CN216663318U - Industrial bio-based polyamide spinning drafting and winding combination machine - Google Patents

Abstract

The utility model discloses an industrial bio-based polyamide spinning, drafting and winding combination machine, which comprises a screw extruder, a melt pipeline, a spinning box body, a metering pump, a spinning assembly, a slow cooler, a monomer suction mechanism, a side blowing component, a channel component, a double-sided oiling mechanism, a pre-network component, a yarn guide component, a feeding yarn dividing tension roller, a first heating plate, a first pair of drafting hot rollers, a second heating plate, a second pair of drafting hot rollers, a third heating plate, a third pair of drafting hot rollers, a fourth heating plate, a fourth pair of drafting hot rollers, a fifth pair of drafting hot rollers, a final network component and a full-automatic winding head which are sequentially arranged according to a production process, the two adjacent rotary directions of the filament bundle wound through the first pair of drawing hot rollers, the second pair of drawing hot rollers, the third pair of drawing hot rollers and the fourth pair of drawing hot rollers are opposite. The combination machine can be used for spinning fine denier bio-based polyamide fibers and coarse denier bio-based polyamide fibers.

Description

Industrial bio-based polyamide spinning drafting and winding combination machine

Technical Field

The utility model relates to the technical field of spinning production and manufacturing, in particular to an industrial bio-based polyamide spinning drafting and winding combination machine.

Background

At present, polyamide on the market is almost produced by a petrochemical method, a biological method is used for replacing the petroleum method, the polyamide industry is changed into a sustainable development industry, and the demand of bio-based polyamide fiber is greatly increased.

The biological polyamide fiber has excellent physical performance similar to common polyamide, especially 55dtex-111dtex fine denier biological polyamide fiber in medical treatment, 1670dtex-2222dtex coarse denier biological polyamide fiber in decorative, tyre cord fabric, cable, conveying belt, textile for automobile, filtering material and other industries. However, 555dtex-1670dtex bio-based polyamide fiber is spun in the related technology, and fine denier and coarse denier bio-based polyamide fiber spinning is lacked.

SUMMERY OF THE UTILITY MODEL

The application provides an industrial bio-based polyamide spinning drafting and winding combination machine, which solves the technical problems of lack of fine denier bio-based polyamide fibers and spinning of coarse denier bio-based polyamide fibers in the related technology.

The application provides an industrial bio-based polyamide spinning drafting and winding combination machine, which comprises a screw extruder, a melt pipeline, a spinning box body, a metering pump, a spinning assembly, a slow cooler, a monomer suction mechanism, a side blowing component, a channel component, a double-sided oiling mechanism, a pre-network component, a yarn guide component, a feeding yarn dividing tension roller, a first heating plate, a first pair of drafting hot rollers, a second heating plate, a second pair of drafting hot rollers, a third heating plate, a third pair of drafting hot rollers, a fourth heating plate, a fourth pair of drafting hot rollers, a fifth pair of drafting hot rollers, a final network component and a full-automatic winding head, wherein the first heating plate, the second heating plate, the third heating plate, the fourth heating plate and the fifth heating plate heat tows in the area between the two adjacent rollers, the tows wind through the rotating direction of the first pair of drafting hot rollers, the spinning direction of the tows, the second heating plate, the third heating plate, the fourth heating plate and the fifth heating plate, the full-automatic winding head, and the spinning head, And adjacent two rotation directions in the rotation directions of the second pair of drawing hot rollers, the third pair of drawing hot rollers and the fourth pair of drawing hot rollers are arranged in opposite directions so as to spin 55dtex-2222dtex of the bio-based polyamide industrial yarn.

Optionally, the feeding splitting tension roller adopts a fixed cold roller matched with an angle-adjustable splitting tension roller, and the first pair of drafting hot rollers, the second pair of drafting hot rollers, the third pair of drafting hot rollers, the fourth pair of drafting hot rollers and the fifth pair of drafting hot rollers adopt angle-adjustable hot rollers matched with angle-adjustable hot rollers; the first pair of drawing hot rollers are low-temperature rollers, and the second pair of drawing hot rollers, the third pair of drawing hot rollers, the fourth pair of drawing hot rollers and the fifth pair of drawing hot rollers are high-temperature rollers; the drawing ratio of the feeding yarn dividing tension roller to the first pair of drawing hot rollers is kept between 1: (1.04-1.08), the draft ratio of the first pair of drawing heat rollers to the second pair of drawing heat rollers is 1.5 to 3.5 times, the draft ratio of the second pair of drawing heat rollers to the third pair of drawing heat rollers is 2.0 to 3.5 times, the draft ratio of the third pair of drawing heat rollers to the fourth pair of drawing heat rollers is generally 1.7 to 2.5 times, and the draft ratio of the fourth pair of drawing heat rollers to the fifth pair of drawing heat rollers is 0.9-1.0 times.

Optionally, when spinning 55dtex to 111dtex biological polyamide industrial yarn, the first heating plate is set to be at 50-65 ℃, the first pair of drafting hot rollers is set to be at 75-100 ℃, when spinning 1670dtex to 2222dtex biological polyamide industrial yarn, the first heating plate is set to be at 70-90 ℃, and the first pair of drafting hot rollers is set to be at 75-100 ℃; the heating temperature of the second heating plate is set to be 95-115 ℃, and the temperature of the second pair of drafting hot rollers is set to be 110-145 ℃; the heating temperature of the third heating plate is set to 110-155 ℃, and the temperature of the third pair of drafting hot rollers is set to 130-150 ℃; the heating temperature of the fourth heating plate is set to 125-195 ℃, and the temperature of the fourth pair of drafting hot rollers is set to 130-150 ℃; the heating temperature of the fifth heating plate is set to be 140-220 ℃, and the temperature of the fifth pair of drafting hot rollers is set to be 130-210 ℃.

Optionally, an extruder screw is arranged in the screw extruder, the extruder screw comprises a screw feeding section, a screw compression section and a screw metering section, one end of the screw feeding section is detachably connected with one end of the screw compression section, and the other end of the screw compression section is detachably connected with one end of the screw metering section; the screw extruder is provided with an extrusion head, the extrusion head comprises a pressure sensor for detecting the pressure value of the melt, and the extrusion head is provided with a pre-filtering ring in the melt channel.

Optionally, the melt pipeline comprises a melt main pipe, a plurality of melt branch pipes, a plurality of delivery pumps and melt pipeline melt pressure measuring elements, one end of the melt main pipe is connected with the screw extruder, one ends of the melt branch pipes are communicated with the other end of the melt main pipe, the other ends of the melt branch pipes are connected with the spinning boxes one by one, the delivery pumps are installed on the melt branch pipes one by one, the melt pipeline melt pressure measuring elements are installed on the melt main pipe, wherein the spinning boxes are provided with the spinning box melt pressure measuring elements, the melt pipeline melt pressure measuring elements and the spinning box melt pressure measuring elements are connected with the electrical frequency converter, and the delivery pumps are regulated and controlled by the auxiliary electrical frequency converter.

Optionally, the melt pipe comprises a melt pipe heater assembly and a plurality of melt pipe temperature measuring elements, the melt pipe heater assembly is mounted on the melt main pipe and the melt branch pipes, and the plurality of melt pipe temperature measuring elements are mounted on the plurality of melt branch pipes one by one to detect the temperature of the melt flowing through the melt branch pipes;

the melt pipe heater assembly comprises a plurality of melt pipe electric heaters and melt pipe metal fillers, the plurality of melt pipe electric heaters are arranged around the melt main pipe and the melt branch pipes, and the melt pipe metal fillers are arranged between the melt pipe electric heaters and the wall of the melt pipe cavity of the melt main pipe and between the melt pipe electric heaters and the wall of the melt pipe cavity of the melt branch pipes.

Optionally, the spinning manifold comprises an upper manifold, a lower manifold, a metering pump, a detachable pump base, a spinning assembly, a manifold pipeline, an upper manifold heater assembly, a lower manifold heater assembly and a spinning manifold metal filler, the lower manifold is fixedly connected with the upper manifold, the metering pump is mounted on the detachable pump base, the metering pump and the detachable pump base are both arranged in the upper manifold, the spinning assembly is arranged in the lower manifold, the manifold pipeline comprises a communicating melt pipeline and a detachable pump base, and a communicating detachable pump base and a spinning assembly, the upper manifold heater assembly is arranged in the upper manifold, and the lower manifold heater assembly is arranged in the lower manifold; the spinning box metal fillers are respectively arranged in the upper box body and the lower box body.

Optionally, the monomer suction mechanism comprises a suction body, a suction assembly and a plurality of rectifying heating plates, the suction body is provided with a body channel communicated with the spinning assembly, a slow cooler is arranged between the monomer suction mechanism and the spinning assembly, and the slow cooler sprays superheated steam to the tows coming out of the spinning assembly to form hot steam containing monomers; the suction assembly comprises a suction pipeline communicated with the body channel, a vacuum pump arranged on the suction pipeline, a compressed air pipeline with one end for introducing compressed air, and a heating coil arranged around the suction pipeline, wherein the other end of the compressed air pipeline extends into the suction pipeline between the suction body and the vacuum pump, and the heating coil is arranged between the suction body and the compressed air pipeline; the plurality of rectifying heating plates are arranged in the body channel at intervals, a rectifying channel communicated with the suction pipeline is formed in the body channel, and hot steam containing monomers is adsorbed to the suction pipeline through the rectifying channel.

Optionally, the suction pipeline comprises a first straight pipe section, a second inclined pipe section, a third straight pipe section, a fourth inclined pipe section and a fifth straight pipe section which are connected in sequence, the first straight pipe section is fixedly connected with the suction body, the heating coil is arranged on the first straight pipe section, the vacuum pump is mounted at the other end of the fifth straight pipe section, the suction pipeline further comprises an exhaust pipe, and the exhaust pipe is mounted at the other end of the vacuum pump; one end of the compressed air pipeline is provided with a nozzle, the nozzle is internally arranged in the suction pipeline and is arranged at the junction of the second inclined pipe section and the third straight pipe section, and the opening of the nozzle faces the third straight pipe section so as to form a primary negative pressure area in the third straight pipe section; the inner diameter of the third straight pipe section is smaller than that of the fifth straight pipe section, so that a secondary negative pressure area is formed in the fourth inclined pipe section; the third straight pipe section has an inner diameter smaller than that of the first straight pipe section.

Optionally, two-sided oiling mechanism is including a pair of oil ship that is located the silk bundle both sides, a pair of oil ship is upper and lower dislocation distribution, the oil ship includes the transmission shaft, oil wheel shell and fuel feeding capillary, the oil wheel shell is coaxial fixed with the transmission shaft, the outer peripheral edges of oil wheel shell is equipped with the oil ship surface recess that circumference was arranged, be equipped with oil ship oil storage chamber in the oil wheel shell, the oil ship shell is equipped with the oil outlet along a plurality of interval arrangements of circumference, oil outlet one end switches on with oil ship oil storage chamber, the oil outlet other end switches on to oil ship surface recess, oil ship surface recess is configured and is contacted with silk bundle looks activity, fuel feeding capillary one end and oil ship oil storage chamber intercommunication, with to oil ship oil storage chamber fuel feeding.

The beneficial effect of this application is as follows:

(1) the application provides a spinning, drafting and winding combination machine for industrial bio-based polyamide, which is characterized in that a bio-based polyamide raw material enters a melt pipeline in a melt form through a screw extruder, and sequentially passes through a spinning box, a metering pump and a spinning assembly to form tows, then passes through a slow cooler to prevent temperature shock, is removed from monomers in time through a monomer suction mechanism, passes through a side blowing component and a channel component to be oiled on a double-sided oiling mechanism, and enters the drafting and winding;

(2) after passing through the pre-network part and the yarn guide part, the yarn passes through a feeding yarn dividing tension roller, a first pair of drafting hot rollers, a second pair of drafting hot rollers, a third pair of drafting hot rollers, a fourth pair of drafting hot rollers and a fifth pair of drafting hot rollers in sequence along the advancing direction of the yarn bundle, the rotating direction of the yarn bundle wound through the first pair of drafting hot rollers is opposite to the rotating direction of the yarn bundle wound through the second pair of drafting hot rollers, the rotating direction of the yarn bundle wound through the second pair of drafting hot rollers is opposite to the rotating direction of the yarn bundle wound through the third pair of drafting hot rollers, the rotating direction of the yarn bundle wound through the third pair of drafting hot rollers is opposite to the rotating direction of the yarn bundle wound through the fourth pair of drafting hot rollers, so that the left side and the right side of the yarn bundle are both heated, the crystallinity and the orientation degree of the fiber are favorably improved, the strength and the modulus of the fiber can be gradually improved, the stepwise drafting can be matched with the multi-stage drafting, the bio-based polyamide industrial yarn of 55dtex-2222dtex can be spun, thereby being used for spinning 55dtex to 111dtex fine denier bio-based polyamide fiber and 1670dtex to 2222dtex coarse denier bio-based polyamide fiber;

(3) still through set up the hot plate between two adjacent pairs of rollers, heat the regional silk bundle between two adjacent rollers through the hot plate, be favorable to improving fibrous crystallinity and orientation degree, can improve fibrous intensity and modulus gradually.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention.

FIG. 1 is a schematic view of the overall structure of an industrial bio-based polyamide spinning, drafting and winding combination machine provided by the present application;

FIG. 2 is a schematic view of the draft winding section of FIG. 1;

FIG. 3 is a side view of FIG. 2;

FIG. 4 is a schematic view of the operation of the filament bundle of FIG. 2 feeding a dividing tension roll to a first pair of drawing hot rolls;

FIG. 5 is a top view of the structure of FIG. 4;

FIG. 6 is an enlarged schematic view at A in FIG. 5;

FIG. 7 is a schematic drawing of the operation of the tow of FIG. 2 from the first pair of draw thermo rolls to the second pair of draw thermo rolls;

FIG. 8 is a top view of the structure of FIG. 7;

FIG. 9 is an enlarged schematic view at B of FIG. 8;

FIG. 10 is a schematic drawing of the operation of the second pair of draw rolls to the third pair of draw rolls of FIG. 2;

FIG. 11 is a top view of the structure of FIG. 10;

FIG. 12 is an enlarged schematic view at C of FIG. 11;

FIG. 13 is a schematic drawing of the operation of the third pair of draw rolls to the fourth pair of draw rolls of FIG. 2;

FIG. 14 is a top view of the structure of FIG. 13;

FIG. 15 is an enlarged schematic view at D of FIG. 14;

FIG. 16 is a schematic view showing the operation of the filament bundle of the fourth to fifth pairs of drawing heat rolls of FIG. 2

FIG. 17 is a top view of the structure of FIG. 16;

FIG. 18 is an enlarged schematic view at E of FIG. 17;

FIG. 19 is a schematic view of the heating plate shown in FIG. 2;

FIG. 20 is a schematic cross-sectional view taken at A-A of FIG. 19;

FIG. 21 is another schematic cross-sectional view of the heating panel of FIG. 19;

FIG. 22 is a schematic view of a screw extruder of FIG. 1;

FIG. 23 is a schematic view of the extruder screw of FIG. 22;

FIG. 24 is an enlarged view of a portion of FIG. 23 at A;

FIG. 25 is an enlarged view of a portion of FIG. 23 at B;

FIG. 26 is a schematic illustration of the screw extruder and melt line and spinning beam of FIG. 1;

FIG. 27 is an elevation view of the melt duct of FIG. 26;

FIG. 28 is a side view of the melt tube of FIG. 26;

FIG. 29 is a top view of the melt tube of FIG. 26;

FIG. 30 is a front view of the spin basket of FIG. 26;

FIG. 31 is a vertical cross-sectional view of the spin basket of FIG. 26;

FIG. 32 is a horizontal cross-sectional view of the spin basket of FIG. 26;

FIG. 33 is a schematic view of the spin pack, quencher, and monomer-pumping mechanism of FIG. 1;

FIG. 34 is a schematic view of a portion of the structure of FIG. 33;

FIG. 35 is a schematic view showing the detailed structure of the pumping assembly of the single pumping mechanism of FIG. 33;

FIG. 36 is a schematic cross-sectional view taken at A-A of FIG. 33;

FIG. 37 is a schematic cross-sectional view taken at B-B of FIG. 33;

FIG. 38 is a schematic cross-sectional view taken at C-C of FIG. 36;

FIG. 39 is a schematic diagram of a double-sided oiling mechanism of FIG. 1;

figure 40 is a schematic view of a pair of tankers of figure 39;

figure 41 is a schematic view of the specific structure of the tanker of figure 40;

figure 42 is a schematic view of a portion of the tanker of figure 41;

FIG. 43 is a schematic cross-sectional view taken at A-A of FIG. 41;

FIG. 44 is a schematic illustration of the tow of FIG. 39 being routed through a pair of tankers;

fig. 45 is a top view schematic diagram of the structure shown in fig. 44.

The attached drawings are marked as follows: 100-screw extruder, 110-screw feed section, 111-first shaft bore, 120-screw compression section, 121-first lobe, 122-second lobe, 123-third lobe, 123 a-first dowel, 124-second shaft bore, 130-screw metering section, 131-fourth lobe, 132-fifth lobe, 133-sixth lobe, 133 a-second dowel, 140-mixing head, 150-key joint, 200-extrusion head, 300-melt pipe, 310-melt header, 320-melt branch, 330-delivery pump, 340-melt pipe melt pressure measurement element, 350-static mixer, 360-melt pipe heater assembly, 361-melt pipe electric heater, 362-melt pipe metal filler, 370-melt channel temperature measuring element, 400-spinning beam, 410-upper beam, 411-upper beam temperature measuring element, 412-upper beam cover, 413-spinning beam melt pressure measuring element, 420-lower beam, 421-lower beam temperature measuring element, 430-beam channel, 440-upper beam heater assembly, 441-upper beam base heater, 442-upper beam auxiliary heater, 443-upper beam regulating heater, 450-lower beam heater assembly, 451-lower beam base heater, 452-lower beam regulating heater, 460-spinning beam metal filler, 470-upper beam melt inlet, 481-metering pump thermal block, 482-pump plate, 483-detachable pump mount, 490-gasket, 500-metering pump, 600-spinning assembly, 700-slow cooling device, 710-slow cooling heat-equalizing body, 711-slow cooling filament bundle chamber, 713-injection chamber, 714-clapboard, 714 a-injection hole, 720-steam pipeline, 721-pressure reducing valve, 722-superheated steam inlet pipe, 800-monomer suction mechanism, 810-suction body, 811-body channel, 812-suction port, 820-suction assembly, 821-suction pipeline, 821 a-first straight pipe section, 821 b-second inclined pipe section, 821 c-third straight pipe section, 821 cc-primary negative pressure area, 821 d-fourth inclined pipe section, 821 dd-secondary negative pressure area, 821 e-fifth straight pipe section, 821 f-exhaust pipe, 822-vacuum pump, 823-compressed air pipeline, 823 a-nozzle, 823 b-air pressure regulating valve, 823 bb-first pressure gauge, 824-heating coil, 825-hot water tank, 826-second pressure gauge, 830-rectifying heating plate, 840-transition heater, 841-plate heater, 842-plate temperature measuring element, 900-side blowing part, 1000-channel part, 1100-double-sided oiling mechanism, 1110-transmission shaft, 1111-through hole, 1120-oil wheel shell, 1121-left end cover, 1122-first right end cover, 1123-one-way check plate, 1124-oil wheel inner shell, 1125-oil wheel outer shell, 1125 a-oil wheel surface groove, 1125 b-oil outlet hole, 1126-oil wheel oil storage cavity, 1127-second right end cover, 1127 a-cavity, 1128-sealing gasket, 1130-oil supply capillary tube, 1131-first L-shaped capillary, 1132-second L-shaped capillary, 1140-oil receiving box, 1141-overflow hole, 1151-first tension bar, 1152-second tension bar, 1153-oil loading wheel, 1154-oil unloading wheel, 1200-pre-network part, 1300-wire guiding part, 1400-feeding wire-separating tension roller, 1410-fixed cold roller, 1420-angle-adjustable wire-dividing roller, 1510-first heating plate, 1520-second heating plate, 1530-third heating plate, 1540-fourth heating plate, 1550-fifth heating plate, 1501-heat transfer block, 1502-heating bar, 1503-open slot, 1600-first pair of drafting, 1700-second pair of heating roller, 1800-third pair of drafting heating roller, 1900-fourth pair of drafting heating roller, 2000-fifth pair of drafting heating roller, 2100-final network element, 10-tow M surface, 20-tow N surface, 30-tow.

Detailed Description

The embodiment of the application solves the technical problem that fine denier bio-based polyamide fibers and coarse denier bio-based polyamide fibers are lack in the related technology by providing an industrial bio-based polyamide spinning drafting winding combination machine.

In order to solve the technical problems, the general idea of the embodiment of the application is as follows:

the industrial bio-based polyamide spinning, drafting and winding combination machine comprises a screw extruder, a melt pipeline, a spinning box body, a metering pump, a spinning assembly, a slow cooler, a monomer suction mechanism, a side blowing part, a channel part, a double-sided oiling mechanism, a pre-network part, a yarn guide part, a feeding yarn dividing tension roller, a first heating plate, a first pair of drafting hot rollers, a second heating plate, a second pair of drafting hot rollers, a third heating plate, a third pair of drafting hot rollers, a fourth heating plate, a fourth pair of drafting hot rollers, a fifth pair of drafting hot rollers, a final network part and a full-automatic winding head which are sequentially arranged according to a production process, wherein the first heating plate, the second heating plate, the third heating plate, the fourth heating plate and the fifth heating plate heat the tows in an area between the two adjacent rollers, the tows are wound in the rotating direction of the first pair of drafting hot rollers, and wound in the rotating direction of the second pair of drafting hot rollers, The adjacent two rotating directions in the rotating directions of the third pair of drawing hot rollers and the fourth pair of drawing hot rollers are oppositely arranged so as to spin 55dtex-2222dtex of the bio-based polyamide industrial yarn.

In order to better understand the technical solution, the technical solution will be described in detail with reference to the drawings and the specific embodiments.

Example 1

Referring to fig. 1 to 18 and fig. 30 to 33, the present embodiment discloses an industrial bio-based polyamide spinning drafting and winding combination machine, which includes a screw extruder 100, a melt pipe 300, a spinning beam 400, a metering pump 500, a spinning assembly 600, a slow cooler 700, a monomer suction mechanism 800, a side blowing component 900, a duct component 1000, a double-sided oiling mechanism 1100, a pre-network component 1200, a yarn guiding component 1300, a feeding yarn separating tension roller 1400, a first heating plate 1510, a first pair of drafting heat rollers 1600, a second heating plate 1520, a second pair of drafting heat rollers 1700, a third heating plate 1530, a third pair of drafting heat rollers 1800, a fourth heating plate 1540, a fourth pair of drafting heat rollers 1900, a fifth pair of drafting heat rollers 1550, a fifth pair of drafting heat rollers 2000, a final network component 2100 and a full-automatic winding head, which are sequentially disposed according to a production process.

The first heating plate 1510, the second heating plate 1520, the third heating plate 1530, the fourth heating plate 1540, and the fifth heating plate 1550 heat the filament bundle in the area between the two adjacent rollers. The filament bundle is wound through the rotary directions of the first pair of drawing hot rollers 1600, the second pair of drawing hot rollers 1700, the third pair of drawing hot rollers 1800 and the fourth pair of drawing hot rollers 1900, and the adjacent rotary directions are opposite to each other, so as to spin 55dtex-2222dtex bio-based polyamide industrial yarn.

Specifically, referring to fig. 2 and 3, the filament bundle passes through a feeding filament-separating tension roller 1400, a first pair of drawing hot rollers 1600, a second pair of drawing hot rollers 1700, a third pair of drawing hot rollers 1800, a fourth pair of drawing hot rollers 1900, and a fifth pair of drawing hot rollers 2000 in sequence, and then passes through a final network part 2100 to be wound on a winder. Before feeding the yarn splitting tension roller 1400, the spun yarn passes through the spinning assembly, sequentially passes through the double-sided oiling mechanism 1100, the pre-network component 1200 and the yarn guide component 1300, and then passes through the feeding yarn splitting tension roller 1400.

In this embodiment, the peripheral side of the tow is divided into a tow M surface 10 on one side and a tow N surface 20 on the other side. Clockwise and counterclockwise directions in the following description are described with reference to the figures.

Referring to fig. 4 to 6, when the filament bundle runs from the feeding yarn dividing tension roller 1400 to the first pair of drawing heat rollers 1600, the winding direction of the filament bundle fed to the yarn dividing tension roller 1400 is counterclockwise, and the winding direction of the filament bundle at the first pair of drawing heat rollers 1600 is counterclockwise. Wherein, the feeding yarn dividing tension roller 1400 is directly contacted and heated with the surface 20 of the filament bundle N, and the first pair of drafting hot rollers 1600 is directly contacted and heated with the surface 20 of the filament bundle N. Referring to fig. 7 to 9, the winding direction of the filament bundle is clockwise in the second pair of hot drawing rollers 1700, and the second pair of hot drawing rollers 1700 directly contacts and heats the surface 10 of the filament bundle M. Referring to fig. 10 to 12, the winding direction of the filament bundle is counterclockwise by the third pair of hot drawing rollers 1800, and the third pair of hot drawing rollers 1800 directly contact and heat the surface 20 of the filament bundle N. Referring to fig. 13 to 15, the winding direction of the filament bundle is clockwise in the fourth pair of drawing heat rollers 1900, and the fourth pair of drawing heat rollers 1900 are in direct contact with the surface 10 of the filament bundle M for heating.

Therefore, the filament bundle N surface 20, the filament bundle M surface 10, the filament bundle N surface 20 and the filament bundle M surface 10 are sequentially heated in a contact manner from the first pair of drafting hot rollers 1600 to the fourth pair of drafting hot rollers 1900, so that the crystallinity and the orientation degree of the fibers are improved, the strength and the modulus of the fibers can be gradually improved, the multi-stage drafting hot rollers are matched to realize the stage-by-stage drafting, the 55dtex-2222dtex bio-based polyamide industrial yarn can be spun, and the 55dtex-111dtex fine denier bio-based polyamide fiber and 1670dtex-2222dtex coarse denier bio-based polyamide fiber can be spun.

Referring to fig. 16 to 18, the filament bundle winds clockwise around the fifth pair of hot drawing rollers 2000, and the fifth pair of hot drawing rollers 2000 directly contact and heat the surface 10 of the filament bundle M, so that the filament bundle hangs down from the right side as shown in fig. 2 and enters the winder through the final net member 2100, which is advantageous for the overall arrangement of the combiner.

Optionally, referring to fig. 2 to 18, the combination machine includes a feeding filament dividing tension roller 1400, a first heating plate 1510, a first pair of drawing hot rollers 1600, a second heating plate 1520, a second pair of drawing hot rollers 1700, a third heating plate 1530, a third pair of drawing hot rollers 1800, a fourth heating plate 1540, a fourth pair of drawing hot rollers 1900, a fifth heating plate 1550 and a fifth pair of drawing hot rollers 2000 in sequence according to the traveling direction of the filament bundle, and the first heating plate 1510, the second heating plate 1520, the third heating plate 1530, the fourth heating plate 1540 and the fifth heating plate 1550 heat the filament bundle in the region between two adjacent rollers.

Specifically, the filament bundle is stretched for the first time by the first pair of drawing hot rollers 1600, and considering that the filament bundle keeps a certain tension, the two sides of the filament bundle are heated and preheated by the first heating plate 1510 and then enter the first pair of drawing hot rollers 1600, so that the problems of easy breakage, poor spinnability and the like in the first drawing are solved; the second heating plate 1520, which is disposed between the first pair of drawing heat rollers 1600 and the second pair of drawing heat rollers 1700, is advantageous for increasing the crystallinity and orientation of the fiber, and may gradually increase the strength and modulus of the fiber; the third heating plate 1530 arranged between the second pair of drawing hot rollers 1700 and the third pair of drawing hot rollers 1800 improves the consistency of the internal temperature and the external temperature of the tows and improves the heating uniformity of the tows so as to be beneficial to the subsequent heating and drawing; a fourth heating plate 1540 arranged between the third pair of drawing hot rollers 1800 and the fourth pair of drawing hot rollers 1900, which further improves the consistency of the internal temperature and the external temperature of the filament bundle, improves the heating uniformity of the filament bundle, and is beneficial to the subsequent heating and drawing; the fifth heating plate 1550 arranged between the fourth pair of drawing hot rollers 1900 and the fifth pair of drawing hot rollers 2000 further improves the consistency of the internal temperature and the external temperature of the tows, improves the heating uniformity of the tows, and is beneficial to subsequent shaping and retraction.

Alternatively, as shown in FIG. 4, the feeding splitting tension roller 1400 employs a fixed cold roller 1410 in cooperation with an angle-adjustable splitting roller 1420, and the first pair of drawing hot rollers 1600, the second pair of drawing hot rollers 1700, the third pair of drawing hot rollers 1800, the fourth pair of drawing hot rollers 1900, and the fifth pair of drawing hot rollers 2000 employ angle-adjustable hot rollers in cooperation with angle-adjustable hot rollers.

The first pair of drawing hot rollers 1600 is a low-temperature roller for primarily heating the tows; the second pair of drawing heat rollers 1700, the third pair of drawing heat rollers 1800, the fourth pair of drawing heat rollers 1900, and the fifth pair of drawing heat rollers 2000 are all high temperature rollers, and the tow is further heated for drawing, relaxation setting, and the like.

The drawing ratio of the feeding yarn dividing tension roller 1400 to the first pair of drawing hot rollers 1600 is kept at 1: (1.04-1.08) keeping the tows at a certain tension; the draft multiple of the first pair of hot drawing rollers 1600 and the second pair of hot drawing rollers 1700 is 1.5 to 3.5 times, and the draft is favorable for high orientation and low crystallinity; the draft multiple of the second pair of drafting hot rollers 1700 and the third pair of drafting hot rollers 1800 is 2.0 to 3.5 times, so as to form secondary heating and drafting; the draft multiple of the third pair of drafting hot rollers 1800 and the fourth pair of drafting hot rollers 1900 is generally 1.7 to 2.5 times, so that the uniformity and the draft multiple of the fiber are improved, and the strength of the filament bundle is improved; the draft multiple of the fourth pair of draft hot rollers 1900 and the fifth pair of draft hot rollers 2000 is 0.9-1.0 times, and the fiber between the fourth pair of draft hot rollers and the fifth pair of draft hot rollers retracts to a certain extent, so that the drafted tow is shaped, and the stress generated by the fiber due to high-speed drafting is eliminated. In order to better control the low shrinkage.

The industrial bio-based polyamide spinning, drafting and winding combination machine comprises 55dtex to 111dtex bio-based polyamide industrial yarn and 1670dtex to 2222dtex bio-based polyamide industrial yarn.

Optionally, the bio-based polyamide fiber tows enter a yarn path to turn and guide yarns through the yarn guide part 1300, the yarn path is changed into 0-90 degrees and then enters the feeding yarn dividing tension roller 1400, the feeding yarn dividing tension roller 1400 is used by combining a fixed cold roller 1410 (phi (110-220) multiplied by 400mm) and an adjustable angle yarn dividing roller 1420 ((phi 55-110) multiplied by 400mm), the surface of a roller shell is chromic oxide and aluminum oxide, the tows which turn by 90 degrees vertically move downwards to the rear end of an effective area of the cylindrical surface which is in tangential contact with the fixed cold roller 1410, as shown in fig. 4. With reference to fig. 5, the rear filament bundle is wound by a half turn counterclockwise from the left side of the cylindrical surface of the fixed cold roll 1410 and then is tangentially pulled out from the right side of the cylindrical surface of the fixed cold roll 1410, and then enters the right side of the cylindrical surface of the angle-adjustable filament distributing roll 1420, and the counterclockwise winding half turn is tangentially pulled out from the left side of the cylindrical surface of the angle-adjustable filament distributing roll 1420 and then enters the left side of the cylindrical surface of the fixed cold roll 1410, at this time, the filament distributing roll has the effect of adjusting the angle; the front section of the cylindrical roller body of the angle-adjustable filament separating roller 1420 is inclined downwards, so that half a turn of filament bundles wound on the cylindrical surface of the angle-adjustable filament separating roller 1420 can move to a certain position from the surface of the roller body to the front end of the roller body (as shown in fig. 5), the filament bundles are continuously wound between the fixed cold roller 1410 and the angle-adjustable filament separating roller 1420 for 1 to 5 turns anticlockwise, and after the last turn of filament bundles are wound, the filament bundles are pulled out anticlockwise from the lower tangent point at the front end of the cylindrical roller surface of the fixed cold roller 1410 and wound on the feeding filament separating tension roller 1400 part without heating, and the function of the feeding filament separating tension roller is to hold the nascent filament bundles and give the filament bundles a certain speed. The tows are cooled and formed under the traction of a feeding splitting tension roller 1400, and the spinning drafting is finished to form nascent fibers. The speed is 550-. Since the feeding dividing tension roller 1400 is kept 1 with the first pair of drawing hot rollers 1600: (1.04-1.08) ratio of speed to keep the tow in tension, preheating the tow to be drawn, drawing the tow by the first pair of drawing heat rollers 1600, passing through the first heating plate 1510, and heating both sides M, N of n tows in the first heating plate 1510.

When spinning 55dtex-111dtex, the total titer and the single fiber titer are both low, abnormal phenomena such as broken ends and the like easily occur when primary fiber is drafted for the first time, a relatively low-temperature heating environment is needed, as shown in fig. 5, n tows fed into a splitting tension roller 1400 at the speed of 720m/min pass through a first heating plate 1510, and both sides M, N of the n tows are heated in the first heating plate 1510, at the moment, the heating temperature is lower by 50-65 ℃, the tows with thin sections are continuously preheated at low temperature, the tows are heated in the heating plate as far as possible, the heat penetrating power is improved, and the tows sequentially enter a first pair of drafting hot rollers 1600. The first pair of drawing hot rollers 1600 adopts an angle-adjustable hot roller and an angle-adjustable hot roller, the surface of the shell of the hot rollers is chromium oxide and aluminum oxide, the size of the pair of rollers is (2 x phi (190 plus 250) × (350 plus 450) ×), the pair of rollers is a low-temperature roller, the filament bundles are wound on the roller surface of the first pair of drawing hot rollers 1600 for 6.5-7.5 circles, the temperature is set to be 75-100 ℃, the temperature can be 90 ℃, the spinning speed is 700 plus 800m/min, the filament bundles are stably spread on the surface of the first pair of drawing hot rollers 1600, the filament bundles are wound on the roller surface and the roller surface of the first pair of drawing hot rollers 1600 anticlockwise for 6.5-7.5 circles, and the surface of the filament bundles heated on the roller shell surface is an N surface.

When 1670dtex-2222dtex is spun, the total fineness and the single-filament fineness are higher, the abnormal phenomena such as end breakage and the like are easy to occur when the nascent fiber is drafted for the first time, and meanwhile, the poor spinnability, the too high total fineness and the too high single-filament fineness cause the too high bending strength and the hard hand feeling of the tows during spinning. A heating environment requiring a relatively high temperature is as shown in fig. 4 and 5, n tows fed into a splitting tension roller 1400 at a speed of 650m/min pass through a first heating plate 1510, both sides M, N of the n tows are heated in the first heating plate 1510, the heating temperature is lower at 70-90 ℃, the tows with fine cross section are continuously preheated at a higher temperature, the tows are heated in the heating plate as far as possible to increase the penetrating force of heat, the tows sequentially enter a first pair of drawing hot rollers 1600 and adopt an angle-adjustable hot roller and an angle-adjustable hot roller, the surface of a shell of the hot roller is chromium oxide and aluminum oxide, the size of the pair of rollers is (2 x phi (190 plus 250) x (350 plus 450) mm), the pair of rollers is low-temperature rollers, the tows are wound on the roller surfaces of the first pair of drawing hot rollers 1600 for 6.5 to 7.5 circles, the temperature is set at 75-100 ℃, optionally 90 ℃, the spinning speed is 700-.

Alternatively, as shown in fig. 7 to 9, the filament bundle is wound on the first pair of drawing heat rollers 1600, drawn from the right roller of the first pair of drawing heat rollers 1600, and transferred to the second heating plate 1520, both sides M, N of n filament bundles are heated in the second heating plate 1520, and the n filament bundles are uniformly spread on the surface of the left roller of the second pair of drawing heat rollers 1700, and the surface of the filament bundle heated on the surface of the roller shell is M surface. The second pair of drawing hot rollers 1700 adopts an angle-adjustable hot roller and an angle-adjustable hot roller, the surface of the shell of the hot roller is chromium oxide and aluminum oxide, the roller is a high-temperature roller, and the size of the roller is (2 x phi (190-) -250) × (350-) -450) mm). The first pair of drawing hot rollers 1600 is a low temperature roller with a temperature setting of 75-100 ℃, the second pair of drawing hot rollers 1700 is a high temperature roller with a temperature setting of 110-. The second heating plate 1520 is placed to allow each filament to pass through the heater independently, and to be spread stably on the surface of the second pair of drawing hot rollers 1700, so that the consistency of the internal and external temperatures of the filament bundle is improved, and the heating uniformity of the filament bundle is improved, thereby facilitating the subsequent heating and drawing. The heating surface of the filament bundle is reversed from the first pair of drawing heat rollers 1600 to the second pair of drawing heat rollers 1700, and the surface of the filament bundle heated on the surface of the roller shell is an M surface. The M surface of the tow is also heated during this process, and the balance of the heating of the second heating plate 1520 is beneficial to increasing the crystallinity and orientation of the fibers, which can gradually increase the strength and modulus of the fibers. The second heated plate 1520 is set to a temperature of 95-115 deg.C and the tow passes through the second heated plate 1520 to a second pair of hot drawing rolls 1700. The filament bundle is clockwise wound on the roller surface of the second pair of drafting hot rollers 1700 for 6.5-7.5 circles at a spinning speed of 1680 m/min. The draft ratio of the first pair of hot rollers 1600 and the second pair of hot rollers 1700 is generally 1.5 to 3.5 times, and the draft is to obtain a high orientation and low crystallinity. The spun 55dtex to 111dtex is lower than the spun 1670dtex to 2222dtex in total titer and single-filament titer, the heating area is small, a relatively low heating environment of 5 to 10 ℃ is needed, and the drafting ratio is 5 to 10 percent smaller due to the relatively thin filaments.

Alternatively, as shown in fig. 10 to 12, after the tow is wound on the second pair of drawing hot rollers 1700, the tow is drawn by the third pair of drawing hot rollers 1800 and both sides M, N of n tows are heated through the third heating plate 1530. The tows are stably spread on the surface of the third pair of drafting hot rollers 1800, 6.5-7.5 circles of tows are wound on the two roller surfaces of the third pair of drafting hot rollers 1800, N tows are uniformly spread on the surface of the roller shell, and the surface of the tows heated on the surface of the roller shell is an N surface. Therefore, certain strength and elongation can be obtained by the drafting of the level, the total titer and the monofilament titer of the spun yarn of 55dtex to 111dtex are lower than those of the spun yarn of 1670dtex to 2222dtex, the heating area is small, a relatively low heating environment of 5 to 15 ℃ is required, and the drafting ratio is lower by 4 to 12 percent due to the relatively thin yarn. The temperature of the third heating plate 1530 is set to 110-. The third heating plate 1530 is arranged to allow each filament to pass through the heater independently, and to be stably spread on the surface of the third pair of drawing hot rollers 1800, so that the consistency of the internal temperature and the external temperature of the filament bundle is further improved, and the heating uniformity of the filament bundle is improved, thereby being beneficial to the subsequent heating and drawing. The tow heating surface is again reversed from the second pair of hot draw rolls 1700 to the third pair of hot draw rolls 1800, where the tow surface heated by the tow on the roll shell surface is an N surface. The two sides of the tow are heated, and the heating balance of the third heating plate 1530 is added, so that the crystallinity and the orientation degree of the fiber are improved, and the strength and the modulus of the fiber can be gradually improved.

Alternatively, as shown in fig. 13 to 15, after the filament bundle is wound on the third pair of drawing heat rollers 1800, the filament bundle is drawn by the fourth pair of drawing heat rollers 1900, and both sides M, N of n filament bundles passing through the fourth heating plate 1540 are heated. The tows are stably spread on the surface of the fourth pair of drafting hot rollers 1900, the tows are wound on the roller surfaces of the fourth pair of drafting hot rollers 1900 for 6.5-7.5 circles, n tows are uniformly spread on the surface of the roller shell, and the surface of the tows heated on the surface of the roller shell is an M surface. This level of draft is also intended to achieve a certain strength and elongation with a certain pre-setting effect. The spun 55dtex to 111dtex is lower than the spun 1670dtex to 2222dtex in total titer and single-filament titer, the heating area is small, a relatively low heating environment of 2 to 10 ℃ is needed, and the drafting ratio is 2 to 8 percent smaller due to the relatively thin filaments. The set temperature of the fourth heating plate 1540 is 125-. The fourth heating plate 1540 is placed to allow each filament to pass through the heater independently, and to be spread stably on the surface of the fourth pair of drawing hot rollers 1900, so that the uniformity of the internal and external temperatures of the filament bundle is further improved, and the uniformity of heating of the filament bundle is improved, thereby facilitating the subsequent heating and drawing. The strand heating surface is again reversed from the third pair of heated draw rolls 1800 to the fourth pair of heated draw rolls 1900, where the strand surface heated by the strand on the roll shell surface is the M surface. The two sides of the filament bundle are heated, and the heating balance of the fourth heating plate 1540 is added, so that the increase of the orientation degree and the grain size in the crystallization area and the improvement of the crystallization area in the subsequent drafting are facilitated, the filament bundle passes through the fourth heating plate 1540 and is conveyed to the fourth pair of drafting hot rollers 1900, the fourth pair of drafting hot rollers 1900 adopt the angle-adjustable hot rollers matched with the angle-adjustable hot rollers, the surface of the shell of the hot roller is ceramic, the size of the pair of rollers is (2 x phi (190 plus 235) × (350 plus 400) ×, the temperature is set to be 130 plus 150 plus, the filament bundle is wound on the roller surface of the fourth pair of drafting hot rollers 1900 for 6.5-7.5 circles, and the spinning speed is 3650 m/min.

Alternatively, as shown in fig. 16 to 18, after the tows are wound on the fourth pair of drawing heat rollers 1900, the tows are drawn by the fifth pair of drawing heat rollers 2000, pass through the fifth heat plate 1550, the temperature of the fifth heat plate 1550 is set to 140-. The tows are stably spread on the surfaces of the fifth pair of drafting hot rollers 2000, 6.5-7.5 circles of tows are wound on the roller surfaces of the fifth pair of drafting hot rollers 2000, n tows are uniformly spread on the surface of the roller shell, and the surface of the tows heated on the surface of the roller shell is an M surface. The spinning thread has the effect of relaxation and sizing, the total fineness and the single-filament fineness of the spun 55dtex-111dtex are lower than those of the spun 1670dtex-2222dtex, the heating area is small, a heating environment with the temperature of 1-4 ℃ is needed to be relatively lower, and the relaxation ratio is 1% -3% less due to relatively thin filaments. The draft multiple of the fourth pair of draft hot rollers 1900 and the fifth pair of draft hot rollers 2000 is generally 0.9-1.0 times, the speed of the fifth pair of draft hot rollers 2000 is slightly lower than that of the fourth pair of draft hot rollers, and the fiber between the fourth pair of draft hot rollers and the fifth pair of draft hot rollers retracts to a certain extent, so that the shaping of the high-strength yarn is mainly realized by shaping the drafted tow and eliminating the stress of the fiber caused by high-speed draft. In order to better control the low shrinkage. Placing fifth hot plate 1550 makes every silk pass through between the heater alone to will be spread in fifth pair of draft hot-rolling 2000 surface stability, further improved the inside and outside temperature uniformity of silk bundle, improved the homogeneity of being heated of silk bundle, in order to do benefit to the back and stereotype to retract. The filament bundle passes through a fifth heating plate 1550 and then is conveyed to a fifth pair of drafting hot rollers 2000, the fifth pair of drafting hot rollers 2000 adopts an angle-adjustable hot roller and an angle-adjustable hot roller, the surface of the shell of the hot roller is made of ceramic, the size of the pair of rollers is (2 x phi (190 plus 220) × (350 plus 400) ×) mm), the rollers are high-temperature rollers, the filament bundle is wound on the roller surface of the fifth pair of drafting hot rollers 2000 for 6.5-7.5 circles, the temperature is set to 130 plus 210 ℃, and the spinning speed is 3550 m/min.

More particularly, the combination machine of the embodiment can be used for spinning 55dtex to 111dtex fine denier bio-based polyamide fiber and 1670dtex to 2222dtex coarse denier bio-based polyamide fiber, and can also be used for spinning 111dtex to 1670dtex bio-based polyamide fiber.

Example 2

Based on the industrial bio-based polyamide spinning, drafting and winding combination machine disclosed in embodiment 1, which comprises a first heating plate 1510, a second heating plate 1520, a third heating plate 1530, a fourth heating plate 1540 and a fifth heating plate 1550, the embodiment provides a specific heating plate form. Specifically, as shown in fig. 19 to 21, each heating plate includes a heat transfer block 1501 and a plurality of heating rods 1502, the heat transfer block 1501 is provided with an open slot 1503 through which the filament bundle passes, the plurality of heating rods 1502 (three heating rods shown in the figures, the number of which is not fixed) are sequentially arranged along the length direction of the open slot 1503, the heating rods 1502 are arranged in a hook shape and are provided with a hook portion and a hook groove, the heat transfer block 1501 is arranged in the hook portion, and the hook groove is used for the filament bundle to pass through. Through this hot plate, can fully, evenly heat the both sides of the silk bundle that passes.

Example 3

A screw extruder is involved in an industrial bio-based polyamide spinning drafting and winding combination machine, and an extruder screw is installed on the screw extruder. Referring to fig. 22 to 25, the present embodiment provides an extruder screw, which includes a screw feeding section 110, a screw compressing section 120 and a screw metering section 130, wherein one end of the screw feeding section 110 is detachably connected to one end of the screw compressing section 120, and the other end of the screw compressing section 120 is detachably connected to one end of the screw metering section 130.

Specifically, the extruder screw employs a screw comprising a screw feeding section 110, a screw compression section 120, and a screw metering section 130, and the adjacent sections are detachably connected. Specifically, one end of the screw feeding section 110 is detachably connected to one end of the screw compressing section 120, and the other end of the screw compressing section 120 is detachably connected to one end of the screw metering section 130. Furthermore, in the problems that the screw is corroded due to the unstable raw material of the bio-based polyamide and the dimensional tolerance between the screw sleeve and the screw is gradually increased, the mode of regularly replacing the screw metering section 130 is convenient for the metering section which is probably worn firstly, so that the yield and the efficiency of the screw extruder are ensured.

The screw compression section 120 and the screw feed section 110 may also be periodically replaced.

As shown in fig. 22, the extruder screw is installed in the screw extruder 100, and the screw extruder 100 is installed with the extrusion head 200 through which the melt is transported to the subsequent melt pipe.

Optionally, the screw metering section 130 further comprises a mixing head 140, which is disposed at the head of the screw to improve the effect of the extruder screw in stirring and homogenizing the melt.

Optionally, as shown in fig. 22, a key connector 150 is further connected to an end of the screw feeding section 110 away from the screw compressing section 120, and is connected to the transmission mechanism through the key connector 150 to drive the screw to rotate to enter a working state.

Optionally, the extrusion head 200 includes a pressure sensor that detects the melt pressure value, so that the melt pressure value can be detected to ensure that the head pressure of the screw extruder 100 is constant.

Optionally, the extrusion head 200 includes a temperature sensor that detects the temperature of the melt to measure an on-line temperature parameter of the melt, such as a biomass polyamide melt, to facilitate the overall spinning process.

Optionally, the extrusion head 200 is provided with a pre-filtering ring (not shown) in the melt channel, and the pre-filtering ring filters larger particles of the material to ensure the quality of the melt entering the subsequent melt channel.

Optionally, the detachable connection in the above scheme may be a threaded connection, specifically, both ends of the screw compression section 120 are respectively in threaded connection with one end of the screw feeding section 110 and one end of the screw metering section 130. Through the detachable connection, the fast-wearing screw metering section 130 is conveniently replaced with a higher frequency, and the yield and the efficiency of the screw extruder 100 are ensured.

Further, in the scheme of two-section threaded connection, a pin joint can be added to improve the connection quality. Specifically, by way of example, reference is made to fig. 23 and 24 for the detachable connection of the screw compression section 120 to the screw feed section 110.

Referring to fig. 23 and 24, one end of the screw compression section 120 close to the screw feeding section 110 includes a first protrusion 121, a second protrusion 122, and a third protrusion 123, which are sequentially connected, axes of the first protrusion 121, the second protrusion 122, and the third protrusion 123 are all overlapped, radial lengths of the first protrusion 121, the second protrusion 122, and the third protrusion 123 are sequentially reduced, and a first thread is disposed on an outer circumferential surface of the second protrusion 122. A first shaft hole 111 is formed at one end of the screw feeding section 110 close to the screw compression section 120, a first protrusion 121, a second protrusion 122 and a third protrusion 123 sequentially penetrate through the first shaft hole 111, and a second thread (not shown) connected with the first thread is formed on the inner wall of the first shaft hole 111 of the screw feeding section 110. The third protrusion 123 is pinned with the screw feeding section 110 by a first positioning pin 123a, and corresponding to the first positioning pin 123a, pin holes are formed in the third boss and the screw feeding section 110 in corresponding radial distribution.

Through the arrangement of the three bulges, the cylinder wall of the screw feeding section 110 at the pin joint has larger thickness, and the stability of the pin joint is improved by matching with the third bulge 123; the second protrusion 122 is disposed between the first protrusion 121 and the third protrusion 123, as shown in fig. 24, the outer circumference of the first protrusion 121 is not configured to closely fit the inner wall of the first axial hole 111 of the screw feeding section 110, and the middle first thread and the middle second thread are separated from the space region outside the screw.

Similarly, in the scheme of detachable connection between the screw compression section 120 and the screw metering section 130, referring to fig. 23 and 25, one end of the screw metering section 130 close to the screw compression section 120 includes a fourth protrusion 131, a fifth protrusion 132, and a sixth protrusion 133 that are sequentially connected, axes of the fourth protrusion 131, the fifth protrusion 132, and the sixth protrusion 133 are all overlapped, radial lengths of the fourth protrusion 131, the fifth protrusion 132, and the sixth protrusion 133 are sequentially reduced, and an outer peripheral surface of the fifth protrusion 132 is provided with a third thread. One end of the screw compression section 120 close to the screw metering section 130 is provided with a second shaft hole 124, a fourth protrusion 131, a fifth protrusion 132 and a sixth protrusion 133 sequentially penetrate through the second shaft hole 124, and the inner wall of the second shaft hole 124 of the screw compression section 120 is provided with a fourth thread connected with the third thread. The sixth protrusion 133 is pinned to the screw compression section 120 by a second dowel pin 133a, and the sixth protrusion 133 and the screw compression section 120 are provided with corresponding radially distributed pin holes corresponding to the second dowel pin 133 a.

In other possible embodiments, the screw compression section 120 is detachably connected with the screw feeding section 110, the screw compression section 120 is detachably connected with the screw metering section 130, and a threaded connection can be adopted to match a screw connection, a clamping connection and the like.

Optionally, the screw length-diameter ratio of the extruder screw can be controlled to be (25-32): 1.

example 4

A melt pipeline is involved in an industrial bio-based polyamide spinning, drawing and winding combination machine. Referring to fig. 26 to 29, the present embodiment discloses a melt pipe 300, the melt pipe 300 is matched with a screw extruder 100 and a spinning beam 400, the melt pipe 300 includes a melt header pipe 310, a plurality of melt branch pipes 320, a plurality of delivery pumps 330 and a melt pipe melt pressure measuring element 340, one end of the melt header pipe 310 is connected with the screw extruder 100, one end of each of the plurality of melt branch pipes 320 is communicated with the other end of the melt header pipe 310, the other ends of the plurality of melt branch pipes 320 are connected with the plurality of spinning beams 400 one by one, the plurality of delivery pumps 330 are installed on the plurality of melt branch pipes 320 one by one, the melt pipe melt pressure measuring element 340 is installed on the melt header pipe 310, the spinning beam 400 is provided with a spinning beam melt pressure measuring element 413, and the melt pipeline melt pressure measuring element 340 and the spinning beam melt pressure measuring element 413 are both connected with an electrical frequency converter to assist the electrical frequency converter to regulate and control the delivery pump 330.

The screw extruder 100 and the melt pipe 300 are connected to the spinning beam 400 in sequence, and the melt supplied from the screw extruder 100 to the melt header 310 is supplied to the plurality of melt branch pipes 320 and then supplied to the spinning beam 400 of the next step. Referring to fig. 26 and 27, a transfer pump 330 is disposed in the melt manifold 320 to pump the melt.

The melt header 310 is equipped with a melt line melt pressure measurement component 340 to detect the pressure at which the melt flows through the melt header 310; the spinning beam melt pressure measuring element 413 is arranged on the spinning beam 400, and can detect the pressure value of the melt flowing through the spinning beam 400, and each spinning beam 400 is provided with the spinning beam melt pressure measuring element 413. The pressure drop data of the melt from the melt branch pipe 320 to each spinning manifold 400 is obtained by matching the detection data of the melt pipeline melt pressure measuring element 340 and the spinning manifold melt pressure measuring element 413, and then the electric frequency converter regulates and controls the delivery pump 330 to accurately distribute the melt passing through the melt branch pipe 320 under the online real-time feedback action, so that the pressure drop of each melt branch pipe 320 is equal, and the melt can be delivered to the pump inlet of each spinning position by equal pressure drop.

It will be appreciated that, at the same pressure drop, it is also ensured that the melt is delivered to the pump inlet of each spinning station with equal residence time; in the case of a consistent pressure drop, it is also understood that the pressure conditions of the plurality of melt branches 320 are substantially controlled to be consistent, thereby also ensuring that the flow rate of each melt branch 320 is also equal.

In summary, the melt pipeline 300 of the embodiment is used in cooperation with the detection of the melt pressure in the spinning beam 400, so that the residence time, the temperature, the shear rate and the pressure distribution from the melt to each spinning position are uniform and consistent, which is beneficial to controlling the spinning quality and the spinning speed of each spinning beam 400, and further controlling different spinning positions to be in the same spinning state.

Alternatively, as shown in fig. 27 and 28, the melt duct 300 includes a plurality of static mixers 350, the plurality of static mixers 350 are disposed one by one in the melt manifold 320, and the static mixers 350 are disposed adjacent to the spinning beam 400. The melt is sufficiently mixed by the static mixer 350 and then transferred to the spinning beam 400 in the next step.

Alternatively, as shown in FIG. 27, melt line 300 includes a melt line heater assembly 360 and a plurality of melt line temperature sensing elements 370, the melt line heater assembly 360 being mounted to the melt manifold 310 and the melt branches 320, the plurality of melt line temperature sensing elements 370 being mounted one to each of the plurality of melt branches 320 for sensing the temperature of the melt flowing through the melt branches 320. The spinning is ensured to be in a preset temperature interval through related heating, and auxiliary control is carried out through detection of the temperature.

Alternatively, as shown in FIG. 27, melt line heater assembly 360 includes a plurality of melt line electric heaters 361 and melt line metal fillers 362, the plurality of melt line electric heaters 361 being disposed around melt main pipe 310 and melt branch pipe 320, the melt line metal fillers 362 being disposed between melt line electric heaters 361 and the wall of the melt lumen of melt main pipe 310 and between melt line electric heaters 361 and the wall of the melt lumen of melt branch pipe 320.

The melt channel electric heater 361 is disposed around the melt main pipe 310 and the melt branch pipes 320, specifically, the melt channel electric heater 361 is disposed in a ring shape and is disposed along the periphery of the pipe body pipe cavity of the melt channel 300 to sufficiently heat the melt in the entire circumferential direction. And the melt pipe metal filler 362 plays a role of a soaking block, including forms of copper powder, iron powder, aluminum powder and the like, so that uniform and sufficient heating of the melt is realized, and a certain heat preservation effect is achieved.

As shown in fig. 27 to 29, the melt channel electric heater 361 may be provided in the form of a heating ring. Alternatively, a plurality of heating rings are arranged at intervals along the extension direction of the tube body of the main melt pipe 310, and a plurality of heating rings are arranged at intervals along the extension direction of the tube body of the branch melt pipe 320.

The melt pipe 300 in this embodiment includes a plurality of melt branches 320, which may be two melt branches 320 as shown in fig. 27-29, or may be three, four, etc. in more forms.

Example 5

A spinning manifold is involved in an industrial bio-based polyamide spinning drafting and winding combination machine and is matched with a melt pipeline 300. As shown in fig. 26 and fig. 30 to 32, the spinning beam 400 includes an upper beam 410, a lower beam 420, a metering pump 500, a detachable pump seat 483, a spinning assembly 600, a beam pipe 430, an upper beam heater assembly 440, and a lower beam heater assembly 450, the lower beam 420 is fixedly connected to the upper beam 410, the metering pump 500 is installed on the detachable pump seat 483, the metering pump 500 and the detachable pump seat 483 are both installed in the upper beam 410, the spinning assembly 600 is installed in the lower beam 420, the beam pipe 430 includes a communicating melt pipe 300 and a detachable pump seat 483, and the communicating detachable pump seat 483 and the spinning assembly 600 are connected, the upper beam heater assembly 440 is installed on the upper beam, and the lower beam heater assembly 450 is installed on the lower beam.

The tank pipeline 430 comprises a communicated melt pipeline 300, a detachable pump seat 483, a communicated detachable pump seat 483 and a spinning assembly 600, the matching metering pump 500 is installed on the detachable pump seat 483, melt is conveyed into the detachable pump seat 483 from the melt pipeline 300 along one part of the tank pipeline 430, a channel is arranged in the detachable pump seat 483, and the channel returns into the pump seat after passing through the metering pump and is opened from another part so as to convey the melt into the spinning assembly 600 along another part of the tank pipeline 430.

Wherein, the metering pump 500 is further connected with the transmission mechanism.

Further, the manifold 400 is provided with a plurality of manifold assemblies 600, and a portion of the manifold piping 430 from the removable pump block 483 to each manifold assembly 600 can be configured to be of uniform length, such as by piping winding or the like as shown in FIG. 32, to facilitate uniform distribution of the melt.

The spinning box 400 in this embodiment is configured as a double-layer structure, and includes an upper box 410 and a lower box 420 that are fixed to each other, and the elements are correspondingly configured, so as to facilitate volume reduction, and facilitate hoisting and calcination treatment. On the other hand, the spinning beam 400 is arranged in a 1-position/box structure with a small volume, and when the biomass-based polyamide raw material is unstable, and is often degraded and carbonized to cause gradual blockage of a pipeline and needs to be disassembled and calcined, the spinning beam is convenient to treat in a common calcining furnace through the double-layer structure of the small volume, the upper beam 410 and the lower beam 420, so that the unfavorable situation that special large-scale calcining equipment is needed is avoided.

As shown in fig. 31, the metering pump 500 is disposed in the upper box 410, the spinning assembly 600 is disposed in the lower box 420, and the upper box 410 and the lower box 420 are heated by different heaters, so as to separately adjust the temperatures in the upper box 410 and the lower box 420, and particularly, the temperature of the lower box 420 can be controlled to be higher, so that the spinning assembly 600 is at a higher temperature, which is beneficial to the filament output of the spinneret plate of the spinning assembly 600, and is convenient for the filament output speed and the spinning quality.

In this case, the melt is continuously and accurately supplied to the spinning pack 600 for spinning by the metering pump 500 at a high pressure. Because the metering pump 500 requires high-precision metering accuracy, a transmission shaft of a transmission part of the metering pump is driven by a direct connection cycloid pin gear reducer of a permanent magnet synchronous motor and is subjected to variable-frequency speed regulation. And each metering pump transmission component is respectively and independently driven. The transmission shaft can stretch out and draw back, and the transmission shaft is equipped with universal coupling and safety pin protection device. Ensuring that the melt is delivered to each spinning position with equal residence time and enters the spin pack assembly 600 in sequence.

Optionally, as shown in fig. 31, the manifold 400 further comprises a manifold metal filler 460, and the manifold metal filler 460 is respectively disposed inside the upper manifold 410 and the lower manifold 420.

The heating mode adopts the mode that the heater is matched with the metal filler 460 of the spinning box, heat is transferred and heat is preserved through the metal filler such as copper powder, aluminum powder, iron powder and the like, compared with the conventional biphenyl steam heat transfer, the heating mode is beneficial to environmental protection, the design of a pressure container on the shell of the spinning box body 400 can be avoided, the operation safety is improved, and the processing and use cost is reduced.

Alternatively, the heater may be a heating rod, and may be electrically heated.

Alternatively, referring to fig. 30 and 31 in combination, the upper tank heater assembly 440 includes an upper tank basic heater 441, an upper tank auxiliary heater 442, and an upper tank regulation heater 443; the lower tank heater assembly 450 includes a lower tank base heater 451 and a lower tank regulation heater 452.

By the above-described design of the upper and lower tank heater assemblies 440, 450, a manner of employing different heating modes depending on different situations is provided. The upper tank basic heater 441, the upper tank auxiliary heater 442, the upper tank adjusting heater 443, the lower tank basic heater 451, and the lower tank adjusting heater 452 are controlled individually and are associated with each other, and may be heated individually or in groups or all. And an intelligent temperature control system is adopted, so that the energy consumption is reduced and the environment is protected. Through the cooperation of various heaters of intelligent temperature control system, both considered the high temperature can accelerate bio-based polyamide fibre carbonization, provide higher temperature for spinning subassembly 600 again and be favorable to going out the silk to and provide the mode of rapid heating up.

For example, when the temperature is relatively low, such as immediately after the spinning beam 400 is put into operation, the upper tank base heater 441, the upper tank auxiliary heater 442, and the upper tank adjustment heater 443 may be fully opened, and the lower tank base heater 451 and the lower tank adjustment heater 452 may be fully opened. For the lower tank 420, the lower tank regulating heater 452 is subsequently turned off, so that the lower tank basic heater 451 is in a working state; for the upper tank 410, the upper tank adjustment heater 443 is subsequently turned off, and the upper tank auxiliary heater 442 is then turned off.

Wherein, the gaps among all the parts in the spinning beam 400 are paved with metal fillers to transfer heat and preserve heat. Optionally, the upper box 410 includes an upper box temperature measuring element 411, and the lower box 420 includes a lower box temperature measuring element 421, which respectively detect the metal fillings 460 in the upper box 410 and 460 in the lower box 420, so as to feed back data in time to assist in adjusting the power of the heater, thereby achieving intelligent temperature control with controllable temperature accuracy of ± 1 ℃.

Optionally, the upper case 410 includes an upper case 410 body and an upper case cover 412 detachably mounted on top of the upper case 410 body. Through setting up detachable upper box body apron 412 to when the pipeline blocks up gradually, dismantle, overhaul through opening upper box body apron 412.

Optionally, as shown in fig. 31, the spinning manifold 400 includes a metering pump heat-preserving block 481, the metering pump heat-preserving block 481 is disposed between the metering pump 500 and the upper manifold cover plate 412, and the metering pump heat-preserving block 481 surrounds the metering pump 500. Through measuring pump heat preservation piece 481, improve the heat preservation effect to measuring pump 500.

Optionally, a heat-insulating cover made of heat-insulating material is further arranged outside the spinning beam 400, so that the overall heat-insulating effect is improved.

Alternatively, as shown in FIG. 30, spinning beam 400 includes an upper box melt inlet 470, and melt conduit 300 is connected at upper box melt inlet 470, thereby providing a connection location for melt conduit 300.

Alternatively, the components within the spin beam 400 are modular and removable for processing in a conventional calciner.

Alternatively, as shown in fig. 31, the spinning beam 400 includes a pump plate 482 and a detachable pump block 483, the metering pump 500 is installed to the pump plate 482, the pump plate 482 is installed to the detachable pump block 483, and the detachable pump block 483 is installed inside the upper beam 410.

Optionally, as shown in FIG. 31, an assembly mounting plate is secured below the removable pump block 483 to connect to the spin pack assembly 600.

Optionally, the spin beam 400 includes a gasket 490 to seal off the areas of the spin beam 400 where the melt is prone to overflow.

Alternatively, the spinning beam 400 includes a spinning beam melt pressure measuring element 413, the spinning beam melt pressure measuring element 413 being mounted to the upper beam 410. So that the initial pressure at the spinning assembly 600 is generally greater than 10Mpa during the bio-based polyamide spinning production, and the data support is provided for normal spinning by the spinning box melt pressure measuring element 413.

Optionally, the spinning beam 400 is set to a temperature of 268 ℃ to 275 ℃ during use when used in bio-based polyamide spinning production. The bio-based polyamide raw material melted in the screw extruder is introduced into the spinning beam 400 through the melt line 300 and then distributed into the beam line 430 and further to the metering pumps 500, and a single metering pump 500 or a plurality of metering pumps 500 are provided for each spinning station.

Example 6

In the industrial bio-based polyamide spinning drafting winding combination machine, a monomer suction mechanism 800 is involved. Referring to fig. 33 to 37, the present embodiment provides a monomer suction mechanism 800 for performing monomer suction processing on the filament bundle exiting from the spinning assembly 600, wherein a slow cooler 700 is disposed between the spinning assembly 600 and the monomer suction mechanism 800, the slow cooler 700 sprays superheated steam on the filament bundle exiting from the spinning assembly 600 to form monomer-containing hot steam, and the monomer-containing hot steam is further processed by the monomer suction mechanism 800.

Specifically, the monomer suction mechanism 800 includes a suction body 810, a suction module 820, and a plurality of rectifying heating plates 830, and the suction body 810 is provided with a body passage 811 leading to a spinneret of a spinning module. The suction assembly 820 includes a suction duct 821, a vacuum pump 822, a compressed air duct 823, and a heating coil 824, the suction duct 821 is communicated with the body passage 811, and the vacuum pump 822 is provided on the suction duct 821. The compressed air pipe 823 has one end to which compressed air is introduced, the other end extending into the suction pipe 821, and the other end interposed between the suction body 810 and the vacuum pump 822. The heating coil 824 is disposed around the suction duct 821 and between the suction body 810 and the compressed air duct 823. A plurality of rectifying heating plates 830 are arranged at intervals in the body passage 811, and a rectifying passage leading to the suction duct 821 is formed in the body passage 811. The hot vapor containing the monomer is sucked into the suction duct 821 by a negative pressure through the rectifying passage and is discharged from the other end of the suction duct 821

The slow cooler 700 sprays superheated steam to the spinneret plate of the spinning pack 600, when the monomer and oligomer escape from the spinneret orifice with the melt at a high temperature, a superheated steam protective layer is formed on the surface of the spinneret plate, and the superheated steam and the monomer floating object form a cloud shape, so that the superheated steam and the monomer floating object are prevented from attaching to the surface of the spinneret plate, and the adverse situation that the spinneret plate is blocked is improved.

The hot air containing monomer is sucked from the suction pipe 821 by negative pressure along the body passage 811 of the suction body 810, specifically, when the compressed air pipe 823 feeds the compressed air into the suction pipe 821, a negative pressure region is formed in the suction pipe 821, and the hot air containing monomer is uniformly sucked into the suction pipe 821 along the rectifying passages formed by the rectifying heating plate 830 and the suction body 810, and the rectifying passages are also beneficial to the monomer to enter the suction pipe 821 quickly and further to be discharged from the other end of the suction pipe 821 through the vacuum pump 822.

Wherein, the suction pipe 821 between the suction body 810 and the compressed air pipe 823 is provided with a heating coil 824 for maintaining the dry hot air state of the hot air containing the monomer, so as to improve the adverse effect of broken ends and influencing the fiber strength caused by the generation of steam due to the temperature reduction of the hot air containing the monomer. The heating coil 824 may be further provided with an electric cabinet for electric control. The heating coil 824 can also keep the section of pipeline at a certain temperature, so as to prevent residual monomer from crystallizing to block the pipeline and influence the negative pressure suction effect.

On the other hand, the rectifying heating plate 830 has a heating function for facilitating the maintenance of a dry hot air state of the hot air containing the monomer along the body passage 811 to the suction duct 821.

The monomer suction mechanism 800 of the embodiment is matched with the spinning component 600, so that the monomer can be removed in time in the production of bio-based polyamide spinning, the defects of blockage, reduction of strength of tows and broken ends caused by the monomer are overcome, the strength, evenness, dyeing performance and the like of the tows are guaranteed, and the normal production is ensured.

Alternatively, as shown in fig. 33 and 34, the unitary pumping mechanism 800 includes a transition heater 840, the transition heater 840 being mounted within the pumping body 810 and disposed between the slow cooler 700 and the pumping assembly 820, the transition heater 840 being disposed at the outer periphery of the body passageway 811. Superheated steam is sprayed to a spinneret plate through a slow cooler 700 to form hot air containing monomers, the hot air containing the monomers needs to pass through a section of path until the hot air containing the monomers enters a suction pipeline 821, and a transition heater 840 is arranged to enable the hot air containing the monomers to continuously maintain a dry and hot air state, so that the adverse situation that steam drips to cause end breakage is avoided, tows are temporarily kept in a hot environment for a period of time to be prevented from being rapidly cooled, the situation that macromolecular bonds are entangled due to sudden cooling of a biobased polyamide melt is prevented, and the strength of the tows is guaranteed.

Optionally, a 180 ℃ to 240 ℃ hot space environment is provided by transition heater 840.

Alternatively, as shown in fig. 34, the transition heater 840 includes a plurality of plate heaters 841 disposed to collectively enclose the body passageway 811, the plate heaters 841 being fixedly disposed within the suction body 810, and plate temperature measuring elements 842 fixed within the suction body 810 to detect the temperature of the body passageway 811 at the plate heaters 841. As shown in the cross-sectional view of fig. 34, one plate heater 841 is provided on each of both vertical sides of the body passage 811. The plate heater 841 may be in the form of a straight plate, a bent plate, or the like.

Alternatively, as shown in fig. 32 and 37, the end of the suction pipe 821 forms a suction port 812 at the suction body 810, and the suction port 812 communicates with the body passage 811, where the end of the suction pipe 821 refers to a section of the pipe near the suction body 810. Alternatively, the rectifying heating plates 830 are vertically arranged, a plurality of rectifying heating plates 830 are arranged at intervals, a plurality of rectifying channels are formed between the rectifying heating plates 830 and the wall surface of the body channel 811, one end of each rectifying channel is communicated with the suction port 812, and the flow direction of the fluid indicated by several arrows in fig. 37 is limited by the rectifying channels.

As shown in fig. 37, the cross-section of the portion of the body passageway 811 adjacent to the suction block 820 is provided, and it is to be understood that the flow-straightening passageway is not limited to being defined by the adjacent flow-straightening heating plates 830, but also by the outer flow-straightening heating plates 830 being defined by the inner wall of the body passageway 811 of the suction body 810.

In one embodiment, the heating wires are embedded in the rectifying heating plate 830, and the rectifying heating plate 830 comprises an aluminum plate. The electric heating wire is provided with an electric cabinet to control the service time and power, which is favorable for saving energy to a certain extent. The plate of the rectifying heater plate 830 may be made of an aluminum plate as described above, or may be made of a copper material or the like, taking heat conductivity into consideration.

Alternatively, as shown in fig. 32 to 35, the suction pipe 821 includes a first straight pipe segment 821a, a second inclined pipe segment 821b, a third straight pipe segment 821c, a fourth inclined pipe segment 821d, and a fifth straight pipe segment 821e connected in sequence, the first straight pipe segment 821a is fixedly connected to the suction body 810, the heating coil 824 is provided on the first straight pipe segment 821a, the vacuum pump 822 is installed at the other end of the fifth straight pipe segment 821e, the suction pipe 821 further includes an exhaust pipe 821f, and the exhaust pipe 821f is installed at the other end of the vacuum pump 822. A nozzle 823a is provided at one end of the compressed air pipe 823, the nozzle 823a is provided in the suction pipe 821 and at a boundary between the second oblique pipe segment 821b and the third straight pipe segment 821c, and an opening of the nozzle 823a is provided toward the third straight pipe segment 821c, so that a primary negative pressure region 821cc is formed in the third straight pipe segment 821 c. The third straight pipe section 821c has an inner diameter smaller than that of the fifth straight pipe section 821e to form a secondary negative pressure region 821dd in the fourth inclined pipe section 821 d. The third straight pipe section 821c has an inner diameter smaller than that of the first straight pipe section 821 a.

As shown in fig. 35, a primary negative pressure region 821cc is formed in the third straight pipe section 821c by arranging a nozzle 823a of the above compressed air pipe 823 in conjunction with the suction pipe 821; the tube diameter of the fourth oblique tube segment 821d is expanded by the tube diameter change of the third straight tube segment 821c, the fourth oblique tube segment 821d to the fifth straight tube segment 821e, and a secondary negative pressure region 821dd is formed. The primary negative pressure region 821cc and the secondary negative pressure region 821dd cooperate to perform negative pressure suction of the hot air containing the monomer in the body passage 811.

Alternatively, as shown in fig. 33 and 35, the suction pipe 821 is fixedly arranged on the suction body 810, one end of the suction pipe 821 is communicated with the body channel 811, the other end of the suction pipe 821 extends into the hot water tank 825, and the monomer polymer in the monomer gas is dissolved with water, so that the situation that the monomer is easy to cause environmental pollution and is not beneficial to the health of workers when being dissipated into the air is improved.

Alternatively, as shown in fig. 35, the compressed air pipe 823 is provided with an air pressure regulating valve 823b, the air pressure regulating valve 823b is provided with a first pressure gauge 823bb, and the degree of vacuum at the outlet of the nozzle 823a of the compressed air pipe 823 can be regulated by the air pressure regulating valve 823b and assisted to be displayed by the first pressure gauge 823 bb.

Optionally, the suction pipe 821 includes a second pressure gauge 826, the second pressure gauge 826 is installed on the fifth straight pipe section 821e to detect the pressure after the secondary negative pressure region 821dd, and the second pressure gauge 826 is further connected to the vacuum pump 822. The pressure of the secondary negative pressure region 821dd is displayed by the second pressure gauge 826, which assists in controlling the pumping speed of the vacuum pump 822.

Example 7

The slow cooler 700 is arranged in an industrial bio-based polyamide spinning, drawing and winding combination machine. Optionally, the slow cooler 700 of this embodiment is used in combination with the single suction mechanism 800 of embodiment 6, and particularly, an embodiment of the slow cooler 700 for spraying superheated steam to the spinneret of the spinning pack 600.

Referring to fig. 33, 34 and 36, in the present embodiment, the slow cooling device 700 includes a slow cooling and heat equalizing body 710 and a steam pipe 720, the slow cooling and heat equalizing body 710 has a slow cooling filament bundle chamber 711, an upper side of the slow cooling filament bundle chamber 711 is communicated to a position of the spinneret plate, and a lower side of the slow cooling filament bundle chamber 711 is communicated with the body channel 811. The slow cooling and heat equalizing body 710 is internally provided with a slow cooling heater (not shown), the slow cooling and heat equalizing body 710 comprises an injection chamber 713 with the width decreasing gradually, the position with the maximum width of the injection chamber 713 is connected with the slow cooling tow chamber 711 through a partition 714, the partition 714 is provided with a plurality of injection holes 714a facing the slow cooling tow chamber 711, a steam pipeline 720 is provided with a pressure reducing valve 721, one end of the steam pipeline 720 is configured to be fed with steam, the steam is configured to form superheated steam after passing through the pressure reducing valve 721 and the slow cooling heater, the other end of the steam pipeline 720 forms a superheated steam inlet pipe 722 at the slow cooling and heat equalizing body 710, and the superheated steam inlet pipe 722 is communicated with the position with the minimum width of the injection chamber 713.

Specifically, the pressure of the steam is reduced by a pressure reducing valve 721, optionally to 0.005-0.01Mpa, and then the steam is slowly cooled to a superheated steam state by a slow cooling heater, and is ejected to the lower part of the spinneret plate through an ejection chamber 713 and an ejection hole 714 a. The steam after pressure reduction can more easily reach a superheated steam state.

The provision of a spray chamber 713 of decreasing width as shown in figure 36 facilitates thorough mixing of the superheated steam with the gaseous monomer and oligomer.

Alternatively, as shown in fig. 36 and 38, the partition 714 is provided with a plurality of injection holes 714a facing the spinneret, and in particular, superheated steam is directly injected to the spinneret through the injection holes 714a, so that monomers and oligomers are substantially prevented from adhering to the surface of the spinneret.

Optionally, the slow cooling and heat equalizing body 710 is fixedly disposed on the suction body 810, so as to form an effect of integrating the slow cooling device 700 with the single suction mechanism 800. In the whole device, the slow cooler 700 and the single body pumping mechanism 800 are arranged into an integral mechanism, so that the assembly, the maintenance, the volume reduction and the single body treatment effect are facilitated.

Example 8

A double-sided oiling mechanism 1100 is involved in an industrial bio-based polyamide spinning, drafting and winding combination machine. Referring to fig. 44, the present embodiment provides a double-sided oiling station 1100, which includes a pair of oil tankers on opposite sides of a tow 30, the oil tankers being staggered from one another. Referring to fig. 45, fig. 45 shows a staggered arrangement with a pair of tankers, with the upper tanker 1153 of fig. 45 partially overlapping the pattern of the lower tanker 1154.

Alternatively, referring to fig. 39 and 44, a double-sided tanker installation 1100 may be provided with multiple pairs of tankers, with the drive shafts 1110 of the tankers all mounted to the same panel. It will be appreciated that the drive shaft is rotatably mounted to the face plate, with bearings being provided for mounting. As shown in fig. 40, the drive shaft is also disposed through the face plate.

Referring to fig. 39 to 43, in the coupe oiling mechanism 1100, the tanker includes a transmission shaft 1110, a tanker hull 1120 and an oil supply capillary 1130, the tanker hull 1120 is coaxially fixed with the transmission shaft 1110, an outer peripheral edge of the tanker hull 1120 is provided with a tanker surface groove 1125a arranged circumferentially, a tanker oil storage cavity 1126 is arranged in the tanker hull 1120, the tanker hull 1120 is provided with a plurality of oil outlet holes 1125b arranged circumferentially at intervals, one end of each oil outlet 1125b is communicated with the tanker oil storage cavity 1126, the other end of each oil outlet 1125b is communicated with the tanker surface groove 1125a, the tanker surface groove 1125a is configured to be in movable contact with the tow 30, and one end of the oil supply capillary 1130 is communicated with the tanker oil storage cavity 1126 to supply oil to the tanker oil storage cavity 1126.

As shown in fig. 43, 12 oil outlet holes 1125b are shown circumferentially spaced, the oil outlet holes 1125b preferably being arranged in the radial direction of the tanker hull 1120. Alternatively, the number of oil outlets can be controlled between 4 and 16.

The double-sided oiling mechanism 1100 performs double-sided oiling on the tow 30 through the pair of oil wheels positioned on two sides of the tow 30, and the pair of oil wheels is staggered up and down to enable the oiling effect to be good, and particularly, the oil wheel surface groove 1125a at the outer edge of the oil wheel shell 1120 is further passed through, the oil wheel shell 1120 is relatively fixed with the transmission shaft 1110, the axes of the oil wheel shell and the transmission shaft are coincident, the transmission shaft 1110 is driven to rotate to drive the oil wheel shell 1120 to rotate, the oiling agent of the oil wheel oil storage cavity 1126 flows out to the oil wheel surface groove 1125a through the oil outlet 1125b, under the condition that the oil wheel surface groove 1125a and each pair of oil wheels are staggered up and down, the tow 30 is tightly attached to the surface of the oil wheel, the contact distance is long, the tow 30 is uniformly oiled, the oiling agent can be uniformly sprayed on the surface of the bio-based polyamide fiber to the maximum, and the rotating speed of the transmission shaft 1110 can be controlled so as to control the moisture content and the oil content of the tow 30 after oiling.

Correspondingly, the speed of the motor is adjusted through the frequency converter to control the rotating speed of the oil tanker, so that the purpose of oiling control is achieved. The rotating speed of the bio-based polyamide fiber oil tanker is controlled within 12-32 r/min.

Alternatively, referring to figures 41 and 42, tanker hull 1120 comprises a left end cap 1121, a first right end cap 1122, an inner tanker hull 1124 and an outer tanker hull 1125. The left end cap 1121 is fixedly connected to the transmission shaft 1110. The first right end cover 1122 is fixed opposite to the transmission shaft 1110, and optionally, the first right end cover 1122 is directly fixedly connected to the transmission shaft 1110. The first right end cover 1122 and the left end cover 1121 are arranged at an interval, one side of the first right end cover 1122 close to the left end cover 1121 is provided with a one-way check plate 1123, the oil supply capillary tube 1130 penetrates through the first right end cover 1122 to be connected with the one-way check plate 1123, and oil pressure pushes the one-way check plate 1123 open when the oil pump supplies oil continuously. The oil tanker inner hull 1124 is disposed in a cylindrical shape and is fixed between the left end cover 1121 and the first right end cover 1122. The oil tanker outer shell 1125 is the tube-shape setting and fixed locates the centre of left end cover 1121 and first right end cover 1122, and oil tanker outer shell 1125 arranges outside the oil tanker inner shell 1124, and oil tanker outer shell 1125, oil tanker inner shell 1124, left end cover 1121, first right end cover 1122 enclose jointly and close and form oil tanker oil storage chamber 1126, and oil tanker surface recess 1125a locates the outer fringe of oil tanker outer shell 1125, and oil outlet 1125b runs through oil tanker outer shell 1125 and sets up.

The inner hull 1124 and outer hull 1125 may be made of seamless steel, and the shaft 1110 may be made of seamless steel. The fixed connection of the left end cover 1121 and the transmission shaft 1110, the fixed connection of the left end cover 1121 and the tanker outer shell 1125, the fixed connection of the left end cover 1121 and the tanker inner shell 1124, the relative fixation of the first right end cover 1122 and the transmission shaft 1110, the fixed connection of the first right end cover 1122 and the tanker outer shell 1125, and the fixed connection of the first right end cover 1122 and the tanker inner shell 1124 can all adopt a screw connection mode. In other embodiments, welding, etc. may also be used. In the screw connection, internal threads may be tapped at both axial ends of the inner hull 1124 and at both axial ends of the outer hull 1125.

The oil supply capillary 1130 is communicated with the oil storage cavity 1126 of the oil tanker through the one-way check plate 1123, and the one-way check plate 1123 plays a role in limiting a single direction, so that stable oiling is facilitated. One end of the oil supply capillary 1130, which is far away from the oil storage cavity 1126 of the oil tanker, can be additionally connected with a hose by a loop hoop, the hose is connected with an oil pump, the oil pump generates pressure for supplying oil, the oil enters the oil supply capillary 1130 through the hose, the oil pushes the one-way check plate 1123 to enter the oil storage cavity 1126 of the oil tanker, and the amount of the oil in the oil storage cavity 1126 of the oil tanker is determined by the pump supply amount of the oil pump.

Optionally, referring to fig. 41 and 42, the tanker hull 1120 further includes a second right end cover 1127, the second right end cover 1127 is disposed on a side of the first right end cover 1122 away from the left end cover 1121, the second right end cover 1127 is respectively fixedly connected to the first right end cover 1122 and the transmission shaft 1110, and a cavity 1127a for the oil supply capillary 1130 to pass through is defined by the second right end cover 1127 and the first right end cover 1122.

Optionally, the first right end cover 1122 is fixedly connected to the second right end cover 1127, and the second right end cover 1127 is fixedly connected to the transmission shaft 1110, so as to fix the first right end cover 1122 and the transmission shaft 1110 relatively. In this embodiment, the second right end cover 1127 is fixedly connected to the transmission shaft 1110, and the first right end cover 1122 is not directly fixed to the transmission shaft 1110, so that the installation is facilitated and the installation difficulty is reduced. In the present embodiment, when the first right end cover 1122 and the second right end cover 1127 are fixedly connected by screws, as shown in fig. 41, the second right end cover 1127 and the transmission shaft 1110 may be fixedly connected by screws. The second right end cover 1127 covers the portion of the tube of the oil supply capillary 1130 that is exposed from the first right end cover 1122.

Optionally, the oil supply capillary 1130 is partially inserted into the through hole 1111 of the transmission shaft 1110, which is disposed along the axis, so as to facilitate the rotation of the oil supply capillary 1130 with the transmission shaft 1110.

Optionally, referring to fig. 41 and 42, the oil supply capillary 1130 includes a first L-shaped capillary 1131 and a second L-shaped capillary 1132, one end of the first L-shaped capillary 1131 is communicated with the check plate 1123, the other end of the first L-shaped capillary 1131 and one end of the second L-shaped capillary 1132 are fixedly connected to a chamber 1127a enclosed by the second right end cover 1127 and the first right end cover 1122, and the second L-shaped capillary 1132 is partially inserted into the through hole 1111 of the transmission shaft 1110 and arranged along the axis. Wherein the enlarged view of fig. 41 shows the junction of the first L-shaped capillary 1131 and the second L-shaped capillary 1132. The connection between the first L-shaped capillary 1131 and the second L-shaped capillary 1132 may be achieved by means of a clamp, a high-temperature fusion, or the like to integrate the two tubes. The oil supply capillary 1130 is assembled by two L-shaped pipes, and is easy to assemble and disassemble.

Optionally, as shown in fig. 42, the tanker hull 1120 further comprises gaskets 1128, the gaskets 1128 being disposed between the tanker inner hull 1124 and the left end cover 1121, between the tanker inner hull 1124 and the first right end cover 1122, between the tanker outer hull 1125 and the left end cover 1121, and between the tanker outer hull 1125 and the first right end cover 1122. The sealing performance of oil storage cavity 1126 of the oil tanker is improved by the sealing gasket 1128.

Optionally, referring to fig. 41 and 43, the oil tanker further includes an oil receiving box 1140, the oil receiving box 1140 is fixedly disposed below the oil tanker shell 1120, and the oil receiving box 1140 is further provided with an overflow hole 1141. The overflow hole 1141 may be provided in the form of an overflow pipe having an overflow port disposed higher than the bottom side of the oil receiving box 1140. The oil is collected by the oil receiver 1140 and the collected oil is discharged from the overflow holes 1141. During oiling, the oil tanker shell 1120 rotates, the oil receiving box 1140 is fixed, and oil collected in the oil receiving box 1140 can further oil spinning.

Alternatively, the drive shaft 1110 is driven by a motor, by way of a coupling, gear drive, chain drive, or the like. When a chain drive is used, a sprocket and a chain are involved. It is understood that the drive shaft 1110 is configured with bearings.

Optionally, as shown in fig. 44, for each tanker pair, there are further provided a first tension bar 1151 and a second tension bar 1152 respectively located on both sides of the tow 30, each of the first tension bar 1151 and the second tension bar 1152 is in movable contact with the tow 30, the tanker pair includes an upper tanker 1153 and a lower tanker 1154, the tanker 1153, the first tension bar 1151, the second tension bar 1152 and the lower tanker 1154 are arranged in sequence in the height direction, the upper tanker 1153 and the second tension bar 1152 are located on the same side of the tow 30, and the lower tanker 1154 and the first tension bar 1151 are located on the other side of the tow 30.

Through the double-sided oiling mechanism 1100 of the embodiment, when oiling is performed on 55dtex-2222dtex bio-based polyamide industrial yarns, when the spinning speed is low, the contact range of the tows 30 and the surface of an oil tanker is large, an oil film formed on the surface of the oil tanker is stable, and the tows 30 can obtain a uniform oil film so as to meet the requirement of subsequent large-multiple hot drawing processing.

While preferred embodiments of the present invention have been described, additional variations and modifications in those embodiments may occur to those skilled in the art once they learn of the basic inventive concepts. Therefore, it is intended that the appended claims be interpreted as including preferred embodiments and all such alterations and modifications as fall within the scope of the utility model.

It will be apparent to those skilled in the art that various changes and modifications may be made in the present invention without departing from the spirit and scope of the utility model. Thus, if such modifications and variations of the present invention fall within the scope of the claims of the present invention and their equivalents, the present invention is also intended to include such modifications and variations.

Claims (10)

1. An industrial bio-based polyamide spinning drafting and winding combination machine is characterized by comprising a screw extruder, a melt pipeline, a spinning box body, a metering pump, a spinning assembly, a slow cooler, a monomer suction mechanism, a side blowing component, a channel component, a double-sided oiling mechanism, a pre-network component, a yarn guide component, a feeding yarn dividing tension roller, a first heating plate, a first pair of drafting hot rollers, a second heating plate, a second pair of drafting hot rollers, a third heating plate, a third pair of drafting hot rollers, a fourth heating plate, a fourth pair of drafting hot rollers, a fifth pair of drafting hot rollers, a final network component and a full-automatic winding head which are sequentially arranged according to a production process;

the first heating plate, the second heating plate, the third heating plate, the fourth heating plate and the fifth heating plate heat tows in the area between two adjacent rollers;

and the two adjacent rotary directions of the filament bundle wound through the first pair of drawing hot rollers, the second pair of drawing hot rollers, the third pair of drawing hot rollers and the fourth pair of drawing hot rollers are opposite to each other so as to spin 55dtex-2222dtex bio-based polyamide industrial yarn.

2. The industrial bio-based polyamide spinning, drawing and winding combination machine as claimed in claim 1, wherein the feeding splitting tension roller is a fixed cold roller cooperating with an angle-adjustable splitting roller, and the first pair of drawing hot rollers, the second pair of drawing hot rollers, the third pair of drawing hot rollers, the fourth pair of drawing hot rollers and the fifth pair of drawing hot rollers are angle-adjustable hot rollers cooperating with angle-adjustable hot rollers;

the first pair of drawing hot rollers are low-temperature rollers, and the second pair of drawing hot rollers, the third pair of drawing hot rollers, the fourth pair of drawing hot rollers and the fifth pair of drawing hot rollers are high-temperature rollers;

the drawing ratio of the feeding yarn dividing tension roller to the first pair of drawing hot rollers is kept between 1: (1.04-1.08), the draft multiple of the first pair of drawing heat rollers and the second pair of drawing heat rollers is 1.5 to 3.5 times, the draft multiple of the second pair of drawing heat rollers and the third pair of drawing heat rollers is 2.0 to 3.5 times, the draft multiple of the third pair of drawing heat rollers and the fourth pair of drawing heat rollers is generally 1.7 to 2.5 times, and the draft multiple of the fourth pair of drawing heat rollers and the fifth pair of drawing heat rollers is 0.9 to 1.0 times.

3. The spinning, drafting and winding combination machine for industrial bio-based polyamide as claimed in claim 2, wherein the first heating plate is set to a heating temperature of 50-65 ℃ when spinning 55dtex-111dtex bio-based polyamide industrial yarn, the first pair of drafting hot rollers is set to a temperature of 75-100 ℃ when spinning 1670dtex-2222dtex bio-based polyamide industrial yarn, the first heating plate is set to a heating temperature of 70-90 ℃ and the first pair of drafting hot rollers is set to a temperature of 75-100 ℃;

the set heating temperature of the second heating plate is set to be 95-115 ℃, and the temperature of the second pair of drafting hot rollers is set to be 110-145 ℃;

the heating temperature of the third heating plate is set to 110-155 ℃, and the temperature of the third pair of drafting hot rollers is set to 130-150 ℃;

the heating temperature of the fourth heating plate is set to 125-195 ℃, and the temperature of the fourth pair of drafting hot rollers is set to 130-150 ℃;

the heating temperature of the fifth heating plate is set to be 140-220 ℃, and the temperature of the fifth pair of drafting heating rollers is set to be 130-210 ℃.

4. The industrial bio-based polyamide spinning, drawing and winding combination machine according to claim 1, wherein an extruder screw is provided in the screw extruder, the extruder screw comprises a screw feeding section, a screw compressing section and a screw metering section, one end of the screw feeding section is detachably connected with one end of the screw compressing section, and the other end of the screw compressing section is detachably connected with one end of the screw metering section;

the screw extruder is provided with an extrusion head, the extrusion head comprises a pressure sensor for detecting the value of a melt pressure, and the extrusion head is provided with a pre-filtering ring in a melt channel.

5. The industrial bio-based polyamide spin draw-winding combination machine according to claim 1, wherein the melt duct comprises:

one end of the melt header pipe is connected with the screw extruder;

one end of each melt branch pipe is communicated with the other end of the melt main pipe, and the other ends of the melt branch pipes are connected with the spinning manifold bodies one by one;

the conveying pumps are arranged on the melt branch pipes one by one;

the melt pressure measuring element of the melt pipeline is arranged on the melt main pipe;

the spinning manifold is provided with a spinning manifold melt pressure measuring element, and the melt pipeline melt pressure measuring element and the spinning manifold melt pressure measuring element are both connected with an electrical frequency converter to assist the electrical frequency converter in regulating and controlling the delivery pump.

6. The industrial bio-based polyamide spin draw-winding combination machine according to claim 5, wherein the melt duct comprises:

a melt line heater assembly mounted to the melt header and the melt branch; and

the plurality of melt pipeline temperature measuring elements are arranged on the plurality of melt branch pipes one by one so as to detect the temperature of the melt flowing through the melt branch pipes;

the melt duct heater assembly includes:

a plurality of melt line electrical heaters disposed around the melt header and the melt branch lines; and

the melt pipeline metal filler is arranged between the electric heater of the melt pipeline and the cavity wall of the melt cavity of the melt main pipe, and between the electric heater of the melt pipeline and the cavity wall of the melt cavity of the melt branch pipe.

7. The industrial bio-based polyamide spin draw-winding combination machine of claim 1, wherein said spinning beam comprises:

an upper box body;

the lower box body is fixedly connected with the upper box body;

the metering pump is mounted on the detachable pump base, and the metering pump and the detachable pump base are both arranged in the upper box body;

the spinning assembly is arranged in the lower box body;

the box body pipeline comprises a melt pipeline and a detachable pump seat which are communicated, and a spinning assembly which is communicated with the detachable pump seat;

the upper box body heater assembly is arranged on the upper box body;

the lower box body heater assembly is arranged on the lower box body; and

and the spinning box metal fillers are respectively arranged in the upper box body and the lower box body.

8. The industrial bio-based polyamide spinning, drawing and winding combination machine according to claim 1, wherein said monomer suction mechanism comprises:

the suction body is provided with a body channel communicated with the spinning assembly, a slow cooler is arranged between the single body suction mechanism and the spinning assembly, and the slow cooler sprays superheated steam to tows coming out of the spinning assembly to form hot steam containing single bodies;

the suction assembly comprises a suction pipeline communicated with the body channel, a vacuum pump arranged on the suction pipeline, a compressed air pipeline with one end being filled with compressed air, and a heating coil arranged around the suction pipeline, wherein the other end of the compressed air pipeline extends into the suction pipeline between the suction body and the vacuum pump, and the heating coil is arranged between the suction body and the compressed air pipeline;

and the rectifying heating plates are arranged in the body channel at intervals, a rectifying channel communicated with the suction pipeline is formed in the body channel, and the hot steam containing the monomer is adsorbed to the suction pipeline through the rectifying channel.

9. The industrial bio-based polyamide spinning, drawing and winding combination machine according to claim 8, wherein the suction duct includes a first straight section, a second inclined section, a third straight section, a fourth inclined section and a fifth straight section which are connected in sequence, the first straight section is fixedly connected with the suction body, the heating coil is disposed on the first straight section, the vacuum pump is mounted at the other end of the fifth straight section, the suction duct further includes an exhaust pipe, and the exhaust pipe is mounted at the other end of the vacuum pump;

a nozzle is arranged at one end of the compressed air pipeline, the nozzle is arranged in the suction pipeline and is arranged at the junction of the second inclined pipe section and the third straight pipe section, and an opening of the nozzle faces the third straight pipe section, so that a primary negative pressure area is formed in the third straight pipe section;

the inner diameter of the third straight pipe section is smaller than that of the fifth straight pipe section, so that a secondary negative pressure area is formed in the fourth inclined pipe section;

the inner diameter of the third straight pipe section is smaller than that of the first straight pipe section.

10. The industrial bio-based polyamide spinning-drawing-winding combination machine according to claim 1, wherein the double-sided oiling mechanism comprises a pair of oil tankers on both sides of the tow, the oil tankers being arranged in a staggered up and down arrangement, the oil tankers comprising:

a drive shaft;

the oil wheel shell is coaxially fixed with the transmission shaft, oil wheel surface grooves are circumferentially arranged on the outer periphery of the oil wheel shell, an oil wheel oil storage cavity is formed in the oil wheel shell, the oil wheel shell is provided with a plurality of oil outlet holes which are circumferentially arranged at intervals, one end of each oil outlet hole is communicated with the oil wheel oil storage cavity, the other end of each oil outlet hole is communicated with the oil wheel surface groove, and the oil wheel surface grooves are configured to be in movable contact with the tows;

and one end of the oil supply capillary tube is communicated with the oil storage cavity of the oil tanker to supply oil to the oil storage cavity of the oil tanker.

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