SHEET END PART FOLDING BACK METHOD AND SHEET END FOLDING BACK DEVICE

摘要

PROBLEM TO BE SOLVED: To provide a folding back method of a sheet end capable of obtaining a stable folding back operation and a sufficient adhesion force at folding back the end of a sheet material used for a paper-made drink container, and a sheet end folding back device for implement the method.;SOLUTION: The sheet end folding back method is characterized by folding back the end of the sheet material. The sheet end folding back method and the sheet end folding device for implement the method are characterized in that; the sheet material is loaded on a horizontal support table, the end including a fold-back part of the sheet material is protruded out of the support table, a base of the sheet material is fixed by being gripped with the support table and a rear end of a crimping plate, the fold-back part is pressed and folded downward by lowering a rotatable roll from above, then, the roll is moved horizontally in a direction of the crimping plate to fold back the fold-back part which is folded downward while crimping it between the roll and a tip of the crimping plate to be adhered.;COPYRIGHT: (C)2010,JPO&INPIT