| 摘要 |
The box forming system comprises an auxiliary processing line (15) and a main processing line (16) interconnected by a box forming sheet turnover device, the auxiliary processing line comprises a sheet loading station (17), sheet entraining chains (18), glueing members (19) effective to apply a glue to first lateral bands of the sheet and folding members (20) which, by acting on the moving sheets on-the-fly while being entrained by the entraining chains (18), force the first lateral bands thereof to fold upon themselves and adhere closely. Then the sheet, with the first lateral bands already folded upon themselves but still substantially coplanar with its base is positioned on the starting station of the main processing line with the second lateral bands parallel to the direction of advance of this main line, in such a way as to be pre-folded and then brought to a situation of coplanarity with the box base or bottom. |
