| 摘要 |
The seaming machine has two pairs of dies which are longitudinally spaced. The dies are mounted from a frame for pivoting movement about parallel axes equally spaced on opposite sides of the longitudinal center line of the machine. A motor supported by the frame drives an eccentric and associated linkage which cause the dies to swing or oscillate laterally about said axes. The machine includes rollers adapting the machine for movement along metal roof panels of the type having their longitudinal edges configured for defining a stand rib seam. A sealing cap fits over the adjoining edges of the roof panels which form the standing rib. As the machine moves astride the cap, the dies engage and deform the sealing cap and also interlock the roof panels.
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