Common problems and solutions for vacuum packing machine

In the process of using the vacuum packaging machine, there are some common problems and solutions.
1. Low vacuum degree. If the pump oil is polluted, too little or too thin, clean the vacuum pump and replace it with new vacuum pump oil; if the pumping time is too short, prolong the pumping time; if the pumping filter is blocked, clean it or replace the exhaust filter; if there is air leakage, turn it off after evacuation Power supply, check the solenoid valve, pipe joint, vacuum pump suction valve and the sealing gasket around the studio for air leakage.
2. High noise. If the vacuum pump coupling is worn or broken and replaced; if the exhaust filter is blocked or the installation position is not correct, clean or replace the exhaust filter and install it correctly; where there is air leakage, check the solenoid valve for air leakage and remove it.
3. Vacuum pump fuel injection. If the O-ring of the suction valve falls off, pull out the vacuum tube on the pump nozzle, remove the suction nozzle, take out the compression spring and the suction valve, gently stretch the O-ring several times, re-insert it into the groove, and then It can be installed; if the rotary vane is worn out, replace the rotary vane.
4. Vacuum pump oil leakage. The oil return valve is blocked. Remove the oil return valve and clean it (see the manual for details). The oil window is loose. After draining the oil, remove the oil window and wrap it with raw material tape or thin plastic film.
5. Vacuum pump oil fume. If the suction filter is blocked or polluted, clean or replace the exhaust filter; if the pump oil is polluted, replace it with new oil; if the oil return valve is blocked, clean the oil return valve.
6. No heating. If the heating strip is burned out, replace the heating strip; if the heating time relay is burned out (the two lights are on at the same time when the power is turned on, and the color of the OMRON light is yellow), replace the time relay; if the heating wire is burned out, replace the heating wire and install it firmly; control the heating temperature band The switch is in poor contact, repair or replace; the AC contactor that controls the heating does not reset and repair (blow off foreign objects with airflow) or replace; the heating transformer is broken and replaced
7. No heating Stop. If the heating time relay is in poor contact or burned out, adjust the time relay to contact or replace the socket; control the heating AC contactor not to reset, repair or replace.
8. Uneven, tight, or unsealed steel box is deformed and adjusted to adjust the steel box. The heating time and heating temperature are not adjusted properly; there are attachments on the heating cloth, gently scrape the attachments with a fingernail; the pressure solenoid valve does not move to clean or replace the solenoid valve; the airbag is damaged and the airbag is replaced; the pressurized trachea is damaged Repair or replace; the cooling time relay is broken without air release (in the electrical box) Replace the time relay; the air release valve circuit is broken and found and connected; the air release valve is stuck or burned out, remove it for cleaning or replace it.
9. While heating, not heating. do not heat the side of the packaging bag layering and heating device short circuit (generally short circuit with the brazing piece) adjust the position of the brazing piece or rest the bag layering.
10. Pump rotates without vacuuming. the studio is not covered tightly and will cover the studio; Motor reversal (pay attention not to change the ground wire, the pattern line is the ground wire); Insurance broken (indicator light) replace the same specification insurance.
11. Closing lid does not work. Check whether there is a power supply without power supply; The travel switch is not operated to adjust the travel switch paddles; Insurance is broken (indicator light) replace the same specifications of insurance frequent burning insurance short circuits to find and exclude; Motor reversal time is too long any two-phase power line replacement installation (except ground wire); Oil viscosity is too high to clean the pump and change the oil safety box inside the pick has a short circuit repair.

Maintenance
1. The vacuum packaging machine should be used in an environment where the temperature is -10℃-50℃, the relative humidity is not more than 85%, and there is no corrosive gas in the surrounding air, no dust, and no explosive danger. Like balers and shrinkers, the vacuum packaging machine is powered by a three-phase 380V.
2. To ensure the normal operation of the vacuum pump for the vacuum packaging machine, the vacuum pump motor is not allowed to reverse. The oil level should be checked frequently. The normal oil level is 1/2-3/4 of the oil window (can not exceed). When there is moisture in the vacuum pump or the oil color turns black, new oil should be replaced at this time (usually working continuously for one or two times) Replace it once a month, use 1# vacuum gasoline or 30# gasoline, oil can also be used).
3. The impurity filter should be disassembled and washed frequently (usually once every 1-2 months, such as packaging debris-like objects, the cleaning time should be shortened).
4. After working continuously for 2-3 months, the back cover 30 should be opened to add lubricating oil to the sliding parts and switch bumps, and the connecting activities on the heating rod should be lubricated according to the usage.
5. Regularly check the triple parts 24 of decompression, filtration, and oil mist to ensure that there is oil (sewing machine oil) in the oil mist and oil cup and that there is no water in the filter cup.
6. The heating strip and the silicone strip should be kept clean, and no foreign matter should be stuck, so as not to affect the sealing quality.
7. On the heating rod, the second layer of the paste under the heating sheet plays an insulating role. When it is damaged, it should be replaced in time to avoid short circuits.
8. The working air source and inflation air source are provided by the user. The working pressure of the vacuum packaging machine has been set to 0.3MPa, which is more appropriate. Do not adjust it too much unless there are special circumstances.
9. The vacuum packaging machine is not allowed to be tilted and impacted during the handling process, and it is not allowed to be tipped for handling.
10. The vacuum packaging machine must have a reliable grounding device during installation.
11. It is strictly forbidden to put your hand under the heating rod to prevent injury. In case of an emergency, cut off the power immediately.
12. When working, first ventilate and then power on, when shutting down, first power off and then cut off the gas.

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