Operation steps of the blow molding machine Step 1. Place the preform in the preform container and automatically enter the preform positioning device via the conveying device. Step 2. The preform is automatically loaded onto the preform holder and then sent to the drying tunnel. Step 3 After heating, the preform is sent to the blowing platform, and then the mold is clamped. The pressure is pulled by low pressure, drawn by high pressure, exhausted, and finally opened. Step 4 The bottle is taken from the blowing platform by an automatic demoulding system.