Fuji Photo Film Company, Limited

Yoshio Nojima

Shigehisa Shimizu

Kunihiro Sumida

Katuhiro Sugiyama

A slitter slits a wide web into narrow strips by at least one slitting blade mounted on a shaft member which extends in the transverse direction of the wide web while the wide web is fed in the longitudinal direction thereof. The slitter is provided with a slitting width changing system which has a slitting blade holder which holds the slitting blade and is fitted on the shaft member to be rotatable about the shaft member between a released position in which it can be slid along the shaft member in the longitudinal direction of the shaft member and a locked position in which it is fixed to the shaft member not to slide along the shaft member. A slitting blade shift mechanism rotates the slitting blade holder to the released position, slides it along the shaft member to a position determined according to a desired slitting width, and rotates it to the locked position.

Slitting width changing system for slitter

An apparatus for feeding sheets comprises a variable speed conveyor for feeding a sheet cut from a web. A high speed conveyor receives the sheet fed by the variable speed conveyor, and feeds it at a high speed v1. A cutting completion detector detects the separation of the sheet from a cutter and generates a detection signal. A controller adjusts the feeding speed of the variable speed conveyor to a feed speed v2 as long as the leading portion of the web is being fed to the cutter, adjusts the feeding speed to a speed v0 (v0&lt;v1, v2), at which the sheet is kept stationary with respect to the cutter, during the time from when the cutter starts cutting the web to when the cutting is finished and the cut sheet separates from the cutter, and increases the feeding speed from the speed v0 to the speed v1 during the time from when the detection signal is generated to when the sheet arrives at the high speed conveyor.

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Kanagawa, Japan

Yoshio Nojima