| 摘要 |
Machine for producing prefabricated sandwiched building panels having upper and lower grids and insulating material between the grids. The machine has a pair of transversely movable insertion devices suitable for inserting sections of metal wire into the panel, a pair of transversely movable cutting devices vertically coaxial with the insertion devices and interposed between the insertion devices and the panel for cutting the wire at the surface of the upper grid of the panel, a pair of transversely movable welding devices positioned below the panel and vertically coaxial to the insertion devices and the cutting devices for welding the lower end of the wires to the lower metal grid, and a pair of transversely movable upper welding devices one production step behind the cutting devices and positioned axially parallel to the cutting devices for welding the upper end of the wires to the upper metal grid.
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