Inventors:
Ron Abernathy - Vista CA, US
Alec Babiarz - Leucadia CA, US
Nicholas Barendt - Fairview Park OH, US
Robert Ciardella - Rancho Santa Fe CA, US
James Cooper - Vista CA, US
Kenneth Espenschied - Olmsted Township OH, US
Erik Fiske - Carlsbad CA, US
Christopher Giusti - San Marcos CA, US
Patrick Jenkins - Carlsbad CA, US
Alan Lewis - Carlsbad CA, US
Raymond Merritt - San Diego CA, US
Naoya Nagano - Oceanside CA, US
Horatio Quinones - Carlsbad CA, US
Thomas Ratledge - San Marcos CA, US
Joe Sherman - Fallbrook CA, US
Floriana Suriawidjaja - Carlsbad CA, US
Todd Weston - Vista CA, US
Assignee:
Nordson Corporation - Westlake OH
International Classification:
B41J029/38
Abstract:
A viscous material noncontact jetting system has a jetting dispenser mounted for relative motion with respect to a surface. A control 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 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 velocity offset compensation are also provided.