| 主权项 |
1. Plant for forming grids for electric battery plates, which comprises:
a crucible (104) containing molten lead (105); a grid forming machine (102) provided:
with a support structure (2) set on the ground;with a rotary drum (4) rotatably mounted on said support structure (2) around a rotation axis (Y), around which it is actuated to rotate by drive means, said rotary drum (4) being provided with an external peripheral surface (7) with a plurality of grooves (8, 9) obtained in accordance with a grid design to be attained;with a sliding block (11), mounted fixed on said support structure (2), slidably sealingly coupled with the external surface (7) of said rotary drum (4), and provided with means (16) for distributing molten lead (105), adapted to insert said molten lead (105) within the grooves (8, 9) of said external peripheral surface (7), filling them during the rotation of said rotary drum (4); means for feeding molten lead (103) in order to feed said forming machine (102) in a continuous manner with a flow of molten lead (105) drawn from said crucible (104), comprising:
a feed duct (108), which is connected to said crucible (104) of molten lead (105) and to an inlet of said distribution means (16);a return duct (109) connected to an outlet of said distribution means (16) and to said crucible (104);a pump (110) for forcing the circulation of the flow of molten lead (105) under pressure between said crucible (104) and said distribution means(16) by means of said feed duct (108) and said return duct (109);wherein an ultrasound generator (18) is placed to intercept the feed duct (108) and is provided with at least one tip (19) immersed in the pressurized flow of molten lead (105) that moves through said feed duct (108) in order to transmit the waves produced by the ultrasound generator (18) to said molten lead (105). |
