Common troubleshooting methods for food packaging machines

A food packaging machine is a machine that can complete all or part of the product and food packaging process. The packaging process includes filling, wrapping, sealing and other main processes, as well as related pre- and post-processes such as cleaning, stacking and dismantling. In addition, packaging also includes metering or stamping on the package. Using mechanical packaging products can improve productivity, reduce labor intensity, meet the needs of large-scale production, and meet the requirements of cleanliness and hygiene.

I. What are the reasons for the slow heating or inability of the shrink machine to reach a higher temperature (above 160 degrees Celsius)?

The circuit of the heater is that the main power line passes through a magnetic switch and then to the heating tube, so the magnetic switch contacts should be checked first to see if they are normal. If the circuit does not pass through one of the phases, the above phenomenon will occur. If the magnetic switch is normal, the meter can be checked to see if the ohm values of each phase are the same as the machine. If it is normal, it should be a short circuit. If all phases are connected but the circuit or heating tube is still abnormal, the heater needs to be replaced.

II. How to adjust the film material offset and unable to feed normally during operation?

If the film material is offset in the equipment, and the adjustment of the film roll position and tension balance rod is invalid, this problem can be solved by adjusting the angle of the upper triangle plate. If the upper film material deviates from the clamping chain, the upper triangle plate can be adjusted clockwise; if the lower film material deviates from the clamping chain, the upper triangle plate can be adjusted counterclockwise.

Common troubleshooting methods and steps for vacuum packaging machines:

1: Pump oil pollution, too little or too thin Clean the vacuum pump and replace the new vacuum pump oil;

2. The pumping time is too short Extend the pumping time; The pumping filter is blocked Clean or replace the exhaust filter;

3. There is a leak, turn off the power after evacuation, and check whether there is any leakage in the solenoid valve, pipe joints, vacuum pump suction valve and the surrounding sealing gasket of the working chamber.

Food packaging machine

4. The O-ring of the suction valve falls off Pull out the vacuum tube on the pump nozzle, remove the pumping nozzle, take out the pressure spring and suction valve, gently stretch the O-ring several times, re-embed it in the groove, and then install it; replace the vane if the vane is worn.

5. Return oil valve blockage Remove the return oil valve and clean it (see manual); loose oil window After draining the oil, remove the oil window and wrap it with raw material tape or thin plastic film.

6. Exhaust filter is blocked or contaminated Clean or replace the exhaust filter; pump oil contamination Replace new oil; return oil valve blockage Clean the return oil valve

7. Heating strip is burnt out Replace the heating strip; heating time relay is burnt out, replace the time relay; heating wire is burnt out Replace the heating wire and install it firmly; the contact of the heating temperature band switch is poor, repair or replace; the AC contactor controlling heating does not reset Repair (use airflow to blow away foreign objects) or replace; heating transformer is bad Replace

8. The heating time relay is poor or burnt out, adjust the contact between the time relay and the socket or replace it; the AC contactor controlling heating does not reset Repair or replace

9. The heating time and heating temperature are not well adjusted Adjust to the appropriate level; there are attachments on the heating cloth Gently scrape off the attachments with your fingernails; the pressurizing solenoid valve does not work Clean or replace the solenoid valve; the airbag is damaged Replace the airbag; the pressurizing air pipe is damaged Repair or replace; no exhaust The cooling time relay is bad (in the electrical box) Replace the time relay; the exhaust valve circuit is open Find and connect; the exhaust valve is stuck or burnt out Remove and clean or replace