Apparatus for the spray treatment of printed circuit boards
AssigneePill e.K
InventorDietmar Seifert
Life of this patent
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Abstract
Proposed is an apparatus for the spray treatment of printed circuit boards. It has conveyor means for conveying the printed circuit boards (2) with a horizontally oriented PCB surface plane. Provided above the plane of conveyance (7) is a nozzle device (16) for spraying the top surface (13) of the printed circuit boards (2) with a liquid treatment medium. The apparatus is equipped with a suction device (26) that permits the sprayed-on treatment medium to be suctioned off from the top surface (13) of the printed circuit boards (2) during the spray process. In this manner the treatment medium is prevented from backing up, and a high-quality treatment process is ensured.
Claims20
An apparatus for the spray treatment of a printed circuit board in the course of production of the printed circuit board (PCB), comprising
- means of conveyance (6) for conveying the PCB (2) with a horizontally oriented PCB surface plane,
- a nozzle device (16) disposed above the plane of conveyance (7) of the PCB (2) for spraying a top surface (13) of the PCB (2) with a liquid treatment medium stored in a reservoir (23),
- a suction device (26) for suctioning off the sprayed-on treatment medium from the top surface of the PCB (2) during spray treatment,
- a circulation cycling system (46) for suctioned off treatment medium, said circulation cycling system (46) being equipped with a circulating pump (47) and containing an ejector device (45) that is supplied by the circulating pump (47) with treatment medium and on a suction side of said ejector device (45) of which negative pressure is tapped off that is required for the suction operation.
Dependencies are inferred from the claim text.