| 摘要 |
Quadrangular sewing machine for making hollow manufactured cardboard products, especially boxes, from a cardboard sheet, comprising means for supplying the machine with the said sheet (1), a form (7) supported by a corresponding form-holder rod, four angular operating heads (10) with corresponding centripetal horizontal drive means for pressing and cutting a strip (12) heat-welding at high temperature, means for driving the said form (7), means for adjusting the said supply means in relation to the format of the sheet supplied by them, a central programmable microprocessor unit for controlling the aforesaid drive means, supply means and adjustment means, of which the said means for supplying the machine with the sheets (1) comprise a horizontal panel (2) slaved to a vertical movement and a carriage (6) with a telescopic structure, of which the said drive means comprise a producing cylinder (11) for each head (10) to be moved and of which the said format-change adjustment means comprise several electric motors (16, 17) slaved to the said central unit. <IMAGE> |
