Method and a machine for producing a container, in particular a container for pourable food products

A machine for producing a container comprising a sleeve-like main portion and an end piece attached to said main portion, said machine comprising:

• at least one forming member having an axis and delimited by a top surface and by a lateral surface extending around said axis;
• conveying means for advancing said forming member along given path transversal to said axis;
• feeding means for feeding said end piece on said top surface of said forming member;
• forming means for wrapping a sheet of packaging material around said lateral surface of said forming member such that the opposite side edges of the sheet parallel to said axis overlap one another;
• first sealing means for performing a longitudinal seal along said overlapped edges of said sheet so as to form the sleeve-like main portion of the container;
• and
• second sealing means for performing a transversal seal around said axis to join a peripheral edge of said end piece to an upper end of said sleeve-like main portion.

A method for producing a sleeve-like element of a multilayer packaging material having at least one layer of conductive material and at least one layer of heat-seal plastic material, said method comprising the steps of:

• advancing, along a given path, at least one forming member having an axis transversal to said path, and delimited by a lateral surface extending around said axis;
• wrapping a sheet of said multilayer packaging material around said lateral surface of said forming member such that the opposite side edges of the sheet parallel to said axis overlap one another;
• and
• sealing the overlapped edges of the sheet by inducing an electric current in said conductive layer of said sheet to heat it locally in the region to be sealed.

A machine for producing a sleeve-like element of a multilayer packaging material having at least one layer of conductive material and at least one layer of heat-seal plastic material, said machine being characterized by comprising:

• at least one forming member having an axis and delimited by a lateral surface extending around said axis;
• conveying means for advancing said forming member along a given path transversal to said axis;
• forming means for wrapping a sheet of said multilayer packaging material around said lateral surface of said forming member such that the opposite side edges of the sheet parallel to said axis overlap one another;
• and
• sealing means for sealing the overlapped edges of the sheet by inducing an electric current in said conductive layer of said sheet to heat it locally in the region to be sealed.