Formwalzen eines nicht-zirkulares Querschnittes

摘要

A method for fastening a bottom part (40) to a can body (31). The method comprises positioning the bottom part at one end of the can body such that a rim portion of the bottom part is in abutting engagement with a radial flange formed at said one end, rotating the can body in relation to at least one bending or folding tool (43-45), and moving said bending or folding tool radially in relation to the can body along a predetermined path corresponding to the cross sectional shape of the can body, so as to fasten the bottom part to the can body. Furthermore the invention relates to an apparatus (13) for fastening a can bottom to a can body having a non-circular cross-sectional shape. The apparatus comprises means for rotating a can body with a can bottom positioned at one end thereof such that a rim portion of the bottom is in abutting engagement with a radial flange formed at said one end of the can body, at least one bending or folding tool (43-45) movable radially in relation to the can body positioned on said rotating means, and means (46) for moving or biasing the bending or folding tool radially into engagement with said rim portion and/or with said radial flange (41,42), so as to bend or fold said rim portion and/or said flange. Additionally the invention relates to a can making facility comprising the aforementioned apparatus.A method for fastening a bottom part (40) to a can body (31). The method comprises positioning the bottom part at one end of the can body such that a rim portion of the bottom part is in abutting engagement with a radial flange formed at said one end, rotating the can body in relation to at least one bending or folding tool (43-45), and moving said bending or folding tool radially in relation to the can body along a predetermined path corresponding to the cross sectional shape of the can body, so as to fasten the bottom part to the can body. Furthermore the invention relates to an apparatus (13) for fastening a can bottom to a can body having a non-circular cross-sectional shape. The apparatus comprises means for rotating a can body with a can bottom positioned at one end thereof such that a rim portion of the bottom is in abutting engagement with a radial flange formed at said one end of the can body, at least one bending or folding tool (43-45) movable radially in relation to the can body positioned on said rotating means, and means (46) for moving or biasing the bending or folding tool radially into engagement with said rim portion and/or with said radial flange (41,42), so as to bend or fold said rim portion and/or said flange. Additionally the invention relates to a can making facility comprising the aforementioned apparatus.