Importance

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Abstract

In the disclosed apparatus, a web of material is fed from a supply roll, around a plurality of idler rollers, and past a series of blades which slit the web into a plurality of strips. Adjacent strips are rewound about corresponding product cores on different ones of a pair of takeup rollers in alternating fashion. Controls are provided for independently varying the amount of current supplied to first and second electric motors which drive the takeup rollers and supply roll respectively. The amount of slippage of the product cores relative to the takeup rollers can be adjusted by a clutch mechanism. According to the disclosed method, the takeup rollers are first brought up to full operating speed. The speed of the supply roll is gradually increased to feed the web to the product cores so that they rotate at approximately eighty percent of the speed of the takeup rollers throughout the rewinding operation. Product rolls with uniformly aligned edges and without high spots or material distortion are produced.

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First Claim