Apparatus and method for manufacturing gypsum board

Details Apparatus and method for manufacturing gypsum board Apparatus and method for manufacturing gypsum board

B - Operations, Transporting

28

B

B28B 1/30 (2006.01)

Patent

CA 2687197

A gypsum board forming device (10) constituting a gypsum board manufacturing apparatus forms a laminate of a lower sheet (1), an upper sheet (2) and a gypsum slurry (6) passing through a forming gate (40) into a plate shape by upper and lower plates (20, 30). The upper plate (20) is constituted of a fixed base plate (21) and a movable plate (22). The movable plate comes into face contact with the upper sheet of the laminate. Lifting drive devices (50) are supported on the fixed base plate. The lifting drive devices locally exert a vertical load (P) on the movable plate to locally deform the movable plate. A gate dimension (T) locally changes due to the displacement of the movable plate relative to the fixed base plate.

L'invention concerne un dispositif de fabrication de plaque de plâtre (10) constituant un appareil de fabrication de plaque de plâtre, lequel dispositif forme un stratifié constitué d'une feuille inférieure (1), d'une feuille supérieure (2) et d'une pâte de plâtre (6) passant par l'intermédiaire d'une vanne de formage (40) en une forme de plaque avec des plaques supérieure et inférieure (20, 30). La plaque supérieure (20) est constituée d'une plaque de base fixe (21) et d'une plaque mobile (22). La plaque mobile vient en contact de face avec la feuille supérieure du stratifié. Des dispositifs d'entraînement de levage (50) sont portés sur la plaque de base fixe. Les dispositifs d'entraînement de levage exercent localement une charge verticale (P) sur la plaque mobile pour déformer localement la plaque mobile. La dimension de vanne (T) change localement en raison du déplacement de la plaque mobile par rapport à la plaque de base fixe.

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