Patent ID: 6063320
Filing Date: 2000-05-16
Classification: B27N

Abstract:
A process of hot pressing boards comprising the steps of:putting a board on a caul plate; carrying out a board conveying step for conveying the board on the caul plate to a hot pressing section and setting the board on the caul plate in a predetermined hot pressing position therein; and hot pressing the board in the hot pressing section with hot pressing means;the hot pressing means including a hot plate for hot pressing the board in the predetermined hot pressing position, and a spacer configured to project from the hot plate and capable of adjusting pressing of the board, the board being hot pressed in a closed space defined by the hot plate, the caul plate and the spacer;the caul plate in the board conveying step being supported, in a state free from frictional contact with any other member, by a conveying and setting means which is advanced and retreated into and out of the hot pressing section, said advancing while the caul plate is conveyed to the hot pressing section, and set in the hot pressing position in the hot pressing section by the conveying and setting means, and the conveying and setting means is thereafter retreating to a position free from interference with the hot pressing operation;wherein the conveying and setting means includes a conveying member and a setting member;the caul plate in the board conveying step is supported in a state free from frictional contact with any other member by the conveying member and supported by the setting member in succession to the conveying member in the hot pressing section, and set in the predetermined hot pressing position in the hot pressing section by the setting member after the conveying member has been retreated to a position free from interference with hot pressing operation, the board being hot pressed after the setting member has been retreated to a position free from interference with the hot pressing operation;wherein the caul plate supporting the board having been hot pressed is supported by the setting member in the hot pressing section, and is subsequently supported by board take-out means which is advanced and retreated between the hot pressing section and the outside thereof in succession to the setting member to be conveyed in a state free from frictional contact with any other member to the outside of the hot pressing section; andwherein the board is continuously supported by the caul plate during the conveying step, the setting step, the hot pressing step and the take-out step.