| 摘要 |
<p>A device for shortening translucent double-walled plate material (20) comprises means for shortening the plate material with a substantially rectilinear cut. The plate material comprises two basically parallel synthetic plates (21, 22) which are separated from each other at a basically constant distance by a number of parallel dividing walls, enclosing a number of elongated channels (24). To avoid too much pressure on the plate material, when it is shortened, and to avoid too large an amount of chips and too much electrostatic charging of the plate material, the device comprises two rotating knives (4, 5) to work into the plate material (20) from both sides. The rotating knives in accordance with the invention, have been placed slantwise behind each other and their combined penetration equals at least the thickness of the plate material (20) ensuring a complete cut through the plate material. <IMAGE></p> |
