(57) Apparatus for supplying the product to be sprayed to spraying machines of the rotating
type, having guns mounted on a carousel or on a transfer device, in which the ends
of the pipes (4) supplying the spray guns (G) are connected to a header (3) provided
with a vertical supply tube (1) which is made to rotate by suitable means (2) in a
synchronised manner and in the same direction as the gun assembly of the said carousel
or transfer device and the top end of this supply tube (1) is connected to at least
one flexible pipe (14) which, after a short curved and upward trajectory (414), is
arranged horizontally with a middle section (314) rotatably supported by special means
(15) and which with the other end of the curved and downward section (214, 114) is
connected to a hollow and vertical hub (7) in turn connected to the delivery outlet
of a pump (9) of any suitable type, arranged vertically on a vertical support (8)
integral and coaxial with the said hub (7) which is made to rotate by special means
at the same speed as the said supply tube (1), but in the opposite direction, while
with its bottom axial draw-off the said pump (9) is immersed inside the container
of paint (10) which is fixed, all of which in such a way that the said flexible pipe
(14) rotates freely and without twisting about its longitudinal axis and is able to
supply the paint or other product to the guns of the spraying machine, without the
intervening arrangement of rotating joints and without the problems associated with
them.
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