Continuous terylene BCF (Bulk Continuous Filament) spinning machine

Abstract

The invention discloses a continuous terylene BCF (Bulk Continuous Filament) spinning machine which belongs to the technical field of chemical fiber spinning equipment. The continuous terylene BCF spinning machine comprises a material dryer, a material absorbing device, a metering device, a material mixing hopper, a screw extruder, a diphenyl furnace, a spinneret plate with trilobal or Y-shaped spinneret micropores, a lateral air blowing device, a spinning channel and a tensile strain winder, wherein the tensile strain winder comprises primary tension devices, and each primary tension device comprises a feeding heat roller and two traction heat rollers; and the continuous terylene BCF spinning machine is characterized in that the material dryer comprises a feeding hopper, a crystallization bed, a drying tank and a storage hopper which are connected through material delivering pipes; the material mixing hopper is communicated with a nitrogen device or a steel nitrogen cylinder; the front section of a screw of the screw extruder is a mixing head provided with a plurality of round nails; and the tensile strain winder comprises a secondary tension device behind or between the primary tension device. The continuous terylene BCF spinning machine can spin a high-quality terylene BCF used for carpet suede materials, which has soft hand feel, high strength, good elasticity, good bulkiness and good spinnability, can be printed and dyed, and is dyed in the mass.

Description

technical field [0001] The invention belongs to the technical field of chemical fiber spinning equipment, in particular to a polyester BCF continuous spinning machine. Background technique [0002] BCF (bulky filament) is mainly used in carpet suede materials. The traditional polypropylene BCF occupies about 80%, but it loses its advantages due to difficult dyeing, low strength and poor elasticity. The traditional nylon BCF occupies about 20%, but because of its high price, it is not welcomed by carpet manufacturers. Polyester raw material polyester chips have low price, stability, and large profit margins, but polyester filaments POY (pre-oriented yarn), FDY (drawn yarn) and DTY (textured yarn) can only be used for clothing fabrics due to their poor bulkiness. , can not be used for carpet suede; and although polyester BCF (bulky filament) has soft hand feeling, high strength, good elasticity, good performance advantages of bulkiness, the polyester BCF spun out by existing ...

AI Technical Summary

Problems solved by technology

Polyester raw material polyester chips have low price, stability, and large profit margins, but polyester filaments POY (pre-oriented yarn), FDY (drawn yarn) and DTY (textured yarn) can only be used for clothing fabrics due to their poor bulkiness. , can not be used for carpet suede; and although polyester BCF (bulky filament) has soft hand feeling, high strength, good elasticity, good performance advantages of bulkiness, the polyester BCF spun out by existing spinning machine is because it can Poor spinnability has seriously affected the quality of BCF used in carpet suede materials; the reason is that the existing spinning machine and polyester chip drying device are drum-type drying tanks, which are expensive due to their large volume, high installation height, and high cost. It is easy to cause sticking and agglomeration of slices; and other fluidized drying devices have complex structures, and the dried materials are different and cannot be matched with polyester BCF continuous spinning machines. For example, the announcement number: CN100584840C, announcement date: 2009-10-28, Patent No.: 200810020953.9 "Vibrating Fluidized Drying System", Announcement No.: CN2389335Y, Announcement Date: 2000-7-26, Patent No.: 99229484.3 "Down-blown Vibrating Fluidized Dryer" and other fluidized drying devices

In addition, the extruder screw of the existing spinning machine is difficult to maintain the melt viscosity, uniformity and stability of temperature; there is only one-stage stretching device in the stretching deformation winding device, such as the announcement number: CN1385563, announcement Date: 2002-12-18, patent number: ZL02105619.6 patented stretching system, publication number: CN201012949, announcement date: 2008-01-30, patent number: ZL200620147451.9 patented stretching system, there are only 3 Or the first-stage drafting of 4 drafting hot rollers, because the draft ratio of the first-stage drafting is small, generally between 3.5-4.5, only polypropylene BCF and nylon BCF can be produced, and polyester BCF is produced due to insufficient stretching , poor spinnability, abnormal production, low production rate, low product breaking strength, poor quality

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