Abstract
For getting higher performance than first prototype of automatic welsh onion trimmer, we made the second prototype which can trim two piece of welsh onion at the same time. As a result of field test at Akita and Oita Prefecture used the second prototype, the working efficiency was about 900-1 200 pieces per hour. As for the rate of cutting root precisely was about 91-95 %, the rate of peeling precisely was about 87 % and the rate of shippable pieces were about 96-97 %. In one-man operation, the work efficiency was about 820 pieces per hour, and it became about 2.5 times than an expert worker. Therefore, we understood that the work efficiency improvement of the second prototype depends on the skill of supply work. The second prototype also could reduce the noise of peeling device to 88 dB(A) as equal as the first one. We confirmed that had a soundproofing effect than normally used peeler. The joint development company has started marketing of automatic welsh onion trimmer on the basis of the prototype in 2002.
