US 12,233,429 B2
Fluid dispensing process control using machine learning and system implementing the same
Alan R. Lewis, Carlsbad, CA (US); Cutler Crowell, III, San Marcos, CA (US); Michael Gorman, Oceanside, CA (US); and Akira Morita, San Diego, CA (US)
Assigned to Nordson Corporation, Westlake, OH (US)
Appl. No. 17/904,299
Filed by NORDSON CORPORATION, Westlake, OH (US)
PCT Filed Feb. 19, 2021, PCT No. PCT/US2021/018664
§ 371(c)(1), (2) Date Aug. 16, 2022,
PCT Pub. No. WO2021/168174, PCT Pub. Date Aug. 26, 2021.
Claims priority of provisional application 62/978,966, filed on Feb. 20, 2020.
Prior Publication US 2023/0060352 A1, Mar. 2, 2023
Int. Cl. G01N 15/14 (2024.01); B05B 12/08 (2006.01); B05C 5/02 (2006.01); B05C 11/10 (2006.01); G06T 7/00 (2017.01)
CPC B05B 12/082 (2013.01) [B05C 5/0225 (2013.01); B05C 11/1007 (2013.01); G01N 15/1459 (2013.01); G06T 7/0004 (2013.01)] 50 Claims
OG exemplary drawing
 
1. A method of operating a dispensing device for dispensing viscous fluid, the dispensing device having a nozzle and a valve, the method comprising:
opening and closing the valve to dispense a portion of viscous fluid from the nozzle according to a first value of an operating parameter of the dispensing device;
capturing one or more images of the portion of viscous fluid;
inputting the one or more images of the portion of viscous fluid and the first value of the operating parameter to a machine learning tool;
determining, using the machine learning tool, a defect classification of the portion of viscous fluid based on the one or more images of the portion of viscous fluid and the first value of the operating parameter; and
determining a second value of the operating parameter based on the defect classification of the portion of viscous fluid.