The problems that the noodle machine may encounter during operation include equipment operation, noodle quality, safe operation, and environmental adaptation. The following are detailed classifications and solutions:

1、 Equipment operation issues

1. Difficulty or inability to start

• reason：
  • Power failure (unstable voltage, short circuit, blown fuse).
  • Motor overload (stuck transmission components, damaged bearings).
  • Control system malfunction (sensor failure, program error).
• Solution：
  • Check the power circuit, replace damaged fuses or adjust the voltage.
  • Clean up debris from transmission components such as chains and gears, and replace worn bearings.
  • Restart the control system or contact the manufacturer for program debugging.

2. Abnormal noise or vibration during operation

• reason：
  • Loose components (bolts and nuts not tightened).
  • Bearing damage or insufficient lubrication.
  • Wear or improper tension of the drive belt/chain.
• Solution：
  • Tighten all connecting components, check and replace loose bolts.
  • Add or replace lubricating oil, and check if the bearings need to be replaced.
  • Adjust the tension of the drive belt/chain, or replace worn parts.

3. Leakage or uneven powder discharge

• reason：
  • The mold (screen) is damaged or blocked.
  • The gap between the propeller and the mold is too large.
  • Improper concentration of starch slurry (too thin or too thick).
• Solution：
  • Clean or replace the mold to ensure that the screen mesh is not damaged.
  • Adjust the gap between the propeller and the mold (usually 0.5-1mm).
  • Control the concentration of starch slurry (recommended 18% -22%) by adding water or powder.

2、 Quality issues with vermicelli

1. The noodles are broken or fragile

• reason：
  • Poor starch quality (low protein content, insufficient branched starch).
  • Insufficient aging (insufficient gelatinization of starch).
  • Drying too quickly (due to high temperature or excessive wind speed).
• Solution：
  • Select sweet potatoes and potato starch with high branched starch content.
  • Extend the aging time (4-6 hours) to ensure sufficient gelatinization of starch.
  • Adjust the drying temperature (50-60 ℃) and wind speed to avoid rapid surface hardening.

2. Adhesive or merging of noodles

• reason：
  • The concentration of starch slurry is too high (poor fluidity).
  • The mold temperature is too low (the powder strip is not shaped in time).
  • Insufficient cooling (cutting before solidification).
• Solution：
  • Reduce the concentration of starch slurry to 18% -20%.
  • Raise the mold temperature (80-90 ℃) to ensure rapid shaping of the powder strips.
  • Extend the cooling time (10-15 minutes) or add cooling devices (such as a cold water tank).

3. Abnormal color of vermicelli

• reason：
  • Starch impurities are abundant (including soil and pigments).
  • Excessive additives (such as alum, pigments).
  • The equipment is not cleaned thoroughly (residual oxidizing substances).
• Solution：
  • Select pure starch and filter to remove impurities.
  • Strictly control the dosage of additives (alum ≤ 0.1%).
  • Clean the equipment to prevent metal parts from oxidizing and contaminating the powder strips.

3、 Safety operation issues

1. Mechanical injury risk

• reason：
  • Clean the equipment without turning off the power during operation.
  • Lack of protective devices (such as conveyor belt shields).
  • Wearing loose clothing or not tying up long hair in violation of regulations.
• Solution：
  • Power off and hang warning signs before cleaning or repairing.
  • Install and inspect protective devices (shields, emergency stop buttons).
  • Wear tight fitting work clothes and tie up long hair during operation.

2. Electrical malfunction or electric shock

• reason：
  • The circuit is aging or damaged.
  • The humid environment leads to insulation failure.
  • Not grounded or poorly grounded.
• Solution：
  • Regularly inspect the circuit and replace aging cables.
  • Keep the equipment dry and avoid operating in humid environments.
  • Ensure reliable grounding of the equipment and install leakage protectors.

3. High temperature burns

• reason：
  • Contact heating components (such as molds, drying ovens).
  • Steam leakage (such as aging sealing rings).
• Solution：
  • Wear insulated gloves during operation to avoid direct contact with high-temperature components.
  • Regularly inspect the sealing ring, replace aging components, and prevent steam leakage.

4、 Environmental and efficiency issues

1. Low production efficiency

• reason：
  • Insufficient supply of raw materials (poor transportation of starch slurry).
  • Improper device parameter settings (such as low propeller speed).
  • Mold blockage leads to a decrease in powder output.
• Solution：
  • Ensure stable supply of starch slurry and check if the conveying pipeline is unobstructed.
  • Adjust equipment parameters (such as propeller speed, mold temperature).
  • Regularly clean the mold to avoid blockage.

2. High energy consumption

• reason：
  • Equipment aging (decreased motor efficiency).
  • Poor insulation of the heating system (heat loss).
  • Frequent start stop cycles lead to increased energy consumption.
• Solution：
  • Replace high-efficiency motors and regularly maintain equipment.
  • Strengthen the insulation of the heating system (such as adding insulation layers).
  • Optimize the production process and reduce the number of equipment starts and stops.

5、 Maintenance and upkeep issues

1. The components wear out quickly

• reason：
  • Insufficient lubrication (dry grinding of bearings and gears).
  • The raw material contains hard particles (such as sand and gravel).
  • Improper operation (such as frequent overloading).
• Solution：
  • Regularly replenish lubricating oil and establish lubrication records.
  • Filter raw materials to remove hard particles.
  • Avoid overloading operation and produce at rated capacity.

2. Cleaning is not sufficientclean

• reason：
  • The residual starch slurry is difficult to clean after hardening.
  • Improper cleaning tools (such as steel wire balls scratching equipment).
  • Insufficient cleaning frequency.
• Solution：
  • Immediately rinse the equipment with warm water after each use.
  • Use a soft bristled brush or sponge to clean and avoid scratching the surface.
  • Develop a cleaning plan and clean once a day/week.