The invention discloses a truss shearing mechanism of a triangular truss
production line. The truss shearing mechanism of the triangular truss
production line structurally comprises an upper shearing device and a lower shearing device. According to the upper shearing device, two upper shearing arms are hinged to an upper hinged shaft, upper scissors are installed at the corresponding ends of the upper shearing arms, the other end of each upper shearing arm is hinged to a
crankshaft driving mechanism, and the
crankshaft driving mechanism drives the two upper shearing arms to shear an upper spiral rib. The lower shearing device comprises two lower shearing arms, wherein the lower shearing arms are hinged to a first lower hinged shaft and a second lower hinged shaft respectively, lower scissors are installed at the corresponding ends of the lower shearing arms, the other ends of the lower shearing arms are hinged to the two sides of the
crankshaft driving mechanism, and the crankshaft driving mechanism drives the two lower shearing arms to shear a lower spiral rib. The truss shearing mechanism of the triangular truss
production line has the advantages that power is low,
impact on a
power grid is low, the structure is simple, and the cost is low; the phenomenon that the two pairs of scissors collide with each other is avoided, the service life is long, and the quality of a sheared truss is improved; a
cut of the lower spiral rib is flat after the lower spiral rib is sheared, and the phenomenon that due to the fact that the width of the inner side of the triangular truss becomes narrower, the defect of deformation of the triangular truss is avoided.