A thermoforming mold device (1) providing a piece with a thin wall starting with a sheet of thermoplastic material is provided. At least one (3) of two parts of the mold (3, 3′) comprises at least one means (4) of local deformation of a sheet (2′) in the mold (3, 3′) in its closed state, the at least one means (4) comprises a piece of hollow molding with a peripheral edge, which can be connected selectively to a source of suction and can be displaced between a folded position, in which the molding piece is situated in close proximity with the wall of the thermoformed piece, and a deployed position, in which the molding piece is applied under pressure with its peripheral edge against the wall of the thermoformed piece upholding the other part of the mold.
Thermoforming mold device and a process for its manufacture and use
2021-06-01
Patent
Elektronische Ressource
Englisch
IPC: | B29C Formen oder Verbinden von Kunststoffen , SHAPING OR JOINING OF PLASTICS / B29K Index-Schema für Formmassen oder Materialien für Verstärkungen, Füllstoffe oder vorgeformte Teile, z.B. Einlagen in Verbindung mit den Unterklassen B29B, B29C oder B29D , INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS / B29L INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES , Index-Schema für besondere Gegenstände in Verbindung mit Unterklasse B29C / B60R Fahrzeuge, Fahrzeugausstattung oder Fahrzeugteile, soweit nicht anderweitig vorgesehen , VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR |
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