Coating spraying assembly based on track design and spraying process thereof

The invention relates to the technical field of paint spraying, in particular to a paint spraying assembly based on rail design and a spraying process thereof, the paint spraying assembly comprises a movable base, a storage box, an inner cavity drainage plate, a control telescopic rod, a side vertical plate, a guide rail, a sliding block in the rail, a spraying pipe and a spraying head; comprising the following spraying processes: step 1, spraying; 2, angle adjustment; 3, pressurizing in the cavity; the adjusting and controlling sliding block can drive the branch connecting pipe to move, adjustment is conducted according to the position of the spraying pipe, when the adjusting and controlling sliding block is close to the corner protection pad, the lower jacking spring can jack the sliding inner plate downwards, so that the connecting hose moves downwards in the portion, penetrating into the inserting pipe, of the connecting hose, the situation that the connecting hose is bent is avoided, and the service life