Brushing – scrubbing – and general cleaning – Machines – Brushing
Patent
1990-01-22
1991-02-19
Roberts, Edward L.
Brushing, scrubbing, and general cleaning
Machines
Brushing
15 881, 15102, 5116587, B08B 1302
Patent
active
049930974
ABSTRACT:
An apparatus and method are disclosed for deburring the surface of a printed circuit board passing along a moving conveyor. The apparatus comprises a rotating brush head for abrading against the first surface of the printed circuit board. A three phase wattmeter is utilized to sense the power consumption of the motor driving the rotating brush head and generate a signal in response thereto. A control circuit is connected to the three phase wattmeter and regulates the elevation of the brush head in response to the three phase power consumption of the motor. A sensor, such as an optical sensor is provided to sense the thickness and/or surface characteristics of circuit boards before they meet the rotating brush head. A sensor output signal is generated and utilized to preadjust the height of the rotating brush head before it meets the surface of each incoming surface of each incoming surface circuit board. After the rotating brush head has met each incoming circuit board, the output signal from the three phase wattmeter will override the output signal from said sensor, thereby permitting the rotating brush head to accomplish a desired finish on each passing circuit board. Thereafter, the input received from the sensor will permit the rotating brush head to again preadjust to a desired height before it meets the next incoming circuit board.
REFERENCES:
patent: 3795931 (1974-03-01), Martino
patent: 4382308 (1983-05-01), Curcio
patent: 4604835 (1986-08-01), Borin
D.E.M. Controls of Canada
Roberts Edward L.
LandOfFree
Circuit board deburring system does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Circuit board deburring system, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Circuit board deburring system will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-1132936