Automatic blow molding machine in short is the automation of intelligent blow molding machine equipment, at present the main linear two-step blow molding machine, the entire blow molding process is divided into preheating and blow molding, detailed working principle is as follows:
1, the entire preform transmission
Automatic loading machine preform loading to the grabbing clip position, grabbing clip preforms to go down, through the conveyor chain to enter into the heating oven.
2.Pre-heating
The preforms enter the infrared lamp oven through the conveyor chain for heating. Infrared oven has two rows of horizontal red line lamps, the temperature of each lamp can be adjusted by micro-controller PLC, the upper and lower red line of the lamps to stabilize the constant temperature but not the same high and low. Bottom of the bottle blank mouth in order to ensure that the size of the bottle caliber remains unchanged, generally not heated, and because of the high temperature in the environment, through the dispersion of the chiller tube for cooling. The temperature from the middle of the bottle blank to the bottom of the bottle is all thermostatically controlled, due to the evaporation of heat upwards, the temperature at the bottom of the bottle is relatively low, otherwise it is easy to cause the bottom of the bottle is too thin, resulting in the rupture of the bottom of the bottle.
3, blowing into bottles
Heated preforms, into the molding machine, blowing bottles. Hot preforms into the mold into the mold, the preform sealing treatment, with pre-blowing gas, the bottom of the stretching rod upward stretching preforms, pre-blowing gas to a certain extent, low-pressure blowing, while high-pressure into the blowing, in a very short period of time the bottle instantly once the type of molding to complete the blowing bottle. In the pre-blowing gas before the general will be equipped with a cold dryer, the gas through the filter, the moisture in the air and equipment lubrication in the oil filtered to the gas is clean, molded bottles without oil flavor. In addition, hot bottle blanks in the molding machine, in order to increase the heat of the mold and the temperature of the mold, the bottle and equipment are affected, through the chiller will ensure that the temperature of the mold quickly drop, to ensure the quality of the bottle and yield.
4, the recovery of excess gas
Blowing in the high-pressure and low-pressure gas in the bottle after a blowing experience, the gas out of the waste of energy caused by the increase in energy consumption, through the placement of the recovery of gas device, will be pre-blowing gas and blowing gas through the check valve into the storage tank, you can save 25% of the energy consumption.
pet blowing machine blowing bottle worker flow chart:
pet automatic blowing machine selection principles:
1, according to their own product selection. Bottle radius, capacity, capacity and other different specifications, choose a different model, the number of mold cavities of the blowing machine
2, the manufacturer's reputation. Domestic manufacturers of bottle blowing machine technology varies, recommended to choose which have the ability to design and continuous research and development capabilities of manufacturers as well as with perfect after-sales service.
3, choose a cost-effective blowing machine. Choose TengYue blowing machine, reasonable price, stable performance.