1. According to the requirements or sample specifications, first make an egg tray blister mold. Under normal conditions, plaster is used to make a blister packaging mold, let it dry completely or dry naturally, and then according to the specific conditions of the product surface Drill many small holes in the low recesses that affect the appearance of the product packaging.
2. The next step is to dry the egg packaging box mold completely, load the egg tray mold into the upper iron plate of the vacuum chamber, and then load the plastic sheet into the applicable specifications according to the size of the egg tray mold, and then place the sheet Put it into the heated wooden cabinet to make it completely fixed, and then put the wooden cabinet together with the plastic sheet on a constant temperature furnace for softening treatment.
3. The third step is more critical. Put the softened plastic sheet together with the wooden cabinet in the vacuum chamber. Turn on the suction switch to suck the air in the vacuum chamber clean. After the plastic sheet cools, the mold will be obtained. The same concave egg tray. Then there is the sorting of the egg packaging boxes; after trimming and finishing the produced egg trays, the finished egg packaging boxes are then ready for sale at the factory.