Mitsubishi Jukogyo Kabushiki Kaisha

Toshiaki Kusubayashi

Tadashi Hirakawa

Yukio Oku

Kiyomitsu Yoshikawa

Masashi Waseda

Isao Tokumaru

A sheet stacker for a corrugation machine having a cutter to widthwisely cut off a continuously manufactured corrugated cardboard web into corrugated cardboard sheets, and then transfer, stack and eject the sheets. The sheet stacker comprises: a shingling conveyor arranged downstream of an outlet of the cutter for shingling the sheets; braking apparatus arranged above the shingling conveyor for braking the sheets transferred from the cutter; a first transfer conveyor arranged downstream of the shingling conveyor and which is vertically pivotable about its end portions on the upstream side thereof; a stopper disposed between the shingling conveyor and the first transfer conveyor for selectively stopping the sheets; at least one second transfer conveyor arranged in the downstream of the first transfer conveyor; a sheet stacking mechanism disposed downstream of the second transfer conveyor and which is vertically movable for receiving and stacking the sheets discharged from the second transfer conveyor; a drive mechanism for moving the sheet stacking mechanism up and down at a variable speed; and an adjustment mechanism for controlling the drive mechanism in response to the magnitude of a sheet stacking speed to thereby adjust a descent speed of the sheet stacking mechanism.

Sheet stacker

A rotary plate-shape material cutting apparatus is disclosed. The apparatus comprises a pair of hollow knife cylinders, each provided with a knife on the circumferential surface and adapted to rotate in mutually opposite directions, shafts piercing the hollow portion of the knife cylinders and having both ends thereof supported by frames, bearings positioned at both ends of the knife cylinders and interposed between the shafts and knife cylinders and at least one roll provided at each of the knife cylinders, rotatably supported therein and having its rotary surface kept in contact with the external circumference of the shafts.

Rotary plate-shape material cutting arrangement

A continuously moving supply conveyor delivers articles to be separated or batched to a sorting conveyor. The sorting conveyor includes a first conveyor and a second conveyor arranged to move about common spaced axes. The first conveyor includes an endless belt mounted on rollers and arranged to follow a first path. The second conveyor includes sprockets mounted on shafts of the rollers and having a diameter greater than that of the rollers. Chains engage the sprockets and support a belt for movement along a path outside that of the first conveyor. The first conveyor comprises a continuous belt extending the full length thereof. The second conveyor includes a belt extending through only a portion of the total length of the second conveyor. Means are provided for driving the first and second conveyors in the same direction but at different speeds. When it is desired to separate a second batch from a preceding first batch the belt portion of the second conveyor is caused to move into a position above the first conveyor thereby separating articles or sheets being delivered from the supply conveyor into a batch separate from the batch delivered by the first conveyor to the transport conveyor.

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Mihara, Japan

Toshiaki Kusubayashi