Blow molding machine refers to a machine for blowing bottles. The simplest explanation is a machine that can blow plastic particles (softened into liquid) or finished bottle embryos into bottles through certain technological means. The bottle blowing machine is convenient and fast, with a large amount of molding. After its emergence, it replaced most manual bottle blowing and was adopted by most beverage enterprises.
Some bottle blowing machines are still two-step bottle blowing machines, that is, plastic raw materials must be made into bottle embryos before blowing. Nowadays, environmental protection plastics made of PET are commonly used. Blow molding machine: after the liquid plastic is sprayed out, the plastic body is blown and attached to the mold cavity of a certain shape by using the wind force blown out by the machine, so as to make the product. This kind of machine is called blow molding machine. It is also a kind of bottle blowing machine, namely hydraulic bottle blowing machine.
The tubular plastic parison obtained by extrusion or injection molding of thermoplastic resin is placed in the split mold while it is hot (or heated to a softened state). After the mold is closed, compressed air is immediately introduced into the parison to make the plastic parison expand and cling to the inner wall of the mold. After cooling and demoulding, various hollow products are obtained.
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