The automatic film mulching machine is not in place: the vacuum degree is not enough, the air leakage is not enough, the temperature is not enough, the film is too thin, the workpiece is pasted with other materials, the concave depth of the workpiece is higher than that of the membrane, the suction time is too short, the film is not pulled up, and the workpiece distance is too close.

The work vacuum does not come up: the air road is not through, the hand valve or the solenoid valve is not closed, the vacuum pump motor belt is loose and the vacuum table is damaged.

The film is pulled down when the suction is not reached: whether the solenoid valve or the hand valve is opened.

The temperature measurement is inaccurate: whether the thermocouple or thermostat is wrong or damaged or not;

The film mulching machine does not start: the input wire is inaccessible, the power line is connected, the voltage is not enough.