Spinning turns a polymer into a colloidal solution or melt, then extrudes it through fine holes in a spinneret to form chemical fibers. A spinning machine handles oil application, drawing, setting, cooling, cutting, and packing.
Definition
Spinning is a key step in making chemical fibers. A polymer is made into a colloidal solution or melt. A metering pump sends the solution or melt to the spinneret. The spinneret extrudes it through fine holes to form fibers. Based on the forming method, spinning divides into solution spinning and melt spinning.
Working principle
Oil application: The tow passes through an oil bath at low tension. The oil is heated to 40 to 50°C. This gives the tow a uniform oil finish needed for continuous drawing. It keeps the tow smooth and cohesive.
Drawing: The tow enters the drawing machine. Draw rollers guide and hold the tow in position. The tow gets the required stretch and orientation.
Setting: Between the second drawing zone and the hot setting machine, the tow is treated under tension and high temperature. The macromolecular structure reaches full orientation.
Cooling: Steam from the oil on the tow carries away a large amount of heat. This cools the fiber. The cooled fiber is more stable.
Cutting and packing: Under even tension, the tow enters the cutter and is cut to the required length. Cut fiber goes to the baler and is packed as finished product.
For spinning equipment builders, Hansheng Automation can machine custom spinneret plates, metering pump parts, guide rollers, and cutting blades from customer drawings, in single pieces or small batches.
Beyond spinning machine parts, our precision component customization covers more than one industry. We machine filling machinery parts, medical device components, yacht precision components, RC car precision components, tobacco packaging machinery parts, printing machinery parts, and food machinery parts. Hansheng Automation works from customer drawings and delivers one-off or batch parts to the required material, tolerance, and surface finish. Our scope is precision components, not complete machines.
