CASTING APPARATUS AND METHOD TO CHECK A THICKNESS OF A CAST SHEET

    公开(公告)号:US20220203580A1

    公开(公告)日:2022-06-30

    申请号:US17698620

    申请日:2022-03-18

    摘要: The invention relates to a casting apparatus for the production of a cast sheet of homogenized tobacco material, said casting system comprising
    a casting box adapted to contain a slurry of the homogenized tobacco material;
    a movable support;
    a casting system adapted to deposit the slurry contained in the casting box onto the movable support so as to form the cast sheet;
    a sensor to detect a thickness of the cast sheet;
    wherein the sensor includes a slider comprising a planar surface adapted to be in contact to a top surface of the cast sheet and a height detector adapted to measure the height of the planar surface so as to derive the thickness of the cast sheet.
    The invention also relates to a method to measure the thickness of a homogenized tobacco sheet.

    Device and method for generating a negative pressure in a film machine

    公开(公告)号:US11141891B2

    公开(公告)日:2021-10-12

    申请号:US15747035

    申请日:2016-05-10

    发明人: Torsten Schmitz

    摘要: The present invention relates to a device (10) for the generation of a negative pressure for stabilizing a melt strip (200) in the area of a transport device (120) of a film machine (100) particularly with a production process of a plastic film (230) comprising: at least one main chamber (20) for generating a first negative pressure in a first influence area (310) at least one auxiliary chamber (30) for generating a second negative pressure in a second influence area (320), wherein the first influence area (310) is assignable to at least one main area (210) of the melt strip (200) and the second influence area (320) is assignable to at least one edge area (220) of the melt strip (200) adjacent to the main area (210), and wherein the first negative pressure differs from the second negative pressure in order to effect a stabilization of the melt strip (200).