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AssigneeYoshino Gypsum Co., Ltd.
InventorsShoichi Okazaki, Takumi Hatanaka, Ken Hayase
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A gypsum board forming device (10) constitutes an apparatus of producing gypsum boards. A layered formation of a lower sheet (1), an upper sheet (2) and a gypsum slurry (6) passes through a forming gate (40). The forming device forms the formation into a plate-like configuration with use of upper and lower plates (20, 30). The upper plate (20) is constituted from a fixed substrate plate (21) and a movable plate (22), and the movable plate is in surface-to-surface contact with the upper sheet of the layered formation. A plurality of actuators (50) is supported by the substrate plate. Each of the actuators applies an upward or downward load (P) to the movable plate locally for a local deformation of the movable plate owing to a deflection thereof. A gate size (T) is locally changed by displacement of the movable plate relative to the substrate plate.
An apparatus of producing gypsum boards, which has a forming gate defined by upper and lower plates extending in a crossing direction with respect to a conveyance direction of upper and lower sheets of paper, so that a layered formation, which is constituted from the upper and lower sheets and slurry continuously interposed between the sheets, is passed through said gate to form the layered formation into a plate-like configuration, comprising:
A method of producing gypsum boards, in which a forming gate is defined by upper and lower plates extending in a crossing direction with respect to a conveyance direction of upper and lower sheets of paper, so that a layered formation, which is constituted from the upper and lower sheets and slurry continuously interposed between the sheets, is passed through said gate to form the layered formation into a plate-like configuration,
Dependencies are inferred from the claim text.