Patent ID: 6394161
Filing Date: 2002-05-28
Classification: B05B,B05C,H05K,Y10T

Abstract:
An adhesive applying apparatus comprising:a support unit for supporting a circuit board; an adhesive applying nozzle for applying adhesive on an upper surface of the circuit board; an elevation drive unit connected to said adhesive applying nozzle for moving said adhesive applying nozzle in a vertical direction toward and away from a lowermost position, wherein said elevation drive unit can be selectively controlled in order to adjust the lowermost position of said adhesive applying nozzle; a purging station having an upper surface for receiving a purging tape; a transverse drive unit for moving said adhesive applying nozzle, relative to said support unit and said purging station, in a direction which is perpendicular to the vertical direction so as to position said adhesive applying nozzle relative to said support unit and said purging station; a control means operably connected to said elevation drive unit, wherein said control means controls said elevation drive unit via a command in order to set the lowermost positions of said adhesive applying nozzle at said support unit and at said purging station, respectively; and a purging station elevation unit which includes a motor, and a threaded shaft connected to said motor and to said purging station, wherein said motor is operable to rotate said threaded shaft in response to a command from said control means and based on the height of the upper surface of said circuit board to effect vertical movement of said purging station.