BAND SAW

To provide a band saw that enables an operator to perform a cutting operation under preferable conditions without know-how of mechanical cutting that a skilled operator has through a wealth of experience.SOLUTION: A band saw 10 comprising cutting means 14 which has a saw blade 14a and feed means 16 which moves the cutting means 14 comprises: swarf removing means 18 which removes swarf sticking on the saw blade 14a; a swarf receiving plate 22 which is arranged below the swarf removing means 18 and sends received swarf downstream; imaging means 24 which images swarf collected on the swarf receiving plate 22; determining means 26 which compares swarf included in image data obtained through the imaging by the imaging means 24 with teacher data to classify the swarf included in the image data into a plurality of types, and selects a type having the largest content rate; and control means 28 which controls, based upon the type selected by the determining means 26, at least one of a rotating speed and a feeding speed of the saw blade 14a.SELECTED DRAWING: Figure 1 【課題】熟練者が豊富な経験によって得ていた機械式切断のノウハウがなくとも好適な条件で切断作業を行うことが可能となるバンドソーを提供する。【解決手段】鋸刃１４ａを有する切断手段１４と、切断手段１４を移動させる送り手段１６と、を備えたバンドソー１０において、鋸刃１４ａに付着した切屑を取り除く切屑除去手段１８と、切屑除去手段１８の下方に配置され、受けた切屑を下流へ流す切屑受け板２２と、切屑受け板２２に溜まった切屑を撮像する撮像手段２４と、撮像手段２４によって撮像された画像データに含まれる切屑と教師データとを比較して、画像データに含まれる切屑を複数のタイプに分け、最も含有割合の多いタイプを選出する判定手段２６と、判定手段２６によって選出されたタイプに基づいて、鋸刃１４ａの回転速度と送り速度の少なくとも一方の制御を行う制御手段２８とを備えたことを特徴とする。【選択図】図１