Glue control is the biggest drawback of manual dispensing machine. Under the condition of insufficient glue control, the docking is not strong enough, and it is easy to drop or disconnect when used. Otherwise, if the amount of glue control is too much, it will make the docking difficult and affect the integrity and beauty of the object. Air pressure automatic dispensing machine is provided by a unique configuration of the air compressor, the internal circulation of air pressure extrusion glue with different parameters and operation box change at any time, the operator can change the relevant parameters at any time, adjust and use more convenient and more efficient, this is controlled manually glue dispensing machine does not have the advantage. The product is practical automatic dispensing after part of the package is very high, small objects alternately fast and high working efficiency, can play a certain role in dust and moisture, and can withstand the impact and does not affect the normal working performance, high repetitive work not prone to errors, reflects the strong function and automatic dispensing machine competitive advantage. The automatic dispensing machine is higher than the manual dispensing machine at the selling price, but the high quality mass production can create greater work value for the manufacturer, and the fast return cost is also an advantage of it.