| 摘要 |
A machine for performing cutting operations on multi-layered glass sheets (L) comprises a fixed work bench (1), defining a resting surface (2) that is to receive the sheet (L) to be machined, and a fixed cutting bridge (6), mounted on which are a top scribing tool (8) and a bottom scribing tool (7), which are mobile along the cutting bridge (6) in a direction Y. A mobile bridge (21, 23) is provided on the bench, having members (22, 26) for gripping the sheet so as to move the sheet (L) on the fixed bench (2) in a horizontal direction X orthogonal to the aforesaid direction Y. Electronic control means (PC) are programmed for controlling during the operation of scoring of the glass sheet (L) a movement in the direction X of the sheet (L) and a movement in the direction Y of the tools (8, 7) co-ordinated with one another in such a way as to obtain a score according to any predetermined path (T) in the plane of the sheet (L), with rectilinear and/or curved stretches, without imparting a rotation upon the sheet during the scoring operation. Both the top tool (8) and the bottom tool (7) are mounted so that they can turn about an axis Z orthogonal to the direction X and to the direction Y, so as to remain tangential to the scribing path during the scoring operation. |
