| 摘要 |
<p>Station for forming stacks of layers of articles includes a horizontal supporting surface (50), featuring a window (20), which allows a layer (S) to pass freely therethrough. First means (10) drive the layers (S) along the support surface (50). A stationary descending ramp (25) starts from the initial part of said window (20) and extends downstream. A second horizontal lower surface (60) is situated in cascade at the downstream end of the ramp (25) and under a upper surface (50A), and forms the part of the support surface (50) situated downstream of the window. An additional conveyor (30) is connected to the window (20) to restore cyclically the continuity of the support in correspondence to the window for the odd layers (SA), and consequently to send each of the odd layers (SA) toward the upper surface (50A), and to allow the even layers (SB) to pass cyclically through the window (20). The even layers (SB) are consequently directed, due to gravity, onto the ramp (25). Second means (40) move each even layer (SB) to the ramp (25) and convey it to the lower surface (60). Third means (70) move each even layer (SB) on the lower surface (60), situated below. The even layer (SB) moves with the same speed as the corresponding odd layer (SA), pulled by the first moving means (10) on the upper surface. <IMAGE></p> |
