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US 5,474,646 AGranted
Device for gluing the tail edge of logs of sheet material
AssigneeAlberto Consani S.p.A.
InventorRenato Matteucci
Life of this patent
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AssigneeAlberto Consani S.p.A.
InventorRenato Matteucci
Estimating the term…
A device for gluing the tail edge of sticks or logs (10) of sheet material, such as paper or the like, comprising a positioning assembly (2) and a gluing assembly (3). The positioning assembly (2) comprises two rollers (4, 5) with a fixed center distance, that can be operated in synchronism to position the log (10) correctly before its transfer to the gluing assembly (3), also comprising a pair of rollers (11, 12) with a fixed center distance that can be rotated in synchronism. The roller (11) is a suction roller, which holds the edge (29) of the log, while the roller (12) can be moved vertically to tip the log (10) onto a glue distributing nozzle (19), which applies a layer of adhesive to the log itself, before it is discharged by rolling between a plane (20) and a belt (22) opposite, which presses on the log (10) causing the tall edge (29) to adhere to the glue-coated section of the log.
A gluing device for the tail edge of sticks or logs of sheet material, particularly paper, to be situated at the discharge point of a re-winding machine, or downstream of a log accumulator-feeder, wherein a gluing assembly comprising a pair of rollers configured to be operated in synchronism, one of the rollers being a suction roller with a fixed axis and operative to hold the tail edge of a log in a predetermined position via a perforated section (17) at an outer surface thereof, and the other roller being arranged to move in a substantially vertical direction to tip the log onto a glue applicator nozzle which spreads a thin layer of glue substantially along a length of the log, and means for discharging the log with a rolling action so as to make the tail edge adhere to the blue-coated length of the log.
A re-winding machine for sheet materials, particularly paper, comprising a device for gluing the tail edge of a log having a pair of rollers configured to be operated in synchronism, one of the rollers being a suction roller with a fixed axis and operative to hold the tail edge of a log in a predetermined position via a perforated section at an outer surface thereof, and the other roller being arranged to move in a substantially vertical direction to tip the log onto a glue applicator nozzle which spreads a thin layer of glue substantially along a length of the log, and means for discharging the log with a rolling action so as to make the tail edge adhere to the blue-coated length of the log.
Dependencies are inferred from the claim text.