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Jiangxi Ronghua Textile Machinery Co., Ltd. produces all kinds of spinning machinery, polypropylene FDY spinning machine is our company's spinning machine. We will now discuss the properties of the spinning machine for the polypropylene FDY spinning machine.

 

Polypropylene FDY spinning machine for polyester, nylon and polypropylene and other spinning equipment. Characterized by the melt flow into the cold air coagulation into the fiber, the cold is the high efficiency filters, regulating valve, diversion device evenly after the stream to the small flow. Spinning speed is high, generally 600 ~ 1500 m / min. There are two types of melt spinning machines.

① filament spinning machine: polymer chips from the hopper into the screw extruder is melted and propelled by the screw into the spinning box through the catheter. Melt in the box by the spinning pump metering delivery to the spinneret (plate), from the spinning hole extrusion melt flow in the spinning window in the face of cold air cooling and curing into fiber, oil by the volume The winding mechanism is wound around the bobbin. The number of holes in the spinneret of a filament is generally several to several tens of pores. Spinning wire up to about 200 holes, spinning brown silk when there is only one hole, this time melt flow with water bath cooling solidified into wire. The trend of melt-spun filament spinning machine in the 1970s is: long spinning, that is, each spinning site with 2,3,4,6 or even more spinneret to improve the machine's output; high-speed spinning Silk, spinning speed of 3500 ~ 4000 m / min, even as high as 5000 m / min or more; large package, each package of cheese volume of up to 10 kg to dozens of kilograms; continuous, spinning and stretching in A spinning machine at the same time to complete, but also to spinning, stretching, deformation processes are completed on a spinning machine (referred to as BCF production), in the production of polypropylene and nylon has been applied. This machine structure is compact, small footprint, high production efficiency. In addition, the degree of automation of spinning machines is also increasing.

② short fiber spinning machine: Compared with the filament spinning machine, which is characterized by a large number of porous spinneret, the general number of holes 400 ~ 1100, has been developed for porous spinning, the number of holes as much as 4000; In the spinning corridor in the use of circular blowing or blowing side with the side of the hair blowing cooling system, the spinning site without a separate winding mechanism, the various parts of the wire by the godet or small rotor, the towing machine tow Leading to the feeding wire wheel, and then placed in tow Sheng silk bucket. The capacity of each wire can reach 450 ~ 2000 kg. Large-scale synthetic fiber plant production of short fibers, often using direct spinning. There have been non-spinning corridor short-range spinning machine.