| 摘要 |
PROBLEM TO BE SOLVED: To adjust a peripheral length difference occurring between amorphous sheet materials when an iron core material comprising a plurality of laminated amorphous sheet materials is to be unwound from a circular roll and supplied. SOLUTION: A peripheral length difference regulation apparatus for regulating the peripheral length difference occurring between the respective amorphous sheet materials when the iron core material comprising a plurality of laminated amorphous sheet materials is to be unwound from a circular roll to be supplied is placed in a supply path of the iron core material. The regulating apparatus includes a plurality of roller members provided to be vertically movable between a pair of feed rollers over which the iron core material straddles. The apparatus is structured such that the iron core material is supplied while the amorphous sheet materials except the uppermost material among the plurality of sheet materials constituting the iron core material are wound respectively under the plurality of roller members. COPYRIGHT: (C)2009,JPO&INPIT
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