Abstract: The rewinding machine includes a first winding cradle formed between a first winding roller, a second winding roller and a third winding roller. The first winding roller and the second winding roller define a nip through which there pass the winding cores with the web material being wound around them. The rewinding machine also includes a feed path of the winding cores that pass between the first winding roller and the third winding roller. A second winding cradle is formed between the first winding roller, the second winding roller and a fourth winding roller. The rewinding machine also includes a rolling surface extending around the first winding roller and defining a feed channel of the winding cores.

Abstract: The magazine for embossing rollers includes a plurality of support seats for embossing rollers, adjacent to one another according to an alignment direction. The magazine further includes a guide system for guiding the seats in a handling direction. The seats are provided with mutual connecting members so as to be connected to, and released from, one another.

Abstract: The machine includes a feeding path for the logs to be cut and a cutting head arranged along the feeding path. The cutting head includes a coupling for a disc-shaped cutting blade and is designed to impart the disc-shaped cutting blade a rotary motion around the axis thereof and a cyclic movement to cut the logs into single rolls, and to allow the logs to move forward along the feeding path. The machine also includes at least a grinding unit, including at least one grinding wheel mounted onto a rotation shaft and co-acting with a side of the disc-shaped cutting blade to grind the cutting edge of the same disc-shaped cutting blade. A controlled approach system is also provided to move the grinding wheel towards the disc-shaped cutting blade.

Abstract: The embossing-laminating device includes load bearing structure with at least two side members, a first path, for a first ply of web material, and a second path for a second ply of web material. Along the first path, a first pressure roller and a first interchangeable embossing roller are arranged, which define therebetween a first embossing nip for the first ply of web material. Along the second path a second pressure roller and a second interchangeable embossing roller are arranged, which define a second embossing nip for the second ply of web material. The embossing-laminating device also includes a magazine including a plurality of seats for a plurality of interchangeable embossing rollers, as well as at least a first manipulator for replacing embossing rollers.

Abstract: The system comprises includes a fence inside which machines are arranged that are potentially dangerous for the operators, forming part of a processing plant for processing web material and producing rolls. A passage counting the number of operators entering the fence and exiting therefrom is so controlled as to be accessible only when the machines are not working and to allow a partial operation of the machines inside the fence under particular safety conditions.

Abstract: The device includes a closed path, along which overturning members move, which are configured to pick the products in the entrance position and to release the products in the exit position. The overturning members are configured and arranged to perform, along a segment of the closed path included between the entrance position and the exit position, a rotation by about 90°, in order to overturn the products while translating them from the entrance position to the exit position along the segment of the path.

Abstract: The rewinding machine includes a first winding cradle, formed between a first winding roller, a second winding roller and a third winding roller and a second winding cradle formed between the first winding roller, the second winding roller and a fourth winding roller. The first winding roller and the second winding roller define a nip through which nip the winding cores, around which the web material is found, pass and the web material is fed towards a roll being formed in the second winding cradle. A severing member is furthermore provided, acting on the web material between a winding core and the nip, to sever the web material thus generating a tail edge of a completed roll and a leading edge of a new roll to be wound.

Abstract: The machine includes a feeding path for the logs to be cut and a cutting head arranged along the feeding path. The cutting head includes a coupling for a disc-shaped cutting blade and is designed to impart the disc-shaped cutting blade a rotary motion around the axis thereof and a cyclic movement to cut the logs into single rolls, and to allow the logs to move forward along the feeding path. The machine also includes at least a grinding unit, including at least one grinding wheel mounted onto a rotation shaft and co-acting with a side of the disc-shaped cutting blade to grind the cutting edge of the same disc-shaped cutting blade. A controlled approach system is also provided to move the grinding wheel towards the disc-shaped cutting blade.

Abstract: A gluing device including a guide roller to guide the tail of the log; on the guide roller, retaining elements to engage and retain the tail on the guide roller; a gluing member, to apply a glue to the tail retained on the guide roller. There are also provided embossing members, arranged and controlled to emboss a portion of the tail of the log. The gluing member applies the glue to embossing protrusions formed by the embossing members.

Abstract: The cutting machine for cutting logs of web material, includes a cutting head arranged along the feeding path of the logs. The cutting head includes a coupling for a disc-shaped cutting blade and is designed to impart the disc-shaped cutting blade a rotary motion around the axis thereof and a cyclic movement to cut the logs into single rolls, and to allow the logs to move forward along the feeding path. The machine also includes a store unit for disc-shaped cutting blades associated with the cutting head. A handling member is provided to remove a worn disc-shaped cutting blade from the cutting head and replace the worn disc-shaped cutting blade with a new disc-shaped cutting blade taken from the store unit.

Abstract: The rewinding machine includes a first winding cradle, formed between a first winding roller, a second winding roller and a third winding roller, and a second winding cradle formed between the first winding roller, the second winding roller and a fourth winding roller. The first winding roller and the second winding roller define a nip through which nip the winding cores, around which the web material is found, pass and the web material is fed towards a roll being formed in the second winding cradle. A severing member is furthermore provided, acting on the web material between a winding core and the nip, to sever the web material thus generating a tail edge of a completed roll and a leading edge of a new roll to be wound.

Abstract: The rewinding machine includes a first winding cradle formed between a first winding roller, a second winding roller and a third winding roller. The first winding roller and the second winding roller define a nip through which there pass the winding cores with the web material being wound around them. The rewinding machine also includes a feed path of the winding cores that pass between the first winding roller and the third winding roller. A second winding cradle is formed between the first winding roller, the second winding roller and a fourth winding roller. The rewinding machine also includes a rolling surface extending around the first winding roller and defining a feed channel of the winding cores.

Abstract: A rewinding machine is described with a winding cradle defined by three rollers and including a fourth winding roller defining with the first winding roller a cradle in which the web material is pushed by a winding core to the beginning of each winding cycle, to cause severing of the web material without the need for controlled mechanical parts.

Abstract: The embossing-laminating device includes load bearing structure with at least two side members, a first path, for a first ply of web material, and a second path for a second ply of web material. Along the first path, a first pressure roller and a first interchangeable embossing roller are arranged, which define therebetween a first embossing nip for the first ply of web material. Along the second path a second pressure roller and a second interchangeable embossing roller are arranged, which define a second embossing nip for the second ply of web material. The embossing-laminating device also includes a magazine including a plurality of seats for a plurality of interchangeable embossing rollers, as well as at least a first manipulator for replacing embossing rollers.

Abstract: The machine includes a first glue-applying device for closing the tail end; and a second mechanical-closing device for mechanically anchoring the tail end of the roll to a portion of an outer turn of the web material wound on the roll.

Abstract: The device includes a closed path, along which overturning members move, which are configured to pick the products in the entrance position and to release the products in the exit position. The overturning members are configured and arranged to perform, along a segment of the closed path included between the entrance position and the exit position, a rotation by about 90°, in order to overturn the products while translating them from the entrance position to the exit position along the segment of the path.

Abstract: A gluing device including a guide roller to guide the tail of the log; on the guide roller, retaining elements to engage and retain the tail on the guide roller; a gluing member, to apply a glue to the tail retained on the guide roller. There are also provided embossing members, arranged and controlled to emboss a portion of the tail of the log. The gluing member applies the glue to embossing protrusions formed by the embossing members.

Abstract: A gluing device including a guide roller to guide the tail of the log; on the guide roller, retaining elements to engage and retain the tail on the guide roller; a gluing member, to apply a glue to the tail retained on the guide roller. There are also provided embossing members, arranged and controlled to emboss a portion of the tail of the log. The gluing member applies the glue to embossing protrusions formed by the embossing members.

Abstract: The machine includes a first winding roller and a concave plate extending around the first winding roller. The first winding roller and the concave plate define a feed channel of the web material. Upstream of the concave plate there is arranged a moving member including a pinching surface cooperating with the first winding roller to pinch the web material against the first winding roller. The moving member is arranged and controlled to pinch the web material against the surface of the first winding roller and decelerate the web material between the moving member and the surface of the first winding roller, causing a leading edge to wind around itself to form a winding nucleus of a log.

Abstract: A rewinding machine is described with a winding cradle defined by three rollers and including a fourth winding roller, defining with the first winding roller a cradle in which the web material is pushed by a winding core to the beginning of each winding cycle, to cause severing of the web material without the need for controlled mechanical parts.