There are a lot of voltage multi axis automatic dispensing machine accessories, double acting back suction dispensing valve is a kind of complex dynamic characteristics, back suction dispensing, completely driven by pneumatic mode, in the use of double acting suction dispensing valve to voltage dispensing process, prevent glue brushing, or glue not broken, which voltage device and other devices adhesions caused irreversible error. The working principle of a voltage regulator is used, copper wire made copper coil, transformer, so as to achieve the purpose of transformer in transformer, at the same time, will produce a higher voltage and magnetic, this time on the need of multi axis automatic dispenser for dispensing the processing in the process of using double acting suction dispensing valve for dispensing. If the first cement resistance to glue adhesion, ensure cement resistance does not separate and so on, is for dispensing with the coil, and the coil will be thoroughly wrapped to prevent magnetic leakage. Double acting back suction dispensing valve in the glue point on the voltage gently suction, greatly inhibits the drawing, so the voltage for multi axis automatic dispensing machine for precision dispensing of voltage using double acting back suction dispensing valve is no problem, ensure the voltage for the perfect job.