Apparatus for applying flux
AssigneePrecision Dispensing Equipment, Inc.
InventorsBradley N. Stoops, Melaney S. Stoops
Life of this patent
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Abstract
A dispensing apparatus for applying a thin stream of flux to a surface of a printed circuit board. The dispensing head travels at a high rate of speed relative to the board during the dispensing of flux to apply thin layers of flux thereto. Preferably, the dispensing head moves transversely to the work path of a conveyor that transports the board through a flux station, at a rate of approximately 20 to 90 inches per second. Tips that dispense the flux are angularly disposed relative to the board and, if desired, make multiple passes over the surface to coat selected regions twice. Either the board is incrementally advanced through the flux station or the dispensing head is incrementally advanced relative to the board so that flux is applied when the board is stationary.
Claims19
A dispensing apparatus for applying flux to a surface such as a printed circuit board (PCB), the apparatus comprising:
- a dispensing head that applies a non-atomized stream of flux to form a layer of flux on the surface;
- means for advancing the dispensing head relative to the surface at a high rate of speed during the flux application;
- and
- the dispensing head being tilted relative to the surface for laying flux at an angle substantially less than orthogonal thereto to limit shadowing.
A flux dispensing apparatus for applying flux to a printed circuit board (PCB), the dispensing apparatus including:
- a dispensing head operatively associated with a supply of flux and located below and adjacent the travel path of the board for applying a non-atomized stream of flux at a high rate of speed to a bottom surface of the board thereon;
- and
- means for incrementally advancing the board relative to the dispensing head so that the flux is applied to a desired portion of the board when the board is stationary and then one of the board and dispensing head is advanced a predetermined distance to receive another application of flux to another desired portion of the board.
A dispensing apparatus for applying flux to a surface of a printed circuit board (PCB), the dispensing apparatus comprising:
- a dispensing head operatively associated with a supply of flux and the dispensing head being disposed below the board for laying a thin, stream of flux on an underside surface of the board at a speed on the order of 20 to 90 inches per second;
- and
- means for moving the dispensing head and surface relative to one another.
Dependencies are inferred from the claim text.