Patent ID: 6886772

Claim:
A splicing apparatus, comprising: a first driver operable to spin a first roll of web; a second driver operable to spin a second roll of web; a splicer operable to connect a second web fed out from the second roll to a first web fed out from the first roll, and cut off the first web; an accumulator comprising a movable roller and a fixed roller, the accumulator operable to store at least one of the first web and the second web between the movable roller and the fixed roller; a first sensor operable to sense a position of the movable roller; a second sensor operable to sense rotation information regarding a rotation of the second driver per unit time; and a controller operable to control a rotational speed of the first driver and that of the second driver, wherein the controller is operable to calculate the rotational speed of the second driver based on a positional change of the movable roller, rotation information of the second driver and a web flow velocity at a position downstream of the accumulator, and operable to control the second driver according to the calculated rotational speed.