JPS6328150U - - Google Patents

Description

[Brief explanation of drawings]

The accompanying drawing is a partially cutaway side view showing a preferred embodiment of the air atomizing electrostatic coating gun according to the present invention, with main parts cut away. In the figure, 1 is the gun body, 2 is the paint supply path, and 3 is the gun body.
is the front end opening of the nozzle, 4 is the paint nozzle, 5 is the atomizing air supply path, 6 is the central atomizing air hole, 7 is the atomizing air hole, 10 is the shaping air supply path, 11 is the shaping air hole,
13 is an air cap, 14 is a paint chamber of a paint nozzle, 15 is a valve seat, 16 is a substantially conical front end of a valve body, 1
7 is a valve-shaped valve body, 18 is a piston, 19, 20 are air passages, 21 is a cylinder front chamber, 22 is a cylinder rear chamber, 23 is an air cylinder part, 24 is a V-shaped packing, 25, 26, 27 are valve bodies Support members, 28 is the cylinder rear cover, 29 is the needle valve device, 30 is the spring connector, 31 is the paint particle charging electrode, 32 is the support arm of the gun body, 33 is the rear end portion of the paint nozzle, and 34 is the air cylinder portion. 35 is a cylindrical cavity of the gun body, 36 is a rear wall of the gun body, 37 is a high voltage cable, 38 is a rod-shaped resistor, 39 is a paint supply hose, and 40 is an atomizing air hose. Each is shown below.

Claims (1)

[Scope of utility model registration request] a gun body; a paint nozzle installed at the front end of the gun body and spraying liquid paint supplied through a paint supply passage provided through a wall of the gun body;
A central air hole for nozzle insertion, which is attached to the front end of the gun body and communicates with the atomizing air supply path provided through the wall of the gun body, and a plurality of air holes surrounding the central air hole. an air cap for atomizing the liquid paint injected from the paint nozzle; and a generally conical front end disposed inside the gun body and coming into contact with and away from a valve seat formed by an inclined inner wall of the paint nozzle; A needle valve device for controlling the ejection of liquid paint from the paint nozzle, comprising an elongated rod-shaped valve body, a valve body driving piston fixed to the rear end of the valve body, and an air cylinder portion housing the piston. and; a paint formed by an elongated linear conductor attached to the valve body of the needle valve device, the front end of which protrudes forward from the front end opening of the paint nozzle, and to which a high DC voltage is applied via a high resistance element. an air atomizing station comprising: a particle charging electrode; and means for controlling air supplied to the air cylinder section through an air passageway provided through the wall of the gun body for actuating the needle valve arrangement. In an electric paint gun, the front end of the air cylinder part of the needle valve device is extended forward into a cylindrical shape, and a paint nozzle is attached and fixed to this extension to form an integrated nozzle-needle valve assembly. and the nozzle-needle valve assembly is removably inserted from the front into a substantially cylindrical cavity provided in the front end portion of the gun body and opened toward the front, and the nozzle-needle valve assembly is fitted and fixed to the gun body. An air atomizing electrostatic painting gun featuring: