1. Daily Routine Maintenance
After Each Production Shift
Clean material contact parts including hopper, screw feeder and weighing chamber. Remove residual powder and granules to prevent material caking and clogging. Check sealing parts for material residue.
Weekly Maintenance
Inspect the dual metering system, check screw and buffer feeding parts for wear. Clean negative‑pressure dust removal filter. Confirm the tightness of drive belts and screws.
Monthly Maintenance
Lubricate moving components. Check PLC touch screen, sensor signal and sealing heater. Verify metering accuracy by test-run. Replace heavily worn spare parts in advance.
Important Reminder
All cleaning and maintenance work must be carried out after power-off. For food‑grade production, use food‑safe cleaning agents.
2. Common Failures & Solutions
Problem 1: Inaccurate weighing / uneven bag weight
Possible causes: Material bridging & clogging; sensor drift; worn screw feeding parts.
Solutions: Activate anti‑bridging agitator; recalibrate metering sensor; inspect and replace worn components.
Problem 2: Powder dust leakage and overflow
Possible causes: Blocked dust-removal filter; poor sealing of filling outlet.
Solutions: Clean or replace dust-removal filter; check and adjust filling sealing structure.
Problem 3: Granule material broken at high rate
Possible causes: Too fast feeding speed; damaged buffer feeding structure.
Solutions: Lower feeding speed on touch panel; inspect and repair buffer anti‑breakage assembly.
Problem 4: Poor sealing, bag opening or wrinkled seal
Possible causes: Unstable sealing temperature; dirt on sealing jaws; film tension abnormal.
Solutions: Adjust constant-temperature sealing parameters; clean sealing jaws; tune film traction tension.
Problem 5: Mode switching failure between powder and granule
Possible causes: Parameter loss; sensor signal error.
Solutions: Reload saved preset parameters; restart the system; check connection of sensors.
3. What Should Be Avoided During Operation
- Do not run the machine without material inside the hopper for long time, which will wear the screw metering parts.
- Do not clean powered-on equipment, avoid electric shock and mechanical injury.
- Do not operate with blocked dust-removal system, dust will pollute workshop and affect metering precision.
- Do not use non-food-grade lubricant for food production machines.
4. Spare-part Suggestion for Overseas Users
Prepare quick‑wear spare parts in local warehouse: sealing jaws, dust‑removal filter, sealing strip. It can greatly shorten downtime when parts need replacement.
Conclusion
Regular maintenance can greatly reduce unexpected breakdowns of powder & granule dual‑purpose packaging machine. Most common faults can be solved by simple inspection and parameter adjustment before contacting after‑sales support.
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