(57) Spray gun for electrostatic spray coating of objects, namely for a powder coating
material, comprising a gun barrel (1) including a high voltage generator, topped in
a replaceable nozzle (2), and a grip or support member (10, 11), a duct (14) for the
coating material circulation, extending along said barrel and grip or support, and
electrodes (17) connected to said high voltage generator and interposed to the passage
of the product to spray.
According to the invention the spray gun is composed of a tubular element (6), acting
as support of the barrel body (1), said element (6) being laterally extended by a
portion (7) continued by a grip (10) or a supporting member (11) fastened to an automatic
handler member, and said element (6) receiving, tightly inserted, a rear part (5)
of the barrel (1), of smaller section, lengthwise delimited by a step (18) and topped
by an end configuration (19) adapted to fasten a detachable part (8) which keeps linked
the two bodies support (6) and barrel (1). The tubular support section comprises some
passages to insert therethrough some ducts (16, 46) to supply powder and fluid and
electrical current.
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