Blow moulding machine introduction:
Blow moulding machine, also known as extrusion blow molding machine. Which is a machine of technology after the liquid plastic spray out, making the use of machine wind blowing, blowing the plastic body to a certain shape of cavity, then to make product, this kind of machine is also called as blowing plastic machine. Plastic in the screw extruder is melted and quantitative extrusion, and then through mould mouth molding, and then air cooling, and then have a traction at a certain speed, winding machine winding it into a roll.
Extrusion blow moulding machine, also known as hollow blow molding, is a rapid development of plastic processing methods. Thermoplastic resin extruded or injection-molded tubular plastic parison, by hot, placed in the opened mold, when the mold close, immediately introduction of compressed air in the parison, making the plastic parison inflated and close to the mold wall.
Then cooling and demoulding, get a variety of hollow products. During the World War II blow molding process began to be used to produce low-density polyethylene vials. The late 50’s, with the birth of high-density polyethylene and the development of blow molding machines, blow molding technology has been widely used. Hollow container volume up to thousands of liters, and some production has been using computer control.
Suitable for blow molding producing plastic type has: polyethylene, polyvinyl chloride, polypropylene, polyester, the resulting hollow containers are widely used as industrial packaging containers. According to parison production methods, blow molding can be divided into extrusion blow molding and injection blow molding, the newly developed multi-layer blow molding and stretch blow molding.
GANG MU extrusion blow moulding machine energy saving can be divided into two parts: one is driving power part, one is heating part.
Driving power part energy-saving: mostly by adopting inverter, energy-saving method is by saving motor energy consumption, for example, the actual power of the motor is 50Hz, and in production actually need only 30Hz is enough, and those extra energy consumption in vain wasted, while the inverter function is to change the power output of the motor to save energy.
Heating part energy-saving: mostly heating part energy-saving by using of electromagnetic heaters, energy-saving rate about 30% -70% of the old resistance ring.
Extrusion blow moulding machine electromagnetic heating advantages:
1. Compared to the resistance heating, electromagnetic heater has a more layer of insulation, heat utilization increased.
2. Compared to the resistance heating, electromagnetic heaters directly affect the tube heating, reducing heat transfer loss of heat.
3. Compared to the resistance heating, electromagnetic heater heating speed a quarter faster, reducing the heating time.
4. Compared to the resistance heating, electromagnetic heater heating speed, production efficiency is increased, so that the motor is in saturation, so that it reduces the power loss caused by high power and low demand.