| 摘要 |
PURPOSE: An apparatus and a method of manufacturing an LED signboard are provided to complete manufacturing by fixing the inside with aluminum square pipe after bending aluminum plate into a V shaped groove using V bending cutter. CONSTITUTION: An aluminum plate part(100) forms rectangular blocks(110, 120) having a front face, a rear face, a left face, a right face by bending along a V bending groove. A V curved cutter(200) forms a V bending groove using a V cutting blade along a reference line of the aluminum plate part, a back side reference line, and a left side reference line and right side reference line. |
