Patent ID: 8087131

Claim:
A stretching assembly for cloth comprising a heating furnace having two opposite sidewalls; and a channel formed through the opposite sidewalls of the heating furnace and having an inlet formed on one of the sidewalls of the heating furnace; and an outlet formed on the other sidewall of the heating furnace and aligning with the inlet; a pressing device set to face the inlet of the heating furnace and having a first pressing wheel facing the inlet of the heating furnace and having an external surface; a middle; two ends; and multiple annular protruding segments formed around the external surface of the first pressing wheel and each annular protruding segment having a width and the widths of the annular protruding segments increased from the middle to the ends of the first pressing wheel; and a height; and a second pressing wheel set parallel the first pressing wheel to form a curved clearance between the pressing wheels and having an external surface; a middle; two ends; and multiple annular concave segments formed around the external surface of the second pressing wheel corresponding respectively to the annular protruding segments of the first pressing wheel and each annular concave segment having a width and the widths of the annular concave segments increased from the middle to the ends of the second pressing wheel; and a depth; and a shaping device set to face the outlet of the heating furnace, aligning with the pressing device and having two shaping wheels facing the outlet of the heating furnace, being parallel with each other and each shaping wheel having a flat external surface.