Brief introduction to blow molding machine

Blowing machine is a blow-molding process by the plastic granules produced hollow container forming apparatus , now more common, there are two , one is the use of PP and PE a hollow extrusion blow molding machine , and the other is the use of PET , PC or PP two-step injection stretch blow molding machine with two moldings. The two-step bottle blowing machine is widely used in any shape of carbonated beverage bottles, mineral water bottles, cosmetic bottles, edible oil bottles, pesticide bottles, large-caliber bottles, high-temperature bottles and other packaging containers made of crystalline plastics such as PET and PP as raw materials.

Two-step blow molding machine has two steps in production

1. Warm up:The preform by irradiation of infrared heat lamp , the body portion of the preform is heated and softened , in order to maintain the shape of bottle , the preform is heated in port is not required , and therefore be subjected to the cooling means the cooling operation.

2. Blow molding:In this stage, the preheated preform is placed in the ready-made bottle blowing mold, and the stretching rod is stretched out for high-pressure inflation , and the preform is blown and stretched into the required bottle shape.

As the name implies, the automatic blow molding machine is that the production process is fully automated, without manual operation , and the output has different models with 2000-8000 bottles per hour .