| 摘要 |
<p>A self-contained factory unit for manufacturing load bearing building panels is provided. The factory unit includes an apparatus comprising means for forming structural foam blocks, means for cutting the foam blocks into strips, means for forming lengths of truss, means for assembling lengths of truss and foam strips together and means for attaching transverse members to the trusses in order to form the load bearing panels. The factory unit also has a source of electrical energy, a source of compressed air, and a prime mover such as an internal combustion engine. The apparatus for forming the truss comprises a plurality of interacting arms which move into and out of engagement with a wire, bending it into a zig-zag shape, and means for attaching a straight wire to each side of the zig-zag shaped wire. The zig-zag wire is then cut to an appropriate length. The lengths of zig-zag wire are then assembled with strips of foam so that the lengths of foam and truss alternate with one another. The trusses and foam strips are then positioned relative to one another so that the trusses project substantially the same amount from the foam strips and trusses. Transverse wires are then attached to the sides of the assembly of foam strips and trusses to form the load bearing panel. The apparatus for attaching strapping wires comprises means for gripping, tensioning and positioning each wire to be welded, and means for welding the wire to the trusses.</p> |
