| 摘要 |
<p>A movable head (1, 1a) for a stretching machine for sheets or plates or the like comprises: - a first front portion (2, 2a) including a plurality of sheet segments (3, 3a) parallel to one another and shaped so as to define a clamping mouth (18) and a stretching plane (XY) orthogonal to the sheet segments (3, 3a), wherein the mouth (18) comprises clamping means to lock a sheet (P) or plate or the like, so that a traction force (F) parallel to the stretching plane (XY) is applicable thereto, - a second rear portion (4, 4a) firmly connected to the first front portion (2, 2a) so as to stiffen the first front portion (2, 2a), - a plurality of stiffening tie-rods (20), arranged parallel to the stretching plane (XY) for connecting the first and the second portions (2, 4; 2a, 4a) to each other.</p> |
