MACHINE AND METHOD FOR OBTAINING A CURVED SURFACE FOR A FILM STRUCTURE

    公开(公告)号:US20230271393A1

    公开(公告)日:2023-08-31

    申请号:US18016088

    申请日:2021-07-13

    发明人: Youval KATZMAN

    IPC分类号: B29D11/00

    CPC分类号: B29D11/0073 B29D11/00788

    摘要: A machine and method for obtaining a curved surface of a film structure that comprises a carrier layer and a functional film (212). The machine comprises an annular support member having a supporting face adapted for supporting the film structure, and an opening (10) that is covered by the film structure when said film structure is supported by the annular support member; a clamping system configured to clamp the annular support member and the film structure when supported by the annular support member; and a forming system configured to apply pressure, and preferably temperature, on the film structure so as to curve said film structure in or through the opening (10) of the annular support member. The opening (10) of the annular support member has a contour that is non-circular so that the obtained curvature of the functional film (212) corresponds to a target curvature.

    A THERMOFORMING MACHINE AND METHOD
    4.
    发明公开

    公开(公告)号:US20230143337A1

    公开(公告)日:2023-05-11

    申请号:US17802818

    申请日:2021-02-25

    发明人: Youval KATZMAN

    IPC分类号: B29C51/18 B29C51/46 B29C51/42

    摘要: This thermoforming machine includes a thermoforming chamber having at least one heated air inlet through which heated air flows into the thermoforming chamber at a controlled pressure. The air inlet cooperates with a heated air flow distribution regulator located in the thermoforming chamber and through which the heated air flows out of the thermoforming chamber at a predetermined temperature. The regulator includes a heated air flow regulating mask receiving heated air flow, having a plurality of flow restricting elements providing different air flow restrictions.