An apparatus for securing a spinal rod within an anchoring device, wherein the anchoring device has an open end and a locking cap for securing the spinal rod within the open end. Since the supporting device supports the guide member when the auxiliary discharging part is in an opened state, paper being discharged through the auxiliary discharging part may be stably stacked on the cover unit, being prevented from interfering with the guide member. The seismic data set is scanned to determine a first set of groups. A pivoting frame 23 supports the cope and drag flasks 12,13, a match plate 11 clamped therebetween, and the upper squeeze member 14, such that they rotate in unison between a horizontal position, in which the pressure-applying plane of the upper squeeze member 14 is oriented vertically downward, to a vertical position in which the pressure-applying plane is oriented horizontally.