| 摘要 |
PROBLEM TO BE SOLVED: To manufacture a decorative sheet with an arrangement pattern of recessed and projected sections rich in variety, and also manufacture the sheet without stopping a manufacturing line. SOLUTION: A plurality of molds 11 of a press device for forming recessed and projected sections of bamboo knot shape on a plurality of arc-shaped sections of a corrugated sheet are moved integrally with the corrugated sheet A while processing the recessed and projected sections, and then the operation of separating the molds from the corrugated sheet A on the turning point is repeated to process the recessed and projected sections intermittently on respective arc-shaped sections, and the time of making respective molds 11 standing-by on the original point is varied continuously and the manners of variation are made different on respective arrow-shaped sections to vary continuously the pitches of recessed and projected sections on respective arc-shaped sections and make the manners of variation of pitch different on respective arc-shaped sections. |
