Device for automatic elimination of scraps in the manufacture of rolls of paper
AssigneeItalconverting Srl
InventorsRenato Matteucci, Giuseppe Lupi, Mauro Biagioni
Life of this patent
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Abstract
A device for eliminating the head and tail scraps (S) that are left after rolls of paper (2), such as toilet paper, kitchen paper, paper for industrial use and the like, have been cut from a log, said device comprising two belts (4, 5) arranged in a vertical plane at an adjustable distance, to adapt the distance between their inside opposite branches (4', 5') to the size of the roll (R), so that the latter is gripped and conveyed between said belts (4, 5), whereas a scrap (S), smaller in size, rests only on the lower belt (4'), in the vicinity of its center line, falling through loss of balance of the resting point.
Claims12
A device for automatic elimination of the head and tail scraps (S) that are left after rolls of paper (R), comprising toilet paper, kitchen paper, and paper for industrial use, have been cut from a log and made to travel longitudinally in the direction of their axis, or flat, perpendicularly to their axis, said device comprising:
- at least one pair of belts (4, 5) arranged one above the other on a vertical plane,
- a mechanism for providing an adjustable distance between said pair of belts, so that the respective opposite inside branches of said belts (4', 5') advancing in the same direction of travel as the roll (R), are disposed in contact with the two opposite sides of a roll (R) of a correct size, said bottom belt being sized so that a scrap (S) that comes into contact only with the bottom belt (4) will fall to the side of the belt into a chamber below, through loss of balance from its resting point on said bottom belt.
Dependencies are inferred from the claim text.