1: first, make the mold for processing the egg packaging box: according to the requirements or sample specifications, first, make the egg tray suction mold. Under normal conditions, gypsum is used to make the suction packaging mold, but wood carving and metal carving products are also used as the mold. After making the gypsum mold, let it dry completely or dry it naturally. Then, according to the specific conditions of the product surface, Use1-2mm drill to drill many small holes in the low recess that does not affect the packaging appearance of the product. If it is a packaging box or the like, it is necessary to drill some small holes around it, so that air can be pumped out during plastic absorption production. After the holes are drilled in the mold, it is necessary to harden the gypsum mold. The hardening treatment method is to soak it in concentrated alum saturated solution and dry it.

2: After the egg packaging box mold is completely dried, put the egg supporting mold on the upper iron plate of the vacuum chamber, then load the plastic sheet into the appropriate size according to the size of the egg supporting mold, then put the sheet into a heated wooden cabinet to completely fix it, and then put the wooden cabinet and the plastic sheet on a constant temperature furnace for softening treatment.

3. Put the softened plastic sheet together with the wooden cabinet in the vacuum chamber, start the air suction switch, and suck the air in the vacuum chamber clean. After the plastic sheet is cooled, the concave egg tray which is the same as the mold is obtained.

4: egg packaging box finishing; After trimming the produced egg tray, it is the finished egg packaging box, and then it is packaged and delivered in a carton.