An airstream propelled spray atomizer apparatus and method of fluid atomization by codirectional airstream propulsion enables controllable atomization of a second fluid into a first fluid for use in surface treatment and cleaning. A user is able to alter the amount of atomization of the second fluid, from a spray to a mist, during spray operations without having to stop and change nozzles. Further, effectuating atomization via in-stream introduction rather than via structural impediments disposed interior to the nozzle prolongs nozzle life over extended operations.

A spray gun includes first and second air outlet channel arrangements. At least one parameter, in particular pressure, volume flow and/or flow speed of air flowing through the first arrangement and at least one parameter, in particular pressure, volume flow and/or flow speed of air flowing through the second arrangement can be controlled independently of one another in an open and/or closed loop manner. The spray gun also includes a third air outlet channel arrangement and at least one parameter, in particular pressure, volume flow and/or flow speed of air flowing through the third arrangement can be controlled in an open and/or closed loop manner independently of at least one parameter of the first arrangement, and/or independently of at least one parameter of the second arrangement. Thus, three different types of air (atomisation, shaping, and transporting) can each be controlled independently providing increased flexibility in use for different painting tasks.

The invention relates to a pneumatic device (10) comprising modules (100), each module having compressed air supply valves (12), the intensity of the compressed air jet supplied by each module (100) being variable according to the combination of valves (12) activated, and outlet nozzles (14) of one or more air jets coming from the modules (100), according to the number of modules (100) activated, the nozzles having aligned outlet orifices. The invention also relates to an object sorting system comprising the pneumatic device.

Disclosed is a hub paint spraying equipment equipped with a spraying robot having a combined spray gun, comprising a control system, a wheel type recognition system, a brace recognition system, a paint supply device, a quick color changing device, spraying robot, combined spray gun, a cleaning system, a conveying chain and an accessory device. Combined spray gun installed at the end of spraying robot of system is formed by assembling a plurality of spray gun individuals, spraying process and parameter are automatically called by automatic recognition of wheel type recognition system, category of a colored paint is automatically changed, spraying parameter and robot spraying path program are called, and mixed-line intelligent spraying of a hub is realized, so that problems of low utilization rate of equipment due to consumption of a lot of time for replacing colored paint and excessive in-process caused by classification and temporary storage stacking are avoided.

Disclosed is a hub paint spraying equipment equipped with a spraying robot having a combined spray gun, comprising a control system, a wheel type recognition system, a brace recognition system, a paint supply device, a quick color changing device, spraying robot, combined spray gun, a cleaning system, a conveying chain and an accessory device. Combined spray gun installed at the end of spraying robot of system is formed by assembling a plurality of spray gun individuals, spraying process and parameter are automatically called by automatic recognition of wheel type recognition system, category of a colored paint is automatically changed, spraying parameter and robot spraying path program are called, and mixed-line intelligent spraying of a hub is realized, so that problems of low utilization rate of equipment due to consumption of a lot of time for replacing colored paint and excessive in-process caused by classification and temporary storage stacking are avoided.