NONCONTACT JETTING SYSTEM FOR VISCOUS MATERIAL

摘要

PROBLEM TO BE SOLVED: To provide an improved and computer-controlled viscous fluid dispensing system.

SOLUTION: The noncontact jetting system for viscous material has a jetting dispenser mounted for relative motion with respect to a surface. A control part is operable to cause the jetting dispenser to jet a viscous material droplet that is applied to the surface as a viscous material dot. A device, such as a camera or weigh scale, is connected to the control part and provides a feedback signal representing a size-related physical characteristic of the dot applied to the surface. The size-related physical characteristics of subsequently applied dots is controlled by heating and cooling, or adjusting a piston stroke in the jetting dispenser in response to the size-related physical characteristic feedback. Dispensed material volume control and viscosity offset compensation are also provided.

COPYRIGHT: (C)2005,JPO&NCIPI