| 摘要 |
As each tube is fed into the feed chute of a fluorescent lamp tube crusher, and regardless of the size of the tube, a sensor switch in the chute immediately sends a count signal to an associated tube counter, and also produces an inhibit signal which prevents a second count signal from being applied to the counter for a predetermined interval of time that is greater than the time it takes to grind up a tube of a first size and that is less than the time it takes to crush a tube of larger size. If at the end of the interval a tube of larger size is still being crushed, a second count signal is applied to the counter.
|
