As it has the scribe cutter which forms the scribe line in the scribe methodological null brittle material baseplate

摘要

Scribe head 1 of this invention does the ascent and descent of the scribe cutter with the revolution of servo-motor, 3 at the same time, transmits the rotary torque of servo-motor 3 as scribe pressure to the scribe cutter. Crossing the scribe line, when the scribe it does, when passing that scribe line, it raises scribe pressure temporarily. In addition, rotary torque of servo-motor 3 is controlled to the limiting value which at the position where cutter 6 of the scribe head moves on the brittle material baseplate, beforehand is set. Servo-motor 3 is located is controlled.