Volume-based dispensing control method

Details Volume-based dispensing control method Volume-based dispensing control method

2009-12-31

2011-12-20

Heitbrink, Jill (Department: 1743)

Plastic and nonmetallic article shaping or treating: processes

With measuring, testing, or inspecting

Measuring a weight or volume

Reexamination Certificate

active

08080192

ABSTRACT:
A volume-based dispensing control method is capable of enabling a pump to dispense a resin with greatly increased accuracy. The method includes: a preliminary dispensing step in which a resin is dispensed on one or more workpieces with a pump; a volume measuring step in which the workpieces passed through the preliminary dispensing step is scanned by an optical scanner to measure a dispensed resin volume; a corrected-volume calculating step in which a corrected volume of the resin to be additionally dispensed is calculated by using a difference between the dispensed resin volume measured in the volume measuring step and a predetermined dispensing volume; and a corrective dispensing step in which the resin is dispensed on the workpieces in light of the corrected volume calculated in the corrected-volume calculating step.

REFERENCES:
patent: 5518388 (1996-05-01), Swenor et al.
patent: 7480027 (2009-01-01), Inoue et al.
patent: 2008/0137106 (2008-06-01), Ono
patent: 2010/0244296 (2010-09-01), Keys

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