| 摘要 |
A method of forming a tubular body, such as a can body, or a sheet blank therefor into a desired cross-sectional shape. The method comprises passing the blank or the tubular body wall (57) through the nips of at least three pairs of co-operating, rotating rollers (51-56) extending in the same general direction, and mutually transversely moving said pairs of rollers so as to provide said desired cross-sectional shape. <??>Furthermore the invention relates to an apparatus for forming a tubular body, such as a can body, or a sheet blank therefor into a desired cross-sectional shape. The apparatus comprises at least three pairs of co-operating, rotating rollers (51-56) extending in the same general direction, and means for mutually transversely or rotationally moving said pairs of rollers so as to provide said desired cross-sectional shape when the sheet blank or tubular body wall (57) has been passed through the nips of said co-operating rollers.A method of forming a tubular body, such as a can body, or a sheet blank therefor into a desired cross-sectional shape. The method comprises passing the blank or the tubular body wall (57) through the nips of at least three pairs of co-operating, rotating rollers (51-56) extending in the same general direction, and mutually transversely moving said pairs of rollers so as to provide said desired cross-sectional shape. <??>Furthermore the invention relates to an apparatus for forming a tubular body, such as a can body, or a sheet blank therefor into a desired cross-sectional shape. The apparatus comprises at least three pairs of co-operating, rotating rollers (51-56) extending in the same general direction, and means for mutually transversely or rotationally moving said pairs of rollers so as to provide said desired cross-sectional shape when the sheet blank or tubular body wall (57) has been passed through the nips of said co-operating rollers. <IMAGE> |
