MANUFACTURE OF FOUR-SIDED SHEET METAL CONTAINERS

摘要

Apparatus for making tapered four-sided sheet metal containers comprises a tapered four-sided mould and folding means for folding a sheet metal blank onto the mould. The folding means comprises a carrier 28 and four folding elements pivotally mounted on the carrier. When the mould and the folding means are displaced towards one another with the sheet metal blank disposed between them, the folding elements pivot about their pivotal mountings and fold peripheral portions of the blank onto the sides of the mould.