Sealing machine can not seal the mouth is generally caused by human error, you can first check whether the sealing film is installed in reverse, if it is not caused by man, it may be the sealing machine equipment is faulty. Next, we look at the sealing machine equipment can not seal the mouth of the three points of failure, to see your sealing machine.

Sealing machine can not seal the mouth is what happened? See if those three hit you?

1. Temperature control failure

Temperature controller fault 1: the device does not display after the sealing machine is powered on.

Solution: First check whether the line of sealing machine equipment has been connected to the zero-live wire, and ensure that the zero-live wire power supply can work normally.

Then start to check whether the line between the LCD mainboard and the device drive power supply is loose, and relevant tightening measures need to be taken. Make sure the thermostat switch is on and meets the specified standards.

When the temperature controller is connected, it is necessary to check the related voltage and current of the wiring power supply in advance.

Temperature controller fault two: The device displays normally, but an error occurs during control.

Solution: First of all, check whether the wiring of the equipment is connected well and whether the contact is good. Then you need to check that the wiring is connected correctly.

Two, heating pipe failure

1. Reason 1: In the process of filling powder of sealing machine, magnesium powder is mixed with impurities. After high temperature, these impurities will be carbonized, and there will be pipe bursting phenomenon after long use:

2. Reason two: material selection of sealing machine is very important. There are many kinds of stainless steel. There are also differences between the pipe itself, one is a seam pipe, one is no pipe, the seam steel pipe is welded with steel belt if there is a spot welding is not in place, the pipe will burst, generally no pipe will not appear this problem, may be caused by the quality of the seam pipe:

3, three reasons: the sealing machine stainless steel heating tube is used for heating liquid also has difference, some of them are corrosive liquid, some water, heating water is why water quality, sometimes because a lot more is to use groundwater, or tap water, impurities, easy furring, scale too much too thick, can lead to internal temperature can't spread, resulting in heat pipe explosion.

4. Cause four: The wall of the sealing machine heating tube is too thin or the power setting of the heating tube is too high, the surface load is too large, and the internal temperature is too high, which is easy to cause the internal expansion of the heating tube, resulting in the rupture of the heating tube

Three, sealing machine thermal couple failure

1. Possible causes and treatment of low indicator value (thermocouple thermoelectric potential is smaller than the actual value) :

(1) Hot electrode short circuit, treatment method to find out the cause of short circuit, if caused by moisture, it needs to be dried; If the insulator is damaged, the insulator should be replaced.

(2) Dust accumulates on the junction post of thermocouple or on the surface of protective tube, resulting in short circuit. Cleaning dust accumulates.

(3) Short circuit between compensation wires, find out the short circuit point, strengthen insulation or replace compensation wires.

(4) When the thermocouple thermal electrode deteriorates, the treatment method shall be as long as the length allows, the deteriorated section shall be cut off and welded again, or the thermocouple shall be replaced.

(5) The compensation wire is opposite to the polarity of the thermocouple, and the treatment method is re-connected correctly.

(6) If the compensation wire is not matched with the thermocouple, replace the matching compensation wire.

(7) If the installation position of the thermocouple is improper or the insertion depth does not meet the requirements, the treatment method shall be installed again according to the provisions.

(8) The thermocouple cold end temperature compensation does not meet the requirements, and the treatment method is to adjust the cold end compensator.

(9) The thermocouple is not matched with the display instrument, and the treatment method is to replace the thermocouple or display instrument to make it matched.

2, sealing machine meter indicating value is high (thermocouple thermoelectric potential is larger than the actual value) possible causes and treatment methods:

(1) The thermocouple is not matched with the display instrument, and the treatment method is to replace the thermocouple or display instrument to make it matched.

(2) If the compensation wire is not matched with the thermocouple, replace the compensation wire to make it matched.

(3) If there is dc interference signal entering, the processing method shall exclude DC interference.

(4) If the installation position of thermocouple is improper, change the installation position.

3, sealing machine meter indicator value fluctuation (thermocouple thermoelectric potential output instability) possible causes and treatment methods:

(1) The sealing machine thermocouple terminal is in poor contact with the thermal electrode, and the insulation of the thermocouple measuring line is damaged, resulting in intermittent short circuit or grounding.

(2) Thermocouple installation is not stable or external vibration, treatment method to find out the fault point, repair insulation fastening thermocouple, eliminate vibration or take vibration reduction measures.

(3) The sealing machine thermal electrode will not be broken, treatment method repair or replace the thermocouple.

(4) There is external interference (AC leakage, electromagnetic field induction, etc.), processing method to find the interference source, using shielding measures.

Sealing machine can not seal the mouth is what happened? The official website of Wuhan Lv Gong Machinery points out that if your sealing machine equipment is like three points of failure, you can carry out targeted maintenance according to the failure. If you can't find the fault, you can find the original manufacturer to send professional maintenance personnel for maintenance.