Molding procedure for cabinet or cupboard from polymer or other material uses core with sliding sections that can expand and contract

摘要

The procedure for making a one-piece molded cabinet or cupboard uses a mold with an inner core (1) having a central section (2) able to expand or contract (1). When the dimensions of the core are adjusted, the central section moves transversely to the opening, with interacting oblique surfaces (12, 15) on the central and intermediate (3, 4) sections allowing corner sections (5) to expand or contract to shape the cabinet or extract the core through its opening. The procedure for making a one-piece molded cabinet or cupboard with a front opening (22) and a surround (21) for fitting a door uses a mold with an inner core (1) having a central section (2) that is able to slide relative to peripheral sections to expand or contract it. When the dimensions of the core are adjusted, the central section moves in a transverse direction relative to the opening, with interacting oblique surfaces (12, 15) on the central and intermediate (3, 4) sections allowing corner sections (5) to expand or contract to shape the cabinet or extract the core through its opening.