Method Of And Apparatus For Manufacturing A Plastic Container Having A Curled Rim
AssigneeDexter Mould Technology B.V.
InventorErik Van Tilborgh
Life of this patent
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Abstract
A method of manufacturing a plastic container having a curled rim (320) comprises the steps of providing a sheet of plastic material; drawing a portion thereof into a mould (120) to form a bottom and wall (310′) of the container, leaving a surrounding portion of material to form a rim (320) of the container; cutting the rim loose from a remaining portion of material; and curling the rim. In the curling step, an inner part of the rim is supported by a supporting member while an outer part is pressed by a pressing member (230) moving relative to the supporting member for the rim to be bent around the supporting member.
Claims23
A method of manufacturing a plastic container having a curled rim comprising:
- providing a sheet of plastic material;
- drawing a portion of the material into a mould to form a bottom and wall of the container, leaving a surrounding portion of material to form a rim of the container;
- cutting the rim loose from a remaining portion of material;
- and
- curling the rim;
- wherein in the curling step, an inner part of the rim is supported by a supporting member while an outer part is pressed by a pressing member moving relative to the supporting member for the rim to be bent around the supporting member.
Apparatus for manufacturing a plastic container having a curled rim out of a sheet of plastic material, comprising:
- upper and lower moulding means for receiving therein between the sheet of plastic material, the lower moulding means comprising a mould for forming a bottom and wall of the container, the mould having a moulding cavity for receiving a portion of material to form the bottom and wall;
- and
- parts surrounding the moulding cavity for receiving therein between a surrounding portion of material so as to form a rim of the container, the parts being movable relative to each other for bending said rim around at least one of the parts.
Dependencies are inferred from the claim text.