In the manufacturing world, downtime is the enemy of profitability. When your automatic wet wipe machine stops running, you are losing money by the minute. While high-quality machinery is built to be reliable, the continuous, high-speed nature of wet wipe production means that occasional hiccups are inevitable.
Understanding basic wet wipe machine maintenance and troubleshooting can save you from calling in an expensive technician for a minor issue. Here are the top 5 most common problems encountered with wet wipe packaging equipment and how to fix them.
Issue 1: Packaging Film Tracking Errors
The Problem: The packaging film (the outer wrapper) wanders off-center, resulting in skewed graphics, overlapping seals, or the film snapping entirely. The Solution: * Check the Film Roll: Ensure the film roll is mounted securely and tightly on the expansion shaft.
Adjust the Web Guide: Most modern wet wipe machines feature an automatic web guiding system (often using photoelectric sensors). Clean the sensor lens; dust can cause misreadings.
Inspect Rollers: Check the tension rollers. If they are uneven, dirty, or sticky with adhesive residue, they will pull the film off-center. Clean them with an appropriate industrial solvent.
Issue 2: Inconsistent Liquid Dosing (Wipes are too wet or too dry)
The Problem: The moisture level across the wipes is uneven. Some packs are soaked and leaking, while others are completely dry. The Solution:
Check the Dosing Pump: The liquid dosing system relies on precision pumps. Check if the pump is clogged with residue from the liquid formulation (especially if using thick lotions).
Inspect the Spray Pipes/Nozzles: Remove and clean the liquid distribution pipes. A blocked nozzle will prevent liquid from reaching the non-woven fabric.
Verify PLC Settings: Ensure the liquid volume parameter entered into the touchscreen (HMI) matches your required ratio.
Issue 3: Poor Sealing Quality or Leaking Packs
The Problem: The horizontal or vertical seals on the final package are weak, wrinkled, or not airtight, causing the wipes to dry out on the shelf. The Solution:
Temperature Calibration: Packaging film requires a specific temperature to melt and seal properly. Check the temperature controller on the PLC. If the sealing jaws are too cold, the seal will be weak; if too hot, the film will melt and wrinkle.
Pressure Adjustment: The sealing jaws must apply even pressure. If the pressure is unbalanced, one side of the pack will leak. Adjust the mechanical pressure springs.
Clean the Sealing Jaws: Plastic residue often builds up on the heated sealing jaws. Turn off the heat, let it cool slightly, and use a brass wire brush to clean the grooves.
Issue 4: Non-Woven Fabric Tearing or Jamming
The Problem: The spunlace non-woven fabric snaps during the unwinding or folding process, forcing the machine to halt. The Solution:
Tension Control: This is the most common culprit. If the unwinding tension is too tight, the fabric will stretch and break. Adjust the magnetic powder brake or tension controller settings.
Check the Folding Boards: Examine the stainless steel folding boards. Any tiny burrs, scratches, or dried liquid buildup can catch the high-speed fabric and cause a jam. Keep these surfaces immaculately clean and polished.
Issue 5: Sensor or PLC Errors (Machine Stops Unexpectedly)
The Problem: The machine suddenly triggers an alarm and stops, but mechanically everything looks fine. The Solution:
Read the Error Code: The HMI touchscreen will usually display a specific error code (e.g., “Eye Mark Sensor Error” or “Low Air Pressure”).
Clean the Eye Mark Sensor: If the machine uses printed film with registration marks (eye marks), the optical sensor must read it to cut the pack in the right place. Wipe the sensor clean.
Check Air Supply: Many moving parts on packaging equipment are pneumatic. Ensure your air compressor is delivering the correct, stable pressure to the machine.
Preventative Maintenance is Key
The best troubleshooting is prevention. Partnering with a reliable machinery supplier ensures you get robust equipment that is less prone to breakdowns. At Zhenbao Trading, we supply premium wet wipe machinery built with top-tier international components (like Siemens PLCs and Omron sensors) to guarantee maximum uptime. Furthermore, we provide comprehensive maintenance guides and responsive after-sales support to keep your production line running smoothly.
Visit Zhenbao Trading today to upgrade your facility with reliable, easy-to-maintain wet wipe equipment!