Patent ID: 8628038
Filing Date: 2014-01-14
Classification: B65H

Abstract:
1. A device for cutting and end-to-end adhesion for an unrolling machine comprising two spool holding elements ( 1 ) covered in their upper portion by a bridge structure ( 2 ) able to accommodate an accumulator ( 3 ) of sheets and two assemblies ( 4 ) for connecting sheets in an end to end fashion without overlapping upon stopping, with each one being coordinated with one spool holding element ( 1 ), characterized in that, each connection assembly ( 4 ) comprises a station ( 11 ) for the preparation and transfer of a joint ( 7 or 10 ), a device ( 12 ) for the holding and cutting of the new sheet ( 5 ) or of the ending sheet ( 9 ), respectively and, a device ( 13 ) for displacement by moving the sheet connection assemblies ( 4 ) together and apart, wherein every station ( 11 ) for the preparation and transfer of a joint ( 7 or 10 ) is composed of a reception cylinder ( 14 ) for the holding and application of a joint ( 7 or 10 ) mounted on a swiveling chassis ( 15 ) activated by at least one jack ( 16 ), wherein the swiveling chassis ( 15 ) is provided, close to a return cylinder ( 21 ), with a low clamp ( 28 ) intended to hold the new sheet ( 5 ) during its preparation.