| 摘要 |
PURPOSE: An apparatus for quickly manufacturing M-shaped envelopes is provided to quickly produce envelopes at low cost. CONSTITUTION: An apparatus for quickly manufacturing M-shaped envelopes comprises an inner foldable plate (100), an outer foldable plate (200), and an air gun. The inner foldable plate transfers an envelope body being supplied without clearances. The outer foldable plate guides a rear side of an envelope to an upper part of the inner foldable plate. The air gun folds a foldable part of the envelope into an M shape by distributing compressed air to the inner foldable plate. |
