Paper converting plant

Paper converting plant, comprising:

• means for producing logs of paper material starting from one or more paper webs fed by corresponding paper reels, with one or more unwinders on which said paper reels are arranged, an embossing unit that receives at least one of the webs coming from said paper reels and provides to its embossing, a bridge crane with arms provided with grippers, and a rewinder that produces logs using the webs coming from the embossing unit, wherein the embossing unit is arranged to be configured in a first use configuration in which one or more embossing rollers positioned inside it are stably locked to respective supports and a second removal configuration in which said one or more embossing rollers are disengaged from said supports such that the one or more embossing rollers can be extracted from the embossing unit when the embossing unit is in the second removal configuration, the plant also comprising a storing unit in which are stored one or more embossing rolls according to a predefined storage order such that each embossing roller occupies a known and predetermined position in the same storage unit, the bridge crane being provided above the one or more unwinders, the embossing unit, the rewinder and the storing unit, each embossing roller having a respective longitudinal axis, further comprising interface means reversibly associable to the grippers of the bridge crane and to each of the embossing rollers in a phase of movement of the one or more embossing rollers, which interface means are interposed between the bridge crane and an embossing roller selected among those located in the embossing unit and in the storage unit and exhibits a first part shaped to be engaged by the grippers of the bridge crane and a second part shaped to engage the axial ends of the embossing roller providing an axial constraint that prevents the translation of the same embossing roller along the direction of its longitudinal axis.