The round end cover gluing machine is a key piece of equipment in the packaging and hardware industries. Understanding common fault handling methods ensures production efficiency and product quality.
Overflow of glue is a common problem. It is often caused by the glue control valve getting stuck with glue, resulting in excessive glue supply. When repairing, first turn off the glue pump, disassemble the valve body, and use alcohol to rinse out the impurities inside. Then, calibrate the valve stem stroke to ensure that the glue output error is within ±0.1ml per cycle. If the hose is aged and cracked, please replace the high-pressure silicone hose and fix the interface with a hose clamp to prevent leakage.
Weak bonds are usually caused by abnormal temperatures. If the bonding strength of the hot melt adhesive machine decreases, check if there is carbon buildup on the heating module, clean it with a special scraper, and adjust the temperature to 180-200℃ (depending on the type of adhesive). On the cold adhesive machine, this might be due to insufficient mixing of the adhesive liquid. Disassemble the stirring blades, remove the residual adhesive clusters on the inner walls, and ensure the rotational speed is stable at 300 revolutions per minute.
The clogging of the round end cover gluing machine will affect its smooth operation. If the feed track is stuck, check whether the guide wheel bearings are worn and replace them with bearings of grade P6. Use lithium-based grease. The slippage of the conveyor belt is often caused by insufficient tension. Adjust the tension wheels at both ends to keep the belt deflection within 5-8mm. If necessary, replace the conveyor belt with one having an anti-slip texture surface.
Sensor malfunctions can easily lead to faults. If the photoelectric sensor misreads, please wipe the lens with a lint-free cloth and adjust the sensing distance to 15-20mm to avoid interference from ambient light. If the proximity switch malfunctions, check the terminal block, reconnect and tighten it. If there is still no response, please replace it with a sensor of the same model (IP67 protection grade is recommended).
Regular maintenance of the round end cover gluing machine can prevent most faults. After daily production, the glue gun nozzle should be cleaned. The clearance of the transmission components should be checked weekly, and the hydraulic oil (viscosity index ≥ 140) should be replaced monthly. Maintaining a fault log and formulating a preventive maintenance plan for frequently occurring problems can reduce downtime by more than 30% and ensure the long-term stable operation of the equipment.
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