CONTROL METHOD OF AUTOMATIC CUTTER

Japanese Patent JP3874040

B2

PROBLEM TO BE SOLVED: To release a lock even with a cutter blade separation type automatic cutter by reversing a driving motor only at the time of detecting a cutting stroke by a movable blade stroke discrimination means in the case of detecting by an abnormality discrimination means that a movable blade cannot be moved due to an external pressure load.
SOLUTION: When a cover sensor is turned on and dislocation of a relative position between a movable blade and a fixed blade is detected at an a1 point in the midway of an (a) section where the movable blade moves from a stand-by position to the maximum projected position, a driving motor is reversed by speedily turning off electrification and stopping the movable blade. Then, the movable blade moves in the opposite B direction and returns to the stand-by position. At this time, abnormality is detected only at the time when the movable blade is in the (a) section. That is, as the movable blade is in the direction where a load reduces when the movable blade passes the (a) section and enters a section to return to the stand-by position from the maximum projection position, the movable blade can return to the stand-by position by normal motor electrification even when a position of the blade slightly dislocates.

JPH05318625

SHEET PROCESSING METHOD AND DEVICE IN CORRUGATED FIBREBOARD BOX MAKING MACHINE

Hiroaki Hosomi
Kiyotaka Usui

JP14693197A

January 31, 2007

June 04, 1997

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Seiko Epson Corporation

B26D5/20; B41J11/70; (IPC1-7): B26D5/20; B41J11/70

JP5084697A
JP62159298U
JP63161697U
JP5169398A

Teruo Naito
Noriaki Miyakoshi
Masahiko Ueyanagi
Osamu Suzawa

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