Nishimura Seisakusho Co.

Hideo Mukai

Toshiaki Yamaguchi

Keizo Narita

Tsuneo Yoshida

A roll slitting and rewinding machine apparatus for exchanging rewound rolls comprises a frame holding a plurality of slitted strip rewinding roll supporting means arranged in two rows and a carrier rotatably supporting said frame so that said frame is movable from a vertically arranged position and a horizontally arranged position. The carrier being movable from a forward position to a retracted position, whereby when said carrier takes said forward position with said frame taking said first position the rewinding rolls are in condition of rewinding operation while when said carrier takes said retracted position with said frame taking said second position the rewinding rolls are removed from their respective support means.

Apparatus for exchanging rewound rolls in a roll slitting and rewinding

An apparatus for suppressing the rotational fluctuation of a supply roll includes a drive source and a differential gear. The drive source is operatively connected to the first input shaft of the differential gear and a support shaft for the supply roll is operatively connected to the second input shaft via a variable speed gear. The output shaft is joined to both a hydraulic coupling and a control for the variable speed gear. A high frequency fluctuation of the rotation of the supply roll causes a forward or reverse rotation of the output shaft of the differential gear. The hydraulic coupling acts to retard the output shaft rotation thereby causing a braking or driving force to be applied through the differential gear to the supply roll for eliminating the rotational fluctuation of the supply roll. The variable speed gear functions to keep the second input shaft of the differential gear to rotate at a fixed average speed while the average rotational speed of the supply roll continues to gradually increase as the roll diameter is reduced with the progress of the unrolling operation.

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Kyoto, Japan

Hideo Mukai