Powder pump applied to powder spraying production line

Abstract

The invention discloses a powder pump applied to a powder spraying production line. The powder pump comprises a material hopper and further comprises a quick exhaust valve; the material hopper is provided with an air inlet and an air outlet which communicate with an inner cavity of the material hopper; the quick exhaust valve is provided with the air entering end, the air discharging end and the air exhausting end; the air entering end is used for being connected with an external air source; the air discharging end is connected with the air inlet; when an air flow is quickly input into the quick exhaust valve from the air entering end, the quick exhaust valve can make the air entering end communicate with the air discharging end and block the air exhausting end; and when an air flow is input into the quick exhaust valve from the air discharging end, the quick exhaust valve can make the air discharging end communicate with the air exhausting end and block the air entering end. The powder pump applied to the powder spraying production line is simple and reliable in structure and can effectively protect a control valve, prevent the control valve from being blocked and damaged and effectively lower the fault rate, and is convenient to use.

Description

technical field [0001] The invention relates to the field of powder coating, in particular to a powder pump used in a powder coating production line. Background technique [0002] The powder pump is an important equipment in the powder coating production line. It usually includes a hopper, an air inlet and an air outlet. The upper end of the hopper is connected to the silo, etc., and the air inlet is connected to the external high-pressure air source. The powder in the silo can fall into the hopper Inside, the high-pressure air source sprays high-speed gas into the hopper through the air inlet, and the gas passes through the hopper and is discharged from the air outlet. During this process, the powder in the hopper can be discharged from the air outlet with the air flow, thereby realizing the powder transportation . [0003] During use, the powder is easy to adhere to the inner wall of the powder pump and the air inlet and outlet. When other types of powder need to be repla...

AI Technical Summary

Problems solved by technology

[0003] During use, the powder is easy to adhere to the inner wall of the powder pump and the air inlet and outlet. When other types of powder need to be replaced, the powder pump needs to be cleaned to avoid the influence of the previously used powder mixed into the later used powder. Product quality, the disassembly and assembly of the powder pump is relatively inconvenient. At present, the cleaning of the powder pump is usually carried out by feeding compressed air into the air outlet. In the process of cleaning with compressed air from the air outlet, the airflow is easy to bring the powder to the air outlet. The air inlet then enters the solenoid valve and other control valves at the air inlet. These control valves are used to control the flow rate and on-off of the high-speed air delivered from the external high-pressure air source to the air inlet. Powder entering the control valve will easily cause the control valve to malfunction. , affecting the service life of the control valve

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