Polyester spinning machine which technical requirements

1 polyester spinning machine melt extrusion system

1.1 Extruder gearbox and metering pump gearbox should be running smoothly, lubricated well, no abnormal vibration and sound.

1.2 Under normal working conditions, the surface temperature of the extruder gearbox does not exceed 30 ℃, and the surface temperature of the metering pump gearbox does not exceed 20 ℃. Ambient temperature ≤ 28 ℃, the spinning box insulation cover before and after the surface temperature of the panel <65 ℃.

1.3 Melt pipe connection flange No melt leakage phenomenon.

1.4 The spinning side of the wind blowing wind speed stability, silk Cambodia without drastic or loose wire phenomenon. The difference between the wind speed is not greater than 40%.

1.5 tow channel smooth, not hanging wire.

1.6 Biphenyl pipeline in the installation process, the sealing joints sealed and reliable, all the pressure parts of the weld must be 0.4MPa air tightness test shall not leak.

1.7 Manufacture and inspection of spinning boxes and biphenyl heaters shall be in accordance with Articles 54 to 56, 63 to 65, 69-7 to 2 and GB 150 of the Ministry of Labor of the People's Republic of China, "Pressure Vessel Safety Technical Supervision Regulations" Regulations.

1.8 metering pumps shall comply with FZ / T 92026.

1.9 Spinning board should be in accordance with FZ / T 92038.

2 Polyester spinning machine winding system

2.1 on the tanker rotation smooth, oil evenly.

2.2 radial guide run of the upper and lower guide wire plate after installation ≤ 0.05 mm.

2.3 guide wire at 3000 r / min when the school balance, the remaining offset ≤ 0.005 mm.

2.4 friction roller and bobbin chuck mounted parallelism, 1 ≤ 0.10 mm.

2.5 The vibration speed of the winding head at 1000 m / min is not more than 4 mm / s.

3 Polyester spinning machine electrical and automatic control part

3.1 screw extruder temperature control accuracy of ± 2 ℃.

3.2 spinning box temperature difference does not exceed 3 ℃.

3.3 Extrusion machine melt pressure control accuracy ± 0.3 MPa.

3.4 Frequency accuracy of the inverter ± 0.1%.

3.5 Electrical control cabinet should comply with FZ / T 99014 regulations.

4 polyester spinning machine machine appearance coating should meet the FZ / T 90074 requirements.

5 Polyester spinning machine test method

Under normal conditions of use, use the surface thermometer in the transmission box and gearbox surface and insulation cover before and after the measurement of the average temperature does not exceed the provisions of 4.1.2.