Apparatus and method for matching and splicing webs

Abstract

A method for matching and splicing webs that splices, by use of splicing tape, a rear end of a strip-shaped flexible backing that is drawn and conveyed from an old roll and a front end of a strip-shaped flexible backing that is drawn and conveyed from a new roll, in a state in which the front end and the rear end are matched, wherein the method performs matching and splicing by executing: a preparation step of performing matching and splicing preparations by retaining a front end of a strip-shaped flexible backing of the new roll with one of a pair of cutting drums, and supplying splicing tape to a pair of splicing drums, respectively; a cutting step of cutting with the pair of cutting drums a strip-shaped flexible backing of the old roll and a strip-shaped flexible backing of the new roll in an overlapping state after the preparation step; a feeding step of feeding to a splicing position a rear end of the strip-shaped flexible backing of the old roll and a front end of the strip-shaped flexible backing of the new roll that are cut in the cutting step, as they are in a matched state; and a splicing step of using the pair of splicing drums to adhere and attach splicing tape to each of a front surface side and a rear surface side of a matching portion that is fed to a splicing position in the feeding step; wherein, in the preparation step, at least one of the pair of splicing drums is driven independently, and in the cutting step, the feeding step and the splicing step, the one of the pair of splicing drums is driven in synchrony with other drums.

Dependencies are inferred from the claim text.