator, for each winding yarn doffing cycle, the compressed air consumption of whole winding is 0.030m3; Pressure between friction roller and winding bobbin has bare bobbin bottom silk and normal winding third gear, and the pressure by input compressed-air regulates, and can automatically change;
(5), spinning after winding:
Temperature during spinning is 285 degree, and initial pressure during spinning is 10 ~ 15mpa; The technical parameter of spinnerets in up-coiler: the density of spinneret hole is 1.5 ~ 2.5 holes/cm
2, the diameter of spinneret hole is 0.25 ~ 0.3mm; Adopt the mode of lateral blowing to cool spinneret hole silk out, the wind speed of lateral blowing is 0.4 ~ 0.5m/s, and the scope of fluctuations in wind speed is less than ± 0.81m/s.
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| CN112126992B (en) * | 2020-07-28 | 2021-07-23 | 东华大学 | Preparation method of color gradient fiber |
| CN112111791B (en) * | 2020-09-01 | 2021-07-23 | 杭州新天元织造有限公司 | Environment-friendly high-elasticity color-difference-free garment fabric zero-dyeing spinning process |
| CN116676676B (en) * | 2023-06-02 | 2024-03-19 | 浙江古纤道股份有限公司 | Processing method of color-changing yarn |
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|---|---|---|---|---|
| CN101343792A (en) * | 2008-08-27 | 2009-01-14 | 卢新荣 | Method for manufacturing colorful silk |
| CN101397698A (en) * | 2008-10-15 | 2009-04-01 | 常熟市海欣复合材料有限公司 | Colour superfine polyester-nylon complex fiber and its processing method |
| CN101638813A (en) * | 2009-08-25 | 2010-02-03 | 江苏菲霖纤维科技有限公司 | Producing method for spinning heterogeneous colored terylene preoriented continuous yarn by recycled polyester bottle sheet materials |
| CN102168320A (en) * | 2011-04-21 | 2011-08-31 | 江苏菲霖纤维科技有限公司 | Production technology for producing porous fine denier colored terylene pre-oriented filament by utilizing recycled polyester bottle flakes |
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| JP2003293214A (en) * | 2002-03-29 | 2003-10-15 | Toray Ind Inc | Method for producing spun-dyed fiber and apparatus for melt spinning and winding |
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Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101343792A (en) * | 2008-08-27 | 2009-01-14 | 卢新荣 | Method for manufacturing colorful silk |
| CN101397698A (en) * | 2008-10-15 | 2009-04-01 | 常熟市海欣复合材料有限公司 | Colour superfine polyester-nylon complex fiber and its processing method |
| CN101638813A (en) * | 2009-08-25 | 2010-02-03 | 江苏菲霖纤维科技有限公司 | Producing method for spinning heterogeneous colored terylene preoriented continuous yarn by recycled polyester bottle sheet materials |
| CN102168320A (en) * | 2011-04-21 | 2011-08-31 | 江苏菲霖纤维科技有限公司 | Production technology for producing porous fine denier colored terylene pre-oriented filament by utilizing recycled polyester bottle flakes |
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