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What are the common faults of vacuum packaging machine?

Writer: admin Time:2021-06-28 Browse:156℃

  Modern vacuum packaging automatic operation, just press the vacuum cap that automatically according to the program to complete the vacuum, sealing, printing, cooling, exhaust process. After packaging, the product can be protected from oxidation, mildew, moth, damp, quality and preservation, and the storage period of the product can be extended. In the process of using the vacuum packaging machine, it is inevitable to encounter some fault problems, as long as the cause is found and solved in time. According to the actual records, the main problems are as follows: 1. Low vacuum; 2. High noise; 3. Vacuum pump oil injection; 4. Vacuum pump oil leakage; 5. Large vacuum pump oil fume; 6. No heating; 7. Heating does not stop; 8. Uneven seal Loose or unsealed steel box deformation adjustment steel box 9. Heating at one side, not heating at the same time 10. Pump does not vacuum 11. Cover does not work, etc

  1. Clean the vacuum pump when the pump oil is polluted, too little or too thin, and replace it with a new one; The pumping time is too short to extend the pumping time; The exhaust filter is blocked, and the exhaust filter is cleaned or replaced; If there is air leakage, turn off the power after evacuation, and check whether there is air leakage in solenoid valve, pipe joint, suction valve of vacuum pump and sealing gasket around the working room.

  2. The coupling of vacuum pump is worn or broken, and it shall be replaced; If the exhaust filter is blocked or the installation position is not correct, clean or replace the exhaust filter and install it correctly; If there is air leakage, check the solenoid valve for air leakage and eliminate it.

vacuum packaging machine

  3. When the O-ring of suction valve falls off, pull out the vacuum pipe on the pump nozzle, remove the suction nozzle, take out the pressure spring and suction valve, gently stretch the O-ring several times, insert it into the groove again, and then install it; If the rotary vane is worn, replace the rotary vane.

  4. The oil return valve is blocked. Remove the oil return valve and clean it (see the manual for details); When the oil window is loose and the oil is drained, remove the oil window and wrap it with raw tape or thin plastic film.

  5. The exhaust filter is blocked or polluted, and the exhaust filter is cleaned or replaced; Replace the pump oil with new one if the pump oil is polluted; The oil return valve is blocked and cleaned.

  6. The heating strip is burnt out and replaced; The heating time relay is burnt out (the two lights are on at the same time when the machine is started, and the color of OMRON light is yellow). Replace the time relay; If the heating line is burnt out, replace it and install it firmly; Poor contact of control heating temperature band switch, repair or replace; The AC contactor that controls heating does not reset, repair (blow out foreign matters with air flow) or replace; Replacement of heating transformer in case of failure

  7. If the heating time relay is in poor contact or burnt out, adjust the time relay to contact with the socket or replace it; Repair or replace the control heating AC contactor without reset

  8. The heating time and temperature are not adjusted properly; If there are attachments on the heating cloth, gently scrape them off with your nails; The pressurization solenoid valve does not work, clean or replace the solenoid valve; If the air bag is damaged, replace the air bag; Repair or replace the damaged pressurized air pipe; If the cooling time relay without venting is broken (in the electrical box), replace the time relay; Find and connect the circuit of vent valve with open circuit; The air release valve is stuck or burnt out, and is removed for cleaning or replacement

  9. If there is a short circuit between the packing bag pressing strip on the non heating side and the heating device (generally short circuit with the brazing pad), adjust the position of the brazing pad, or straighten the packing bag pressing strip

  10. If the studio is not tightly covered, the studio will be tightly covered; Reverse the motor (pay attention not to change the ground wire, the colored wire is the ground wire); If the fuse is broken (the indicator light is on), replace the fuse with the same specification

  11. If there is no power supply, check whether there is power supply; The stroke switch does not act, adjust the stroke switch paddle; If the fuse is broken (the indicator light is on), replace the fuse of the same specification, frequently burn the fuse, and find out and eliminate the short circuit; If the reversal time of the motor is too long, any two-phase power line shall be replaced and installed (except the ground wire); If the oil viscosity is too high, wash the pump and change the oil. Repair the short circuit of the paddle in the fuse box.


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