| 摘要 |
The apparatus for turning by 90.degree. a panel or a panel stack (P) on the cutting machine worktable (Q), comprises a withdrawable gripping means (1) which can be rotated around a vertical axis (2), and upon control is caused to clamp a panel stack (P) close to one of its rear corners. The gripping means (1) is associated with shifting means (7) for the gripping means (1) to be caused to perform in a programmable precise manner a rectilinear movement (3) near to, and away from the cutting line (Z) of the longitudinally cutting machine, such that the panel stack (P) will be turned in clockwise or anticlockwise direction, depending on the panel stack (P) being clamped at its left-hand or right-hand corner. Thus, any cutting pattern, such as a cutting pattern with a pre-cutting operation, for which a panel stack (P) needs to be turned by 90.degree., can be then carried out. A withdrawable pushing means (4) is caused to act on the panel stack (P) concurrently with the gripping means (1), by being moved parallel to the longitudinally cutting machine in a programmable precise manner, so that it helps in the desired turning of the panel stack (P). Differently from the known art, a lesser floor space is here occupied by the conventionally constructed worktable Q for supporting a panel stack as it is being turned by 90.
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