Analysis of PET Blow Molding Machine Internal Coating Technology
The working principle of the whole system of the automatic blow molding machine is relatively simple. Since only the stretching cylinder and the pre-blowing part need to be supplied, the installation structure is also very convenient. The relationship between supply and demand should be grasped when capacity bottle.
Although this system only provides recycled air to the two parts of stretching and pre-blowing, it seems a bit of a fly in the ointment, but its investment is small (taking SBO10/14 as an example, only about 20,000 yuan, depending on the price of accessories), and the return is large (years Cost savings of 160,000 to 200,000), strong independence (the original gas supply system can be used in case of failure or other reasons), high flexibility (simple and convenient installation), which is very in line with the basic principles of our technical transformation project, making the product more With market competitiveness.
When the bottle is turned on and idling without blowing, the low-pressure gas passes through the original pipeline solenoid valve to the gas storage pipe of the stretching cylinder, and the recovery gas storage pipe is isolated from the gas storage pipe of the stretching cylinder by a one-way valve, and there is no low-pressure gas in the recovery gas storage pipe. At this time, the entire stretching air system and pre-blowing system remain in the original state before modification.
Another inner coating technology uses an amorphous carbon coating machine on the inner wall of the bottle blowing machine, which is a device that uses carbon source gas to form plasma under microwave excitation to deposit an amorphous carbon film on the inner wall of the bottle. Its structure is controlled by a vacuum system, which can create a vacuum state in the cavity of the bottle blowing machine. The microwave generated by a microwave generating system acts on the bottle blowing machine, so that the carbon source gas generated in the cavity of the bottle blowing machine forms a plasma resonance cavity. The system can complete the injection of carbon source gas into the cavity of the bottle blowing machine by communicating with the carbon source gas injection system. The bottle blowing machine processed by this coating machine can effectively control the loss of gas in the bottle from the bottle wall, or the infiltration of gas outside the bottle from the bottle wall.