Illinois Tool Works Inc.
DISPENSING UNIT HAVING FIXED FLEXIBLE DIAPHRAGM SEAL

Abstract:

A dispensing unit of a dispensing system configured to dispense viscous material on an electronic substrate includes a support housing and a fluidic housing supported by the support housing. The fluidic housing includes a chamber and an inlet configured to deliver viscous material to the chamber from a material feed tube. The dispensing unit further includes a nozzle assembly releasably secured to the housing and configured to close an end of the fluidic housing. The dispensing unit further includes a reciprocating piston disposed partially within the chamber of the fluidic housing. The piston is configured to dispense viscous material from the nozzle assembly. The dispensing unit further includes a fixed flexible diaphragm seal configured to be secured to the fluidic housing and to the piston.