LIQUID PAINT MATERIAL INTO SPRAY GUN FEEDING DEVICE AND TOOL FOR THE SIMILAR DEVICE INSTALLATION/DISMANTLING Russian patent published in 2018 - IPC B05B12/14 F16K31/122 

FIELD: technological processes.

SUBSTANCE: invention relates to the liquid paint material supply device to the paint spray gun, in particular in the coating application plant used for the primer coating, paint or varnish application onto the vehicle body. Liquid paint material supply device into at least one spray gun comprises at least one paint material flow towards the spray gun control valve. Said valve comprises movable needle, valve body forming the paint material circulation volume and having seat for the needle pressing in the valve closed position, and pneumatic actuating means intended for the needle movement along the extraction/approach axis relative to the seat and comprising a piston longitudinally attached to the needle and movably mounted in the valve body. Valve also includes mounted in the valve body head and forming, together with the valve body and the valve surface, a variable-volume chamber, in which the elastic return member is arranged, intended to return the piston to its initial position. Head and the guide body are pivotally mounted with the help of textured elements located on the head and on the guide housing, respectively, and made in the form of slots located on the guide body one of the edges opposite to the needle, opposite to one of the head sides, and located on the head outer radial surface protruding elements, opposite the guide body, and entering into the gaps formed between the grooves. Device mounting/dismounting tool comprises tip provided with textured elements, complementary in shape to the head actuated textured elements, as well as guiding handle.

EFFECT: increase in reliability, durability, serviceability, and enabling the possibility of manipulation during the valves mounting/dismantling process.

13 cl, 22 dwg