What an what is thr function of an extruder in blow molding?

An extruder in blow molding is a machine that melts and shapes plastic material into a continuous tube or parison, which is then inflated to form hollow objects. The extruder feeds the raw plastic pellets into a heated chamber, where they are melted and forced through a die to create the desired shape. This process is crucial for producing items like bottles and containers, as it ensures a uniform thickness and consistency in the final product.