Forming Process
The glass bottle and jar forming process is a series of combinations of actions (mechanical, electronically controlled, etc.) that are repeated in a given programmed sequence with the goal of creating a bottle and jar with the desired specific shape. There are currently two main processes for the production of glass bottle and jar containers: the blow-blow method for narrow mouths and the press-blow method for the use of larger diameter bottles and jars.

In these two molding processes, the molten glass liquid, at its material temperature (1,050-1,200°C), is cut by shear blades to form cylindrical droplets of glass, called "droplets. The weight of the droplet is enough to produce a bottle. Both processes start with shearing of the glass liquor, where the droplet falls by gravity and passes through the feed chute and steering chute into the primary mold, which is then closed tightly and sealed by a "bung" at the top.

During the blowing process, the glass is firstly pushed down by the compressed air passing through the bung, which makes the glass at the mouth mold form; then the core moves down slightly, and the compressed air passing through the gap from the core position expands from bottom to top to squeeze the glass to fill the primary mold. By blowing the glass in this way, the glass will form a hollow prefabricated shape and be blown again by compressed air in the second stage in the subsequent process to get the final shape.

The production of glass bottles and jars takes place in two main stages: in the first stage all the details of the mouth mold are formed and the mouth of the completed bottle including the inner opening, but the body shape of this glass product will be much smaller than its final size. This semi-formed glass products are called blanks and in the next moment they will be blown into the final shape of the bottle and jar.

The production of glass bottles and jars takes place in two main stages: in the first stage all the details of the mouth mold are formed and the mouth of the completed bottle including the inner opening, but the body shape of this glass product will be much smaller than its final size. This semi-formed glass products are called blanks and in the next moment they will be blown into the final shape of the bottle and jar.
In terms of mechanical action, the mouth mold and the core form a confined space underneath. After the mouth mold is filled with glass (after the puffing is complete), the core is retracted slightly, so that the glass in contact with the core is slightly softened. Then compressed air from the bottom to the top (backward blowing air) passes through the gap under the core to form the mold blank. Then the muffle head rises, the initial mold opens and the flip arm, together with the mouth mold and the billet, flips to the molded side.

When the flip arm reaches the top of the die, the die on both sides closes and clamps, encasing the blank. The mouth mold will open slightly and release the blank; then the flip arm will return to the initial mold side and wait for the next round of action. The blowing head is lowered to the top of the forming die and compressed air is poured into the billet from the middle, squeezing the glass to expand toward the forming die to form the final bottle and jar shape.

In the press-blow process, the blanks are no longer formed with compressed air, but by squeezing the glass through a longer core in the confined space of the primary mold cavity. The subsequent turning and final molding is consistent with the blow-blow method. The bottles are then clamped out of the molding mold and placed on a stop plate with bottom-up cooling air, waiting to be transferred to the annealing process by dialing the bottles.