FAQ

Hot rolled non-woven fabric process



Incoming cotton: The raw staple fiber is manually placed on the long curtain and conveyed by the long curtain to the inlet of the blender.


Mixed cotton: 1 The amount of cotton fed by the photoelectric control inlet machine is controlled by photoelectricity, and the amount of cotton stored in the blender is quantitatively transferred to the opening of the opening machine.


Opening: The feeding part is controlled by the photoelectric control of the cotton feeding machine to control the feeding amount, and the opened raw material short fiber is sent to the cotton feeding machine through the material pipe through the fan.


Feeding cotton: The raw material staple fiber fed from the opening machine is controlled by a photoelectric switch to control the amount of the raw staple fiber fed to the inlet of the card through the photoelectric meter on the oblique nail curtain.


Pre-combing: use the variable frequency control to enter the thickness or weight to manually fine-tune the speed of the inverter to the paving machine.


Paving net: The raw material entering the paving machine is fed into the main carding machine by laminating the laid sheet-like staple fibers which are vertically and horizontally folded over 5 layers.


Main carding: variable frequency control of the sheet staple fiber sent by the laying machine. The raw material staple fiber is combed by the cylinder, the work roll and the stripping roller. The raw material staple fiber is transferred to the messy roller by the doffer, and the messy roller will be The fiber is scrambled to increase the transverse strength, and the stripping roller peels the forming net from the messy roll to the three-layer composite on the web conveying curtain, and the trimming machine cuts into the hot-rolled cut edge material and sends it to the cotton through the air duct. Inside the machine.


Hot rolling The sheet-like raw material staple fiber which enters the upper and lower heat rolls of the hot rolling mill from the main comb machine is subjected to hot press forming by the temperature and pressure control of the hot roll to adjust the temperature and pressure required for the process. The temperature of the hot roll is 235 to 240 °C by the heating oil furnace. The hot oil is pumped into the upper and lower heat rolls by the hot oil pump. *The heat roller pressure is compressed by the air compressor. The pressure is adjusted by the pressure regulator to 1.2MPa and the pressure is 0.8 to 0.9MPa.


The product from the hot rolling mill is wound by a trimming length to be wound into a roll having a maximum diameter of 800 mm.


Finished product inspection Weighing According to product quality standards, sampling and testing its physical indicators can be used to weigh each product.