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.
Claims17
An apparatus for the spray treatment of printed circuit boards in the course of the printed circuit board (PBC) production having means of conveyance (6) for conveying the PCBs (2) with a horizontally oriented PCB surface plane, also a nozzle device (16) disposed above the plane of conveyance (7) of the PCBs (2) for spraying the top surface (13) of the PCBs (2) with a liquid treatment medium stored in a reservoir (23), and a suction device (26) for suctioning off the sprayed-on treatment medium from the top surface of the PCBs (2) during the spray process, characterized by a circulation cycle (46) 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 the suction side of which the negative pressure is tapped off that is required for the suction operation.
Dependencies are inferred from the claim text.