The classification and comparison of Suzhou spinning machines

 (1) According to different fiber spinning methods, spinning machines are divided into three types: wet spinning machine, melt spinning machine and dry spinning machine. 

 (2) According to different fiber varieties, there are filament spinning machines and short fiber spinning machines. 

 The melt spinning machine is composed of screw extruder, spinning box, spinning window, spinning channel and winding machine. Screw and sleeve are important parts in screw extruder. The spinning pump and nozzle assembly are mounted on the pump body in the spinning box. The spinneret in the spinneret assembly is the key part for the melt to form a fine flow. In this case, direct spinning eliminates the need for screw extruder components. It is characterized by high spinning speed and simple spinning process. Used in the production of polyester, cotton and polypropylene.

 The wet spinning machine is composed of spinning pump, filter, pipe spinneret assembly, wire guide roller and coagulation bath. The winding part of the filament spinning machine is added because the post-processing of the filament requires a certain form of winding. Viscose filament spinning machine is divided into centrifugal spinning machine and bobbin spinning machine according to the different winding formation. It is characterized by low spinning speed, complex spinning process and long process. Used in the production of acrylic, Vinylon and viscose fibers. The structure of the dry spinning machine and the melt spinning machine is the same, the difference is: the dry spinning method is a solution spinning, there is a process such as spinning preparation, and the pipe will send the spinning stock to the spinning pump; The melting method is the cooling effect of the spinning room and the channel, and the dry method is the insulation of the channel and the cooling recovery of the flux evaporated from the stock solution. Dry spinning speed is high, used for acrylic, PVC, acetate and other filament production.