Scoring device for gypsum board production device

B - Operations – Transporting – 26 – D

Patent

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Details

B26D 3/08 (2006.01) B26D 1/20 (2006.01) B31F 1/08 (2006.01) B31B 1/25 (2006.01)

Patent

CA 2667223

A grind stone-type scoring device for a gypsum board production device, capable of accurately and stably forming a groove with a constant depth in a gypsum board liner paper and in which wear of a rotating blade and receiving base is prevented. The scoring device (11) for the gypsum board production device (10) has the rotating blade (24) and the receiving base (30). The gypsum board liner paper (3) travels under tension on the receiving base (30), and the receiving base is in contact with the lower side of the gypsum board liner paper. The receiving base has an opening (32) directly under the rotating blade. The lower side of the gypsum board liner paper is released downward at the opening. The gypsum board liner paper is ground by an edge (24a) while being slightly bent downward within the range of the opening (in the region of angle .beta.).

Dispositif de rayage du type à meule d'affûtage pour un dispositif de fabrication de panneau en plâtre, pouvant former de manière précise et stable un renfoncement ayant une profondeur constante dans un papier de renforcement de panneau en plâtre et dans lequel l'usure d'une lame rotative et d'une base de réception est empêchée. Le dispositif de rayage (11) pour le dispositif de fabrication de panneau en plâtre (10) comprend la lame rotative (24) et la base de réception (30). Le papier de renforcement du panneau en plâtre (3) se déplace sous tension sur la base de réception (30) et la base de réception est en contact avec le côté inférieur du papier de renforcement du panneau en plâtre. La base de réception comprend une ouverture (32) située directement au-dessous de la lame rotative. Le côté inférieur du papier de renforcement du panneau en plâtre est affûté par un bord (24a) tout en étant légèrement courbé vers le bas dans la plage de l'ouverture (dans la région de l'angle .beta.).

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