Spinning-drawing-winding device and combined machine for industrial bio-based polyamide

A combined spinning-drawing-winding machine for industrial bio-based polyamide, comprising the following disposed in sequence according to a production process:

• a screw extruder, a melt pipe, a spinning box, a metering pump, a spinning assembly, a heat-retarder, a monomer suction mechanism, a side blowing component, a spinning channel component, a double-surface oiling mechanism, a pre-interlacer, a filament guider, a feeding-splitting filament tension roller, a first heating plate, a first pair of drawing hot rollers, a second heating plate, a second pair of drawing hot rollers, a third heating plate, a third pair of drawing hot rollers, a fourth heating plate, a fourth pair of drawing hot rollers, a fifth heating plate, a fifth pair of drawing hot rollers, a final interlacer and a fully automatic winding head;
• the first heating plate, the second heating plate, the third heating plate, the fourth heating plate and the fifth heating plate each heat the tow in areas between two adjacent rollers;
• and
• two adjacent rotational directions among a rotational direction of the tow winding through the first pair of drawing hot rollers, a rotational direction of the tow winding through the second pair of drawing hot rollers, a rotational direction of the tow winding through the third pair of drawing hot rollers, a rotational direction of the tow winding through the fourth pair of drawing hot rollers are opposite to each other to spin an industrial bio-based polyamide filament of 55 dtex-2222 dtex;
• wherein when the tow travels from the feeding-splitting filament tension roller to the first pair of drawing hot rollers, the rotational direction of the tow winding through the feeding-splitting filament tension roller is the counterclockwise direction, and the rotational direction of the tow winding through the first pair of drawing hot rollers is the counterclockwise direction, and thus the feeding-splitting filament tension roller directly contacts and heats a N surface of the tow, and the first pair of drawing hot rollers directly contact and heat the N surface of the tow;
• and wherein the rotational direction of the tow winding through the second pair of drawing hot rollers is the clockwise direction, and the second pair of drawing hot rollers directly contact and heat a M surface of the tow;
• and wherein the rotational direction of the tow winding through the third pair of drawing hot rollers is the counterclockwise direction, and the third pair of drawing hot rollers directly contact and heat the N surface of the tow;
• and wherein the rotational direction of the tow winding through the fourth pair of drawing hot rollers is the clockwise direction, and the fourth pair of drawing hot rollers directly contact and heat the M surface of the tow;
• and thus the N surface of the tow, the M surface of the tow are sequentially contacted and heated respectively by the first pair of drawing hot rollers up to the fourth pair of drawing hot rollers.