Patent ID: 7241412
Filing Date: 2007-07-10
Classification: B29C,B29L

Abstract:
1. A method for producing a panel comprising at least one first region of compression-moulded thermoplastic or thermosetting material and a second region of injection-moulded thermoplastic material, comprising the steps of: providing a first and a second half-mould relatively movable along a vertical direction between an open position and a closed position, the half moulds having respective moulding surfaces having respective compression moulding regions and injection moulding regions facing each other; providing between said first and second half moulds a positioning element movable between an operative position and an inoperative position, said positioning element having a positioning surface which in said operative position extends along a border line between said compression moulding and injection moulding regions; providing a retaining element borne by one of said half-moulds and vertically movable with respect to the respective half-mould between an extracted and a retracted position, said retaining element having a retaining surface extending along said border line; positioning at least one plate of thermoplastic or thermosetting material in a plastic state between the compression moulding regions of said half-moulds, with an edge of said plate abutting said positioning surface of said positioning element when the positioning element is in its operative position; retaining said edge of said plate along said border line by pressing said retaining surface of said retaining element in the extracted position against said edge during the closure of said half-moulds; compressing the plate between said mutually facing compression-moulding regions of said moulding surfaces; and injecting plastic material between said two mutually facing injection moulding regions of said moulding surfaces when the half-moulds are in the closed position to produce said panel.