| 摘要 |
PURPOSE:To enable blanks to be reversed and floded by a single stopper by providing at the side of a chute a stopper having the end entering and exiting the chute and a rock arm engaging said end of the stopper in folding the blank. CONSTITUTION:Below a chute 1 are provided a pair of folder rolls 3, 4 for feeding blanks 2 into the chute 1 and a folder roll 5 for reversing and folding the blank 2 between itself and one roll 4. In such a constitution is provided a generally angle-shaped stopper 6 pivotably about a pin 7 at the side of the chute 1, and the folded portion of the stopper is connected to a drive means 9 through a link 8. On the other hand, at the side opposed to the stopper 6 through the chute 1 is provided a rock arm 11, and to the middle of the rock arm is connected a lever 14 moved vertically by a drive means 13. And only when the blank is folded, the stopper 6 engages the rock arm 11 so that the blank 2 can be accurately folded. |
