비닐 천공 시스템 개발 – 칼날 형상이 천공 성능에 미치는 영향
Punching System for Plastic Mulching at Soybean Field – Effect of Punching Knife Shape on the Cutting Performance
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참고문헌
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초록
본 연구에서 개발된 자동천공기는 콩의 재식밀도를 고려한 비닐 천공능력이 작업주행속도 0.18-0.28m/s 조건에서 콩의 주간거리 0.20m, 0.25m, 0.30m에 대해 각각 320-500m2/h, 260-400m2/h,210-330m2/h의 범위로 나타났다. 천공율은 칼날과 지면간 30mm 거리에서 비닐이 100% 천공되었으며, 50mm 거리에서 원형칼날 16.7-25.2%, 사각칼날 33.0-42.3%, 육각칼날 54.5-100.0% 범위에서천공되었다. 또한, 육각칼날 60°에서 비닐 절단면이 매끄럽고 부드러워 절단품질이 가장 우수하였다.
Abstract
In this study, performance of a developed automatic punching machine considering theplanting density of soybeans was evaluated in the case of the operation speed of 0.18-0.28 m/s. The performance demonstrated a rate of 320-500 m2/h, 260-400 m2/h, and 210-330 m2/h for the0.20 m, 0.25 m, and 0.30 m soybean planting density, respectively. One hundred percentpunching capacity was confirmed in 30 mm distance between the ground and the blade. Additionally, in the 50 mm distance condition, the performance of round, square, and hexagonalblades were observed in the range of 16.7-25.2%, 33.0-42.3%, and 54.5-100.0%, respectively. Above all, the hexagonal blade with a 60° edge angle had the most superior cutting qualitydemonstrating a smooth and soft cutting plane of the plastic.
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