Question

Which of the following is measured on the drafting roller in spinning, using NILO meter?

• A. Pressure
• B. Speed
• C. Vibration
• D. Setting

Hint:

• NILO meter} (Nip Load Meter or Top Roller Pressure Gauge) measures the pressure or load exerted by top drafting rollers on bottom rollers.
• This measurement is crucial for ensuring proper fiber control during drafting in spinning preparatory and spinning machines.
• It does not measure speed, vibration, or roller gap settings.

Answer 1

The Correct Option is A

A NILO meter (often a brand name or generic term for a Nip Load Meter) is an instrument used to measure the nip pressure or nip load between pairs of drafting rollers in spinning machinery (e.g., draw frame, roving frame, ring frame). Proper nip pressure is essential for:

• Effective gripping and control of fibers during drafting.
• Preventing fiber slippage (if pressure is too low).
• Avoiding damage to fibers or roller coverings (cots) and excessive wear (if pressure is too high).

The NILO meter typically contains a sensor that is placed between the top and bottom rollers at the nip, and it indicates the force being applied. The other options are measured differently:

• Speed: Measured by tachometers.
• Vibration: Measured by vibration sensors/analyzers.
• Setting: Refers to roller gap/stand, measured by feeler gauges or setting gauges.

Thus, a NILO meter measures pressure or load. \[ \boxed{\text{Pressure}} \]