The sealing film keeps rotating and the upper mold does not press down. It may be that the device's electric eye cannot sense it or it is not strong enough. It is recommended that the user adjust the electric eye sense.
Usually, for composite bags with OPP as lining, when the total bag thickness is 80 to 90 μm, the heat sealing temperature should reach 170 to 180°C. For composite bags with PE as lining, When the total thickness is 85~100μm, the temperature should be controlled at 180~200℃. As long as the total thickness of the bag is increased, the heat sealing temperature must be increased accordingly.
The heat sealing speed is too fast: The inability to seal is also related to the speed of the sealing machine. If the speed is too fast, the sealing area will be transported to the cold pressing area by the traction roller for cooling before it has time to heat up, and naturally the heat sealing quality requirements will not be met.
Extended information:
Notes:
1. It is not suitable for metal containers and metal lids, and it cannot be placed on a metal table to press the start button. Otherwise the machine will be damaged.
2. When unpacking the product for inspection and acceptance, under normal transportation and intact packaging, if any parts of the product are found to be inconsistent with the packing list, you should contact the store in time.
3. It is equipped with an automatic protection function for temperature overheating. When the temperature inside the machine is overheated, the buzzer inside the machine will beep for a long time and the yellow indicator light of the abnormal protection (PRO. MD.) will light up. At this time, the power supply should be turned off. switch, the cooling buzzer in standby stops before continuing to work.
4. Use a single-phase three-wire power cord. To ensure the safety of the operator, be sure to use a single-phase three-wire power socket. The ground in the workplace must be dry to maintain insulation.
Baidu Encyclopedia-Automatic Sealing Machine