Gluing device for gluing the tail of a log and related method
AssigneeFabio Perini S.p.A.
InventorsDavide Ghiselli, Matteo Borselli
Life of this patent
Estimating the term…
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.
Claims14
A gluing device for gluing a tail of a log of web material, comprising:
- a guide roller to guide the tail of the log;
- on said guide roller, retaining elements to engage and retain the tail on the guide roller;
- a gluing member to apply glue to the tail retained on said guide roller;
- embossing members adapted to emboss a portion of the tail of the log before glue is applied, said gluing member being adapted to apply said glue to embossing protrusions formed by said embossing members;
- and wherein said embossing members comprise embossing protuberances on said guide roller and a pressure member cooperating with said embossing protuberances.
A gluing device for gluing a tail of a log of web material, comprising:
- a guide roller to guide the tail of the log;
- on said guide roller, retaining elements to engage and retain the tail on the guide roller;
- a gluing member to apply glue to the tail retained on said guide roller;
- embossing members adapted to emboss a portion of the tail of the log before glue is applied, said gluing member being adapted to apply said glue to embossing protrusions formed by said embossing members;
- wherein said gluing member comprises a gluing roller rotating about an axis substantially parallel to an axis of the guide roller;
- and wherein said gluing roller is provided with a movement to move against and away from the guide roller, to alternately adopt an idle position, at a distance from the guide roller, and an active position, to apply glue to the tail retained on the guide roller.
A gluing device for gluing a tail of a log of web material, comprising:
- a guide roller to guide the tail of the log;
- on said guide roller, retaining elements to engage and retain the tail on the guide roller;
- a gluing member to apply glue to the tail retained on said guide roller;
- embossing members adapted to emboss a portion of the tail of the log before glue is applied, said gluing member being adapted to apply said glue to embossing protrusions formed by said embossing members;
- and wherein said guide roller is adapted to perform a first rotation in an unwinding direction, to transfer the tail of the log toward the embossing members and the gluing member, and a second rotation in an opposite direction, to rewind the tail of the log;
- and wherein during the first rotation said guide roller cooperates with said embossing members to emboss the tail of the log, and during the second rotation said guide roller cooperates with said gluing member to apply glue to the embossing protrusions formed on the tail of the log.
Dependencies are inferred from the claim text.