Method in an unwinding machine with continuous operation for a fiber web and unwinding machine with endless operation for a fiber web

摘要

Method in a continuous operation unwinding machine for a fiber web, wherein in the unwinding a machine reel in a primary station and in a secondary station is unwound, and wherein a brought to the unwinding new machine reel (13) at full speed by means of a splicing roller (12) of a splicer with a web (W) of an emptying machine roll (10) is connected, wherein in the method, the old machine roll (10) and the new machine roll (13) are moved horizontally, characterized by the step of moving the new machine roll (13) and the old machine roll (10) by means of two pairs of linearly movable carrier carriages so that the unwinding begins on a pair of carrier carriages having a primary brake generator associated with the primary station for controlling the web tension, wherein the acceleration of the new machine roll (13) is performed at unwinding speed while si ch the carrier carriage moves in the direction of the primary winding station.