Exteriorly mounted and positionable spray coating nozzle assembly

A spray nozzle assembly for spray coating of workpieces in a cabinet, comprising

• a spray nozzle through which a coating material is sprayed,
• a nozzle support adapted to be mounted externally of the cabinet, said support being movable to position said spray nozzle with respect to the workpieces to be coated,
• means for mounting said spray nozzle to said nozzle support for permitting said nozzle to be moved relative to said nozzle support in and out of the cabinet through an opening in the wall of the cabinet, and
• means for mounting said nozzle for movement independent of the movement of said nozzle support and of the in and out movement of said spray nozzle, said nozzle mounting means being manipulatable from the outside of the cabinet,
• said nozzle assembly thereby having three degrees of freedom for positioning and aiming said nozzle from outside of the cabinet for coating of the workpieces.

A spray nozzle assembly for spray coating of workpieces in a cabinet where workpieces are conveyed along a path past at least one spray nozzle to be spray coated with a fluid coating material, comprising

• a spray nozzle through which a coating material is sprayed,
• a spray nozzle support adapted to be mounted exteriorly of the cabinet, said spray nozzle support being pivotal to swing said spray nozzle through an arc to position said spray nozzle with respect to the workpieces to be coated,
• a pair of bearing blocks attached to said spray nozzle support, a tube for conveying coating material, said tube being supported by said bearing blocks and being slidable therein, said tube having a first open end adapted to be connected to a source of coating material and a second open end,
• a nozzle block mounted to said second open end of said tube in fluid flow communication therewith for conveying coating material from said tube to said nozzle, said nozzle block being pivotal on an axis generally perpendicular to the long axis of said tube without interrupting the flow of coating material from said tube to said nozzle,
• said spray nozzle being movable along an axis generally perpendicular to the spray nozzle support pivot axis in and out of said cabinet through an opening in the wall of the cabinet by sliding said tube in said bearing blocks to thereby position said nozzle a predetermined distance from the surface of the workpiece to be coated,
• means for pivoting said nozzle block from outside of said cabinet to aim said nozzle at the workpiece to be coated, and
• flexible sleeve means adapted to be attached at one end to the cabinet about the periphery of the opening in the cabinet wall and at the other end to a mount movable with said nozzle for sealing the cabinet from escape of coating material while permitting the swinging movement of said spray nozzle support and the in and out movement of the nozzle.

Apparatus for spray coating workpieces with a coating material, comprising:

• a cabinet having an open interior adapted to receive the workpieces therein;
• a spray nozzle through which the coating material is sprayed;
• nozzle support means for supporting said spray nozzle, said nozzle support means being mounted exteriorly of said cabinet and being movable relative to said cabinet to position said spray nozzle with respect to the workpieces;
• and
• nozzle positioning means mounted to said nozzle support means for positioning said spray nozzle relative to said nozzle support means, said nozzle positioning means being operable to position said spray nozzle with respect to the workpieces independently of said nozzle support means.